[llvm] r302028 - [X86][LWP] Add llvm support for LWP instructions.

Simon Pilgrim via llvm-commits llvm-commits at lists.llvm.org
Wed May 3 08:18:35 PDT 2017


Author: rksimon
Date: Wed May  3 10:18:34 2017
New Revision: 302028

URL: http://llvm.org/viewvc/llvm-project?rev=302028&view=rev
Log:
[X86][LWP] Add llvm support for LWP instructions.

This patch adds support for the the LightWeight Profiling (LWP) instructions which are available on all AMD Bulldozer class CPUs (bdver1 to bdver4).

Differential Revision: https://reviews.llvm.org/D32769

Added:
    llvm/trunk/test/CodeGen/X86/lwp-intrinsics-x86_64.ll
    llvm/trunk/test/CodeGen/X86/lwp-intrinsics.ll
    llvm/trunk/test/MC/X86/lwp-x86_64.s
    llvm/trunk/test/MC/X86/lwp.s
Modified:
    llvm/trunk/include/llvm/IR/IntrinsicsX86.td
    llvm/trunk/lib/Support/Host.cpp
    llvm/trunk/lib/Target/X86/X86.td
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
    llvm/trunk/lib/Target/X86/X86ISelLowering.h
    llvm/trunk/lib/Target/X86/X86InstrInfo.td
    llvm/trunk/lib/Target/X86/X86Schedule.td
    llvm/trunk/lib/Target/X86/X86Subtarget.cpp
    llvm/trunk/lib/Target/X86/X86Subtarget.h
    llvm/trunk/test/MC/Disassembler/X86/x86-32.txt
    llvm/trunk/test/MC/Disassembler/X86/x86-64.txt

Modified: llvm/trunk/include/llvm/IR/IntrinsicsX86.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/IntrinsicsX86.td?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/IntrinsicsX86.td (original)
+++ llvm/trunk/include/llvm/IR/IntrinsicsX86.td Wed May  3 10:18:34 2017
@@ -3221,6 +3221,29 @@ let TargetPrefix = "x86" in {  // All in
 }
 
 //===----------------------------------------------------------------------===//
+// LWP
+let TargetPrefix = "x86" in {  // All intrinsics start with "llvm.x86.".
+  def int_x86_llwpcb :
+              GCCBuiltin<"__builtin_ia32_llwpcb">,
+              Intrinsic<[], [llvm_ptr_ty], []>;
+  def int_x86_slwpcb :
+              GCCBuiltin<"__builtin_ia32_slwpcb">,
+              Intrinsic<[llvm_ptr_ty], [], []>;
+  def int_x86_lwpins32 :
+              GCCBuiltin<"__builtin_ia32_lwpins32">,
+              Intrinsic<[llvm_i8_ty], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty], []>;
+  def int_x86_lwpins64 :
+              GCCBuiltin<"__builtin_ia32_lwpins64">,
+              Intrinsic<[llvm_i8_ty], [llvm_i64_ty, llvm_i32_ty, llvm_i32_ty], []>;
+  def int_x86_lwpval32 :
+              GCCBuiltin<"__builtin_ia32_lwpval32">,
+              Intrinsic<[], [llvm_i32_ty, llvm_i32_ty, llvm_i32_ty], []>;
+  def int_x86_lwpval64 :
+              GCCBuiltin<"__builtin_ia32_lwpval64">,
+              Intrinsic<[], [llvm_i64_ty, llvm_i32_ty, llvm_i32_ty], []>;
+}
+
+//===----------------------------------------------------------------------===//
 // MMX
 
 // Empty MMX state op.

Modified: llvm/trunk/lib/Support/Host.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Host.cpp?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Support/Host.cpp (original)
+++ llvm/trunk/lib/Support/Host.cpp Wed May  3 10:18:34 2017
@@ -1,1495 +1,1496 @@
-//===-- Host.cpp - Implement OS Host Concept --------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file implements the operating system Host concept.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/Host.h"
-#include "llvm/ADT/SmallSet.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/Config/config.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/raw_ostream.h"
-#include <assert.h>
-#include <string.h>
-
-// Include the platform-specific parts of this class.
-#ifdef LLVM_ON_UNIX
-#include "Unix/Host.inc"
-#endif
-#ifdef LLVM_ON_WIN32
-#include "Windows/Host.inc"
-#endif
-#ifdef _MSC_VER
-#include <intrin.h>
-#endif
-#if defined(__APPLE__) && (defined(__ppc__) || defined(__powerpc__))
-#include <mach/host_info.h>
-#include <mach/mach.h>
-#include <mach/mach_host.h>
-#include <mach/machine.h>
-#endif
-
-#define DEBUG_TYPE "host-detection"
-
-//===----------------------------------------------------------------------===//
-//
-//  Implementations of the CPU detection routines
-//
-//===----------------------------------------------------------------------===//
-
-using namespace llvm;
-
-static std::unique_ptr<llvm::MemoryBuffer>
-    LLVM_ATTRIBUTE_UNUSED getProcCpuinfoContent() {
-  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Text =
-      llvm::MemoryBuffer::getFileAsStream("/proc/cpuinfo");
-  if (std::error_code EC = Text.getError()) {
-    llvm::errs() << "Can't read "
-                 << "/proc/cpuinfo: " << EC.message() << "\n";
-    return nullptr;
-  }
-  return std::move(*Text);
-}
-
-StringRef sys::detail::getHostCPUNameForPowerPC(
-    const StringRef &ProcCpuinfoContent) {
-  // Access to the Processor Version Register (PVR) on PowerPC is privileged,
-  // and so we must use an operating-system interface to determine the current
-  // processor type. On Linux, this is exposed through the /proc/cpuinfo file.
-  const char *generic = "generic";
-
-  // The cpu line is second (after the 'processor: 0' line), so if this
-  // buffer is too small then something has changed (or is wrong).
-  StringRef::const_iterator CPUInfoStart = ProcCpuinfoContent.begin();
-  StringRef::const_iterator CPUInfoEnd = ProcCpuinfoContent.end();
-
-  StringRef::const_iterator CIP = CPUInfoStart;
-
-  StringRef::const_iterator CPUStart = 0;
-  size_t CPULen = 0;
-
-  // We need to find the first line which starts with cpu, spaces, and a colon.
-  // After the colon, there may be some additional spaces and then the cpu type.
-  while (CIP < CPUInfoEnd && CPUStart == 0) {
-    if (CIP < CPUInfoEnd && *CIP == '\n')
-      ++CIP;
-
-    if (CIP < CPUInfoEnd && *CIP == 'c') {
-      ++CIP;
-      if (CIP < CPUInfoEnd && *CIP == 'p') {
-        ++CIP;
-        if (CIP < CPUInfoEnd && *CIP == 'u') {
-          ++CIP;
-          while (CIP < CPUInfoEnd && (*CIP == ' ' || *CIP == '\t'))
-            ++CIP;
-
-          if (CIP < CPUInfoEnd && *CIP == ':') {
-            ++CIP;
-            while (CIP < CPUInfoEnd && (*CIP == ' ' || *CIP == '\t'))
-              ++CIP;
-
-            if (CIP < CPUInfoEnd) {
-              CPUStart = CIP;
-              while (CIP < CPUInfoEnd && (*CIP != ' ' && *CIP != '\t' &&
-                                          *CIP != ',' && *CIP != '\n'))
-                ++CIP;
-              CPULen = CIP - CPUStart;
-            }
-          }
-        }
-      }
-    }
-
-    if (CPUStart == 0)
-      while (CIP < CPUInfoEnd && *CIP != '\n')
-        ++CIP;
-  }
-
-  if (CPUStart == 0)
-    return generic;
-
-  return StringSwitch<const char *>(StringRef(CPUStart, CPULen))
-      .Case("604e", "604e")
-      .Case("604", "604")
-      .Case("7400", "7400")
-      .Case("7410", "7400")
-      .Case("7447", "7400")
-      .Case("7455", "7450")
-      .Case("G4", "g4")
-      .Case("POWER4", "970")
-      .Case("PPC970FX", "970")
-      .Case("PPC970MP", "970")
-      .Case("G5", "g5")
-      .Case("POWER5", "g5")
-      .Case("A2", "a2")
-      .Case("POWER6", "pwr6")
-      .Case("POWER7", "pwr7")
-      .Case("POWER8", "pwr8")
-      .Case("POWER8E", "pwr8")
-      .Case("POWER8NVL", "pwr8")
-      .Case("POWER9", "pwr9")
-      .Default(generic);
-}
-
-StringRef sys::detail::getHostCPUNameForARM(
-    const StringRef &ProcCpuinfoContent) {
-  // The cpuid register on arm is not accessible from user space. On Linux,
-  // it is exposed through the /proc/cpuinfo file.
-
-  // Read 32 lines from /proc/cpuinfo, which should contain the CPU part line
-  // in all cases.
-  SmallVector<StringRef, 32> Lines;
-  ProcCpuinfoContent.split(Lines, "\n");
-
-  // Look for the CPU implementer line.
-  StringRef Implementer;
-  StringRef Hardware;
-  for (unsigned I = 0, E = Lines.size(); I != E; ++I) {
-    if (Lines[I].startswith("CPU implementer"))
-      Implementer = Lines[I].substr(15).ltrim("\t :");
-    if (Lines[I].startswith("Hardware"))
-      Hardware = Lines[I].substr(8).ltrim("\t :");
-  }
-
-  if (Implementer == "0x41") { // ARM Ltd.
-    // MSM8992/8994 may give cpu part for the core that the kernel is running on,
-    // which is undeterministic and wrong. Always return cortex-a53 for these SoC.
-    if (Hardware.endswith("MSM8994") || Hardware.endswith("MSM8996"))
-      return "cortex-a53";
-
-
-    // Look for the CPU part line.
-    for (unsigned I = 0, E = Lines.size(); I != E; ++I)
-      if (Lines[I].startswith("CPU part"))
-        // The CPU part is a 3 digit hexadecimal number with a 0x prefix. The
-        // values correspond to the "Part number" in the CP15/c0 register. The
-        // contents are specified in the various processor manuals.
-        return StringSwitch<const char *>(Lines[I].substr(8).ltrim("\t :"))
-            .Case("0x926", "arm926ej-s")
-            .Case("0xb02", "mpcore")
-            .Case("0xb36", "arm1136j-s")
-            .Case("0xb56", "arm1156t2-s")
-            .Case("0xb76", "arm1176jz-s")
-            .Case("0xc08", "cortex-a8")
-            .Case("0xc09", "cortex-a9")
-            .Case("0xc0f", "cortex-a15")
-            .Case("0xc20", "cortex-m0")
-            .Case("0xc23", "cortex-m3")
-            .Case("0xc24", "cortex-m4")
-            .Case("0xd04", "cortex-a35")
-            .Case("0xd03", "cortex-a53")
-            .Case("0xd07", "cortex-a57")
-            .Case("0xd08", "cortex-a72")
-            .Case("0xd09", "cortex-a73")
-            .Default("generic");
-  }
-
-  if (Implementer == "0x51") // Qualcomm Technologies, Inc.
-    // Look for the CPU part line.
-    for (unsigned I = 0, E = Lines.size(); I != E; ++I)
-      if (Lines[I].startswith("CPU part"))
-        // The CPU part is a 3 digit hexadecimal number with a 0x prefix. The
-        // values correspond to the "Part number" in the CP15/c0 register. The
-        // contents are specified in the various processor manuals.
-        return StringSwitch<const char *>(Lines[I].substr(8).ltrim("\t :"))
-            .Case("0x06f", "krait") // APQ8064
-            .Case("0x201", "kryo")
-            .Case("0x205", "kryo")
-            .Default("generic");
-
-  return "generic";
-}
-
-StringRef sys::detail::getHostCPUNameForS390x(
-    const StringRef &ProcCpuinfoContent) {
-  // STIDP is a privileged operation, so use /proc/cpuinfo instead.
-
-  // The "processor 0:" line comes after a fair amount of other information,
-  // including a cache breakdown, but this should be plenty.
-  SmallVector<StringRef, 32> Lines;
-  ProcCpuinfoContent.split(Lines, "\n");
-
-  // Look for the CPU features.
-  SmallVector<StringRef, 32> CPUFeatures;
-  for (unsigned I = 0, E = Lines.size(); I != E; ++I)
-    if (Lines[I].startswith("features")) {
-      size_t Pos = Lines[I].find(":");
-      if (Pos != StringRef::npos) {
-        Lines[I].drop_front(Pos + 1).split(CPUFeatures, ' ');
-        break;
-      }
-    }
-
-  // We need to check for the presence of vector support independently of
-  // the machine type, since we may only use the vector register set when
-  // supported by the kernel (and hypervisor).
-  bool HaveVectorSupport = false;
-  for (unsigned I = 0, E = CPUFeatures.size(); I != E; ++I) {
-    if (CPUFeatures[I] == "vx")
-      HaveVectorSupport = true;
-  }
-
-  // Now check the processor machine type.
-  for (unsigned I = 0, E = Lines.size(); I != E; ++I) {
-    if (Lines[I].startswith("processor ")) {
-      size_t Pos = Lines[I].find("machine = ");
-      if (Pos != StringRef::npos) {
-        Pos += sizeof("machine = ") - 1;
-        unsigned int Id;
-        if (!Lines[I].drop_front(Pos).getAsInteger(10, Id)) {
-          if (Id >= 2964 && HaveVectorSupport)
-            return "z13";
-          if (Id >= 2827)
-            return "zEC12";
-          if (Id >= 2817)
-            return "z196";
-        }
-      }
-      break;
-    }
-  }
-
-  return "generic";
-}
-
-#if defined(__i386__) || defined(_M_IX86) || \
-    defined(__x86_64__) || defined(_M_X64)
-
-enum VendorSignatures {
-  SIG_INTEL = 0x756e6547 /* Genu */,
-  SIG_AMD = 0x68747541 /* Auth */
-};
-
-enum ProcessorVendors {
-  VENDOR_INTEL = 1,
-  VENDOR_AMD,
-  VENDOR_OTHER,
-  VENDOR_MAX
-};
-
-enum ProcessorTypes {
-  INTEL_ATOM = 1,
-  INTEL_CORE2,
-  INTEL_COREI7,
-  AMDFAM10H,
-  AMDFAM15H,
-  INTEL_i386,
-  INTEL_i486,
-  INTEL_PENTIUM,
-  INTEL_PENTIUM_PRO,
-  INTEL_PENTIUM_II,
-  INTEL_PENTIUM_III,
-  INTEL_PENTIUM_IV,
-  INTEL_PENTIUM_M,
-  INTEL_CORE_DUO,
-  INTEL_XEONPHI,
-  INTEL_X86_64,
-  INTEL_NOCONA,
-  INTEL_PRESCOTT,
-  AMD_i486,
-  AMDPENTIUM,
-  AMDATHLON,
-  AMDFAM14H,
-  AMDFAM16H,
-  AMDFAM17H,
-  CPU_TYPE_MAX
-};
-
-enum ProcessorSubtypes {
-  INTEL_COREI7_NEHALEM = 1,
-  INTEL_COREI7_WESTMERE,
-  INTEL_COREI7_SANDYBRIDGE,
-  AMDFAM10H_BARCELONA,
-  AMDFAM10H_SHANGHAI,
-  AMDFAM10H_ISTANBUL,
-  AMDFAM15H_BDVER1,
-  AMDFAM15H_BDVER2,
-  INTEL_PENTIUM_MMX,
-  INTEL_CORE2_65,
-  INTEL_CORE2_45,
-  INTEL_COREI7_IVYBRIDGE,
-  INTEL_COREI7_HASWELL,
-  INTEL_COREI7_BROADWELL,
-  INTEL_COREI7_SKYLAKE,
-  INTEL_COREI7_SKYLAKE_AVX512,
-  INTEL_ATOM_BONNELL,
-  INTEL_ATOM_SILVERMONT,
-  INTEL_KNIGHTS_LANDING,
-  AMDPENTIUM_K6,
-  AMDPENTIUM_K62,
-  AMDPENTIUM_K63,
-  AMDPENTIUM_GEODE,
-  AMDATHLON_TBIRD,
-  AMDATHLON_MP,
-  AMDATHLON_XP,
-  AMDATHLON_K8SSE3,
-  AMDATHLON_OPTERON,
-  AMDATHLON_FX,
-  AMDATHLON_64,
-  AMD_BTVER1,
-  AMD_BTVER2,
-  AMDFAM15H_BDVER3,
-  AMDFAM15H_BDVER4,
-  AMDFAM17H_ZNVER1,
-  CPU_SUBTYPE_MAX
-};
-
-enum ProcessorFeatures {
-  FEATURE_CMOV = 0,
-  FEATURE_MMX,
-  FEATURE_POPCNT,
-  FEATURE_SSE,
-  FEATURE_SSE2,
-  FEATURE_SSE3,
-  FEATURE_SSSE3,
-  FEATURE_SSE4_1,
-  FEATURE_SSE4_2,
-  FEATURE_AVX,
-  FEATURE_AVX2,
-  FEATURE_AVX512,
-  FEATURE_AVX512SAVE,
-  FEATURE_MOVBE,
-  FEATURE_ADX,
-  FEATURE_EM64T
-};
-
-// The check below for i386 was copied from clang's cpuid.h (__get_cpuid_max).
-// Check motivated by bug reports for OpenSSL crashing on CPUs without CPUID
-// support. Consequently, for i386, the presence of CPUID is checked first
-// via the corresponding eflags bit.
-// Removal of cpuid.h header motivated by PR30384
-// Header cpuid.h and method __get_cpuid_max are not used in llvm, clang, openmp
-// or test-suite, but are used in external projects e.g. libstdcxx
-static bool isCpuIdSupported() {
-#if defined(__GNUC__) || defined(__clang__)
-#if defined(__i386__)
-  int __cpuid_supported;
-  __asm__("  pushfl\n"
-          "  popl   %%eax\n"
-          "  movl   %%eax,%%ecx\n"
-          "  xorl   $0x00200000,%%eax\n"
-          "  pushl  %%eax\n"
-          "  popfl\n"
-          "  pushfl\n"
-          "  popl   %%eax\n"
-          "  movl   $0,%0\n"
-          "  cmpl   %%eax,%%ecx\n"
-          "  je     1f\n"
-          "  movl   $1,%0\n"
-          "1:"
-          : "=r"(__cpuid_supported)
-          :
-          : "eax", "ecx");
-  if (!__cpuid_supported)
-    return false;
-#endif
-  return true;
-#endif
-  return true;
-}
-
-/// getX86CpuIDAndInfo - Execute the specified cpuid and return the 4 values in
-/// the specified arguments.  If we can't run cpuid on the host, return true.
-static bool getX86CpuIDAndInfo(unsigned value, unsigned *rEAX, unsigned *rEBX,
-                               unsigned *rECX, unsigned *rEDX) {
-#if defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER)
-#if defined(__GNUC__) || defined(__clang__)
-#if defined(__x86_64__)
-  // gcc doesn't know cpuid would clobber ebx/rbx. Preserve it manually.
-  // FIXME: should we save this for Clang?
-  __asm__("movq\t%%rbx, %%rsi\n\t"
-          "cpuid\n\t"
-          "xchgq\t%%rbx, %%rsi\n\t"
-          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
-          : "a"(value));
-#elif defined(__i386__)
-  __asm__("movl\t%%ebx, %%esi\n\t"
-          "cpuid\n\t"
-          "xchgl\t%%ebx, %%esi\n\t"
-          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
-          : "a"(value));
-#else
-  assert(0 && "This method is defined only for x86.");
-#endif
-#elif defined(_MSC_VER)
-  // The MSVC intrinsic is portable across x86 and x64.
-  int registers[4];
-  __cpuid(registers, value);
-  *rEAX = registers[0];
-  *rEBX = registers[1];
-  *rECX = registers[2];
-  *rEDX = registers[3];
-#endif
-  return false;
-#else
-  return true;
-#endif
-}
-
-/// getX86CpuIDAndInfoEx - Execute the specified cpuid with subleaf and return
-/// the 4 values in the specified arguments.  If we can't run cpuid on the host,
-/// return true.
-static bool getX86CpuIDAndInfoEx(unsigned value, unsigned subleaf,
-                                 unsigned *rEAX, unsigned *rEBX, unsigned *rECX,
-                                 unsigned *rEDX) {
-#if defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER)
-#if defined(__x86_64__) || defined(_M_X64)
-#if defined(__GNUC__) || defined(__clang__)
-  // gcc doesn't know cpuid would clobber ebx/rbx. Preseve it manually.
-  // FIXME: should we save this for Clang?
-  __asm__("movq\t%%rbx, %%rsi\n\t"
-          "cpuid\n\t"
-          "xchgq\t%%rbx, %%rsi\n\t"
-          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
-          : "a"(value), "c"(subleaf));
-#elif defined(_MSC_VER)
-  int registers[4];
-  __cpuidex(registers, value, subleaf);
-  *rEAX = registers[0];
-  *rEBX = registers[1];
-  *rECX = registers[2];
-  *rEDX = registers[3];
-#endif
-#elif defined(__i386__) || defined(_M_IX86)
-#if defined(__GNUC__) || defined(__clang__)
-  __asm__("movl\t%%ebx, %%esi\n\t"
-          "cpuid\n\t"
-          "xchgl\t%%ebx, %%esi\n\t"
-          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
-          : "a"(value), "c"(subleaf));
-#elif defined(_MSC_VER)
-  __asm {
-      mov   eax,value
-      mov   ecx,subleaf
-      cpuid
-      mov   esi,rEAX
-      mov   dword ptr [esi],eax
-      mov   esi,rEBX
-      mov   dword ptr [esi],ebx
-      mov   esi,rECX
-      mov   dword ptr [esi],ecx
-      mov   esi,rEDX
-      mov   dword ptr [esi],edx
-  }
-#endif
-#else
-  assert(0 && "This method is defined only for x86.");
-#endif
-  return false;
-#else
-  return true;
-#endif
-}
-
-static bool getX86XCR0(unsigned *rEAX, unsigned *rEDX) {
-#if defined(__GNUC__) || defined(__clang__)
-  // Check xgetbv; this uses a .byte sequence instead of the instruction
-  // directly because older assemblers do not include support for xgetbv and
-  // there is no easy way to conditionally compile based on the assembler used.
-  __asm__(".byte 0x0f, 0x01, 0xd0" : "=a"(*rEAX), "=d"(*rEDX) : "c"(0));
-  return false;
-#elif defined(_MSC_FULL_VER) && defined(_XCR_XFEATURE_ENABLED_MASK)
-  unsigned long long Result = _xgetbv(_XCR_XFEATURE_ENABLED_MASK);
-  *rEAX = Result;
-  *rEDX = Result >> 32;
-  return false;
-#else
-  return true;
-#endif
-}
-
-static void detectX86FamilyModel(unsigned EAX, unsigned *Family,
-                                 unsigned *Model) {
-  *Family = (EAX >> 8) & 0xf; // Bits 8 - 11
-  *Model = (EAX >> 4) & 0xf;  // Bits 4 - 7
-  if (*Family == 6 || *Family == 0xf) {
-    if (*Family == 0xf)
-      // Examine extended family ID if family ID is F.
-      *Family += (EAX >> 20) & 0xff; // Bits 20 - 27
-    // Examine extended model ID if family ID is 6 or F.
-    *Model += ((EAX >> 16) & 0xf) << 4; // Bits 16 - 19
-  }
-}
-
-static void
-getIntelProcessorTypeAndSubtype(unsigned int Family, unsigned int Model,
-                                unsigned int Brand_id, unsigned int Features,
-                                unsigned *Type, unsigned *Subtype) {
-  if (Brand_id != 0)
-    return;
-  switch (Family) {
-  case 3:
-    *Type = INTEL_i386;
-    break;
-  case 4:
-    switch (Model) {
-    case 0: // Intel486 DX processors
-    case 1: // Intel486 DX processors
-    case 2: // Intel486 SX processors
-    case 3: // Intel487 processors, IntelDX2 OverDrive processors,
-            // IntelDX2 processors
-    case 4: // Intel486 SL processor
-    case 5: // IntelSX2 processors
-    case 7: // Write-Back Enhanced IntelDX2 processors
-    case 8: // IntelDX4 OverDrive processors, IntelDX4 processors
-    default:
-      *Type = INTEL_i486;
-      break;
-    }
-    break;
-  case 5:
-    switch (Model) {
-    case 1: // Pentium OverDrive processor for Pentium processor (60, 66),
-            // Pentium processors (60, 66)
-    case 2: // Pentium OverDrive processor for Pentium processor (75, 90,
-            // 100, 120, 133), Pentium processors (75, 90, 100, 120, 133,
-            // 150, 166, 200)
-    case 3: // Pentium OverDrive processors for Intel486 processor-based
-            // systems
-      *Type = INTEL_PENTIUM;
-      break;
-    case 4: // Pentium OverDrive processor with MMX technology for Pentium
-            // processor (75, 90, 100, 120, 133), Pentium processor with
-            // MMX technology (166, 200)
-      *Type = INTEL_PENTIUM;
-      *Subtype = INTEL_PENTIUM_MMX;
-      break;
-    default:
-      *Type = INTEL_PENTIUM;
-      break;
-    }
-    break;
-  case 6:
-    switch (Model) {
-    case 0x01: // Pentium Pro processor
-      *Type = INTEL_PENTIUM_PRO;
-      break;
-    case 0x03: // Intel Pentium II OverDrive processor, Pentium II processor,
-               // model 03
-    case 0x05: // Pentium II processor, model 05, Pentium II Xeon processor,
-               // model 05, and Intel Celeron processor, model 05
-    case 0x06: // Celeron processor, model 06
-      *Type = INTEL_PENTIUM_II;
-      break;
-    case 0x07: // Pentium III processor, model 07, and Pentium III Xeon
-               // processor, model 07
-    case 0x08: // Pentium III processor, model 08, Pentium III Xeon processor,
-               // model 08, and Celeron processor, model 08
-    case 0x0a: // Pentium III Xeon processor, model 0Ah
-    case 0x0b: // Pentium III processor, model 0Bh
-      *Type = INTEL_PENTIUM_III;
-      break;
-    case 0x09: // Intel Pentium M processor, Intel Celeron M processor model 09.
-    case 0x0d: // Intel Pentium M processor, Intel Celeron M processor, model
-               // 0Dh. All processors are manufactured using the 90 nm process.
-    case 0x15: // Intel EP80579 Integrated Processor and Intel EP80579
-               // Integrated Processor with Intel QuickAssist Technology
-      *Type = INTEL_PENTIUM_M;
-      break;
-    case 0x0e: // Intel Core Duo processor, Intel Core Solo processor, model
-               // 0Eh. All processors are manufactured using the 65 nm process.
-      *Type = INTEL_CORE_DUO;
-      break;   // yonah
-    case 0x0f: // Intel Core 2 Duo processor, Intel Core 2 Duo mobile
-               // processor, Intel Core 2 Quad processor, Intel Core 2 Quad
-               // mobile processor, Intel Core 2 Extreme processor, Intel
-               // Pentium Dual-Core processor, Intel Xeon processor, model
-               // 0Fh. All processors are manufactured using the 65 nm process.
-    case 0x16: // Intel Celeron processor model 16h. All processors are
-               // manufactured using the 65 nm process
-      *Type = INTEL_CORE2; // "core2"
-      *Subtype = INTEL_CORE2_65;
-      break;
-    case 0x17: // Intel Core 2 Extreme processor, Intel Xeon processor, model
-               // 17h. All processors are manufactured using the 45 nm process.
-               //
-               // 45nm: Penryn , Wolfdale, Yorkfield (XE)
-    case 0x1d: // Intel Xeon processor MP. All processors are manufactured using
-               // the 45 nm process.
-      *Type = INTEL_CORE2; // "penryn"
-      *Subtype = INTEL_CORE2_45;
-      break;
-    case 0x1a: // Intel Core i7 processor and Intel Xeon processor. All
-               // processors are manufactured using the 45 nm process.
-    case 0x1e: // Intel(R) Core(TM) i7 CPU         870  @ 2.93GHz.
-               // As found in a Summer 2010 model iMac.
-    case 0x1f:
-    case 0x2e:             // Nehalem EX
-      *Type = INTEL_COREI7; // "nehalem"
-      *Subtype = INTEL_COREI7_NEHALEM;
-      break;
-    case 0x25: // Intel Core i7, laptop version.
-    case 0x2c: // Intel Core i7 processor and Intel Xeon processor. All
-               // processors are manufactured using the 32 nm process.
-    case 0x2f: // Westmere EX
-      *Type = INTEL_COREI7; // "westmere"
-      *Subtype = INTEL_COREI7_WESTMERE;
-      break;
-    case 0x2a: // Intel Core i7 processor. All processors are manufactured
-               // using the 32 nm process.
-    case 0x2d:
-      *Type = INTEL_COREI7; //"sandybridge"
-      *Subtype = INTEL_COREI7_SANDYBRIDGE;
-      break;
-    case 0x3a:
-    case 0x3e:             // Ivy Bridge EP
-      *Type = INTEL_COREI7; // "ivybridge"
-      *Subtype = INTEL_COREI7_IVYBRIDGE;
-      break;
-
-    // Haswell:
-    case 0x3c:
-    case 0x3f:
-    case 0x45:
-    case 0x46:
-      *Type = INTEL_COREI7; // "haswell"
-      *Subtype = INTEL_COREI7_HASWELL;
-      break;
-
-    // Broadwell:
-    case 0x3d:
-    case 0x47:
-    case 0x4f:
-    case 0x56:
-      *Type = INTEL_COREI7; // "broadwell"
-      *Subtype = INTEL_COREI7_BROADWELL;
-      break;
-
-    // Skylake:
-    case 0x4e: // Skylake mobile
-    case 0x5e: // Skylake desktop
-    case 0x8e: // Kaby Lake mobile
-    case 0x9e: // Kaby Lake desktop
-      *Type = INTEL_COREI7; // "skylake"
-      *Subtype = INTEL_COREI7_SKYLAKE;
-      break;
-
-    // Skylake Xeon:
-    case 0x55:
-      *Type = INTEL_COREI7;
-      // Check that we really have AVX512
-      if (Features & (1 << FEATURE_AVX512)) {
-        *Subtype = INTEL_COREI7_SKYLAKE_AVX512; // "skylake-avx512"
-      } else {
-        *Subtype = INTEL_COREI7_SKYLAKE; // "skylake"
-      }
-      break;
-
-    case 0x1c: // Most 45 nm Intel Atom processors
-    case 0x26: // 45 nm Atom Lincroft
-    case 0x27: // 32 nm Atom Medfield
-    case 0x35: // 32 nm Atom Midview
-    case 0x36: // 32 nm Atom Midview
-      *Type = INTEL_ATOM;
-      *Subtype = INTEL_ATOM_BONNELL;
-      break; // "bonnell"
-
-    // Atom Silvermont codes from the Intel software optimization guide.
-    case 0x37:
-    case 0x4a:
-    case 0x4d:
-    case 0x5a:
-    case 0x5d:
-    case 0x4c: // really airmont
-      *Type = INTEL_ATOM;
-      *Subtype = INTEL_ATOM_SILVERMONT;
-      break; // "silvermont"
-
-    case 0x57:
-      *Type = INTEL_XEONPHI; // knl
-      *Subtype = INTEL_KNIGHTS_LANDING;
-      break;
-
-    default: // Unknown family 6 CPU, try to guess.
-      if (Features & (1 << FEATURE_AVX512)) {
-        *Type = INTEL_XEONPHI; // knl
-        *Subtype = INTEL_KNIGHTS_LANDING;
-        break;
-      }
-      if (Features & (1 << FEATURE_ADX)) {
-        *Type = INTEL_COREI7;
-        *Subtype = INTEL_COREI7_BROADWELL;
-        break;
-      }
-      if (Features & (1 << FEATURE_AVX2)) {
-        *Type = INTEL_COREI7;
-        *Subtype = INTEL_COREI7_HASWELL;
-        break;
-      }
-      if (Features & (1 << FEATURE_AVX)) {
-        *Type = INTEL_COREI7;
-        *Subtype = INTEL_COREI7_SANDYBRIDGE;
-        break;
-      }
-      if (Features & (1 << FEATURE_SSE4_2)) {
-        if (Features & (1 << FEATURE_MOVBE)) {
-          *Type = INTEL_ATOM;
-          *Subtype = INTEL_ATOM_SILVERMONT;
-        } else {
-          *Type = INTEL_COREI7;
-          *Subtype = INTEL_COREI7_NEHALEM;
-        }
-        break;
-      }
-      if (Features & (1 << FEATURE_SSE4_1)) {
-        *Type = INTEL_CORE2; // "penryn"
-        *Subtype = INTEL_CORE2_45;
-        break;
-      }
-      if (Features & (1 << FEATURE_SSSE3)) {
-        if (Features & (1 << FEATURE_MOVBE)) {
-          *Type = INTEL_ATOM;
-          *Subtype = INTEL_ATOM_BONNELL; // "bonnell"
-        } else {
-          *Type = INTEL_CORE2; // "core2"
-          *Subtype = INTEL_CORE2_65;
-        }
-        break;
-      }
-      if (Features & (1 << FEATURE_EM64T)) {
-        *Type = INTEL_X86_64;
-        break; // x86-64
-      }
-      if (Features & (1 << FEATURE_SSE2)) {
-        *Type = INTEL_PENTIUM_M;
-        break;
-      }
-      if (Features & (1 << FEATURE_SSE)) {
-        *Type = INTEL_PENTIUM_III;
-        break;
-      }
-      if (Features & (1 << FEATURE_MMX)) {
-        *Type = INTEL_PENTIUM_II;
-        break;
-      }
-      *Type = INTEL_PENTIUM_PRO;
-      break;
-    }
-    break;
-  case 15: {
-    switch (Model) {
-    case 0: // Pentium 4 processor, Intel Xeon processor. All processors are
-            // model 00h and manufactured using the 0.18 micron process.
-    case 1: // Pentium 4 processor, Intel Xeon processor, Intel Xeon
-            // processor MP, and Intel Celeron processor. All processors are
-            // model 01h and manufactured using the 0.18 micron process.
-    case 2: // Pentium 4 processor, Mobile Intel Pentium 4 processor - M,
-            // Intel Xeon processor, Intel Xeon processor MP, Intel Celeron
-            // processor, and Mobile Intel Celeron processor. All processors
-            // are model 02h and manufactured using the 0.13 micron process.
-      *Type =
-          ((Features & (1 << FEATURE_EM64T)) ? INTEL_X86_64 : INTEL_PENTIUM_IV);
-      break;
-
-    case 3: // Pentium 4 processor, Intel Xeon processor, Intel Celeron D
-            // processor. All processors are model 03h and manufactured using
-            // the 90 nm process.
-    case 4: // Pentium 4 processor, Pentium 4 processor Extreme Edition,
-            // Pentium D processor, Intel Xeon processor, Intel Xeon
-            // processor MP, Intel Celeron D processor. All processors are
-            // model 04h and manufactured using the 90 nm process.
-    case 6: // Pentium 4 processor, Pentium D processor, Pentium processor
-            // Extreme Edition, Intel Xeon processor, Intel Xeon processor
-            // MP, Intel Celeron D processor. All processors are model 06h
-            // and manufactured using the 65 nm process.
-      *Type =
-          ((Features & (1 << FEATURE_EM64T)) ? INTEL_NOCONA : INTEL_PRESCOTT);
-      break;
-
-    default:
-      *Type =
-          ((Features & (1 << FEATURE_EM64T)) ? INTEL_X86_64 : INTEL_PENTIUM_IV);
-      break;
-    }
-    break;
-  }
-  default:
-    break; /*"generic"*/
-  }
-}
-
-static void getAMDProcessorTypeAndSubtype(unsigned int Family,
-                                          unsigned int Model,
-                                          unsigned int Features,
-                                          unsigned *Type,
-                                          unsigned *Subtype) {
-  // FIXME: this poorly matches the generated SubtargetFeatureKV table.  There
-  // appears to be no way to generate the wide variety of AMD-specific targets
-  // from the information returned from CPUID.
-  switch (Family) {
-  case 4:
-    *Type = AMD_i486;
-    break;
-  case 5:
-    *Type = AMDPENTIUM;
-    switch (Model) {
-    case 6:
-    case 7:
-      *Subtype = AMDPENTIUM_K6;
-      break; // "k6"
-    case 8:
-      *Subtype = AMDPENTIUM_K62;
-      break; // "k6-2"
-    case 9:
-    case 13:
-      *Subtype = AMDPENTIUM_K63;
-      break; // "k6-3"
-    case 10:
-      *Subtype = AMDPENTIUM_GEODE;
-      break; // "geode"
-    }
-    break;
-  case 6:
-    *Type = AMDATHLON;
-    switch (Model) {
-    case 4:
-      *Subtype = AMDATHLON_TBIRD;
-      break; // "athlon-tbird"
-    case 6:
-    case 7:
-    case 8:
-      *Subtype = AMDATHLON_MP;
-      break; // "athlon-mp"
-    case 10:
-      *Subtype = AMDATHLON_XP;
-      break; // "athlon-xp"
-    }
-    break;
-  case 15:
-    *Type = AMDATHLON;
-    if (Features & (1 << FEATURE_SSE3)) {
-      *Subtype = AMDATHLON_K8SSE3;
-      break; // "k8-sse3"
-    }
-    switch (Model) {
-    case 1:
-      *Subtype = AMDATHLON_OPTERON;
-      break; // "opteron"
-    case 5:
-      *Subtype = AMDATHLON_FX;
-      break; // "athlon-fx"; also opteron
-    default:
-      *Subtype = AMDATHLON_64;
-      break; // "athlon64"
-    }
-    break;
-  case 16:
-    *Type = AMDFAM10H; // "amdfam10"
-    switch (Model) {
-    case 2:
-      *Subtype = AMDFAM10H_BARCELONA;
-      break;
-    case 4:
-      *Subtype = AMDFAM10H_SHANGHAI;
-      break;
-    case 8:
-      *Subtype = AMDFAM10H_ISTANBUL;
-      break;
-    }
-    break;
-  case 20:
-    *Type = AMDFAM14H;
-    *Subtype = AMD_BTVER1;
-    break; // "btver1";
-  case 21:
-    *Type = AMDFAM15H;
-    if (!(Features &
-          (1 << FEATURE_AVX))) { // If no AVX support, provide a sane fallback.
-      *Subtype = AMD_BTVER1;
-      break; // "btver1"
-    }
-    if (Model >= 0x50 && Model <= 0x6f) {
-      *Subtype = AMDFAM15H_BDVER4;
-      break; // "bdver4"; 50h-6Fh: Excavator
-    }
-    if (Model >= 0x30 && Model <= 0x3f) {
-      *Subtype = AMDFAM15H_BDVER3;
-      break; // "bdver3"; 30h-3Fh: Steamroller
-    }
-    if (Model >= 0x10 && Model <= 0x1f) {
-      *Subtype = AMDFAM15H_BDVER2;
-      break; // "bdver2"; 10h-1Fh: Piledriver
-    }
-    if (Model <= 0x0f) {
-      *Subtype = AMDFAM15H_BDVER1;
-      break; // "bdver1"; 00h-0Fh: Bulldozer
-    }
-    break;
-  case 22:
-    *Type = AMDFAM16H;
-    if (!(Features &
-          (1 << FEATURE_AVX))) { // If no AVX support provide a sane fallback.
-      *Subtype = AMD_BTVER1;
-      break; // "btver1";
-    }
-    *Subtype = AMD_BTVER2;
-    break; // "btver2"
-  case 23:
-    *Type = AMDFAM17H;
-    if (Features & (1 << FEATURE_ADX)) {
-      *Subtype = AMDFAM17H_ZNVER1;
-      break; // "znver1"
-    }
-    *Subtype =  AMD_BTVER1;
-    break;
-  default:
-    break; // "generic"
-  }
-}
-
-static unsigned getAvailableFeatures(unsigned int ECX, unsigned int EDX,
-                                     unsigned MaxLeaf) {
-  unsigned Features = 0;
-  unsigned int EAX, EBX;
-  Features |= (((EDX >> 23) & 1) << FEATURE_MMX);
-  Features |= (((EDX >> 25) & 1) << FEATURE_SSE);
-  Features |= (((EDX >> 26) & 1) << FEATURE_SSE2);
-  Features |= (((ECX >> 0) & 1) << FEATURE_SSE3);
-  Features |= (((ECX >> 9) & 1) << FEATURE_SSSE3);
-  Features |= (((ECX >> 19) & 1) << FEATURE_SSE4_1);
-  Features |= (((ECX >> 20) & 1) << FEATURE_SSE4_2);
-  Features |= (((ECX >> 22) & 1) << FEATURE_MOVBE);
-
-  // If CPUID indicates support for XSAVE, XRESTORE and AVX, and XGETBV
-  // indicates that the AVX registers will be saved and restored on context
-  // switch, then we have full AVX support.
-  const unsigned AVXBits = (1 << 27) | (1 << 28);
-  bool HasAVX = ((ECX & AVXBits) == AVXBits) && !getX86XCR0(&EAX, &EDX) &&
-                ((EAX & 0x6) == 0x6);
-  bool HasAVX512Save = HasAVX && ((EAX & 0xe0) == 0xe0);
-  bool HasLeaf7 =
-      MaxLeaf >= 0x7 && !getX86CpuIDAndInfoEx(0x7, 0x0, &EAX, &EBX, &ECX, &EDX);
-  bool HasADX = HasLeaf7 && ((EBX >> 19) & 1);
-  bool HasAVX2 = HasAVX && HasLeaf7 && (EBX & 0x20);
-  bool HasAVX512 = HasLeaf7 && HasAVX512Save && ((EBX >> 16) & 1);
-  Features |= (HasAVX << FEATURE_AVX);
-  Features |= (HasAVX2 << FEATURE_AVX2);
-  Features |= (HasAVX512 << FEATURE_AVX512);
-  Features |= (HasAVX512Save << FEATURE_AVX512SAVE);
-  Features |= (HasADX << FEATURE_ADX);
-
-  getX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX);
-  Features |= (((EDX >> 29) & 0x1) << FEATURE_EM64T);
-  return Features;
-}
-
-StringRef sys::getHostCPUName() {
-  unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
-  unsigned MaxLeaf, Vendor;
-
-#if defined(__GNUC__) || defined(__clang__)
-  //FIXME: include cpuid.h from clang or copy __get_cpuid_max here
-  // and simplify it to not invoke __cpuid (like cpu_model.c in
-  // compiler-rt/lib/builtins/cpu_model.c?
-  // Opting for the second option.
-  if(!isCpuIdSupported())
-    return "generic";
-#endif
-  if (getX86CpuIDAndInfo(0, &MaxLeaf, &Vendor, &ECX, &EDX))
-    return "generic";
-  if (getX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
-    return "generic";
-
-  unsigned Brand_id = EBX & 0xff;
-  unsigned Family = 0, Model = 0;
-  unsigned Features = 0;
-  detectX86FamilyModel(EAX, &Family, &Model);
-  Features = getAvailableFeatures(ECX, EDX, MaxLeaf);
-
-  unsigned Type;
-  unsigned Subtype;
-
-  if (Vendor == SIG_INTEL) {
-    getIntelProcessorTypeAndSubtype(Family, Model, Brand_id, Features, &Type,
-                                    &Subtype);
-    switch (Type) {
-    case INTEL_i386:
-      return "i386";
-    case INTEL_i486:
-      return "i486";
-    case INTEL_PENTIUM:
-      if (Subtype == INTEL_PENTIUM_MMX)
-        return "pentium-mmx";
-      return "pentium";
-    case INTEL_PENTIUM_PRO:
-      return "pentiumpro";
-    case INTEL_PENTIUM_II:
-      return "pentium2";
-    case INTEL_PENTIUM_III:
-      return "pentium3";
-    case INTEL_PENTIUM_IV:
-      return "pentium4";
-    case INTEL_PENTIUM_M:
-      return "pentium-m";
-    case INTEL_CORE_DUO:
-      return "yonah";
-    case INTEL_CORE2:
-      switch (Subtype) {
-      case INTEL_CORE2_65:
-        return "core2";
-      case INTEL_CORE2_45:
-        return "penryn";
-      default:
-        return "core2";
-      }
-    case INTEL_COREI7:
-      switch (Subtype) {
-      case INTEL_COREI7_NEHALEM:
-        return "nehalem";
-      case INTEL_COREI7_WESTMERE:
-        return "westmere";
-      case INTEL_COREI7_SANDYBRIDGE:
-        return "sandybridge";
-      case INTEL_COREI7_IVYBRIDGE:
-        return "ivybridge";
-      case INTEL_COREI7_HASWELL:
-        return "haswell";
-      case INTEL_COREI7_BROADWELL:
-        return "broadwell";
-      case INTEL_COREI7_SKYLAKE:
-        return "skylake";
-      case INTEL_COREI7_SKYLAKE_AVX512:
-        return "skylake-avx512";
-      default:
-        return "corei7";
-      }
-    case INTEL_ATOM:
-      switch (Subtype) {
-      case INTEL_ATOM_BONNELL:
-        return "bonnell";
-      case INTEL_ATOM_SILVERMONT:
-        return "silvermont";
-      default:
-        return "atom";
-      }
-    case INTEL_XEONPHI:
-      return "knl"; /*update for more variants added*/
-    case INTEL_X86_64:
-      return "x86-64";
-    case INTEL_NOCONA:
-      return "nocona";
-    case INTEL_PRESCOTT:
-      return "prescott";
-    default:
-      return "generic";
-    }
-  } else if (Vendor == SIG_AMD) {
-    getAMDProcessorTypeAndSubtype(Family, Model, Features, &Type, &Subtype);
-    switch (Type) {
-    case AMD_i486:
-      return "i486";
-    case AMDPENTIUM:
-      switch (Subtype) {
-      case AMDPENTIUM_K6:
-        return "k6";
-      case AMDPENTIUM_K62:
-        return "k6-2";
-      case AMDPENTIUM_K63:
-        return "k6-3";
-      case AMDPENTIUM_GEODE:
-        return "geode";
-      default:
-        return "pentium";
-      }
-    case AMDATHLON:
-      switch (Subtype) {
-      case AMDATHLON_TBIRD:
-        return "athlon-tbird";
-      case AMDATHLON_MP:
-        return "athlon-mp";
-      case AMDATHLON_XP:
-        return "athlon-xp";
-      case AMDATHLON_K8SSE3:
-        return "k8-sse3";
-      case AMDATHLON_OPTERON:
-        return "opteron";
-      case AMDATHLON_FX:
-        return "athlon-fx";
-      case AMDATHLON_64:
-        return "athlon64";
-      default:
-        return "athlon";
-      }
-    case AMDFAM10H:
-      if(Subtype == AMDFAM10H_BARCELONA)
-        return "barcelona";
-      return "amdfam10";
-    case AMDFAM14H:
-      return "btver1";
-    case AMDFAM15H:
-      switch (Subtype) {
-      case AMDFAM15H_BDVER1:
-        return "bdver1";
-      case AMDFAM15H_BDVER2:
-        return "bdver2";
-      case AMDFAM15H_BDVER3:
-        return "bdver3";
-      case AMDFAM15H_BDVER4:
-        return "bdver4";
-      case AMD_BTVER1:
-        return "btver1";
-      default:
-        return "amdfam15";
-      }
-    case AMDFAM16H:
-      switch (Subtype) {
-      case AMD_BTVER1:
-        return "btver1";
-      case AMD_BTVER2:
-        return "btver2";
-      default:
-        return "amdfam16";
-      }
-    case AMDFAM17H:
-      switch (Subtype) {
-      case AMD_BTVER1:
-        return "btver1";
-      case AMDFAM17H_ZNVER1:
-        return "znver1";
-      default:
-        return "amdfam17";
-      }
-    default:
-      return "generic";
-    }
-  }
-  return "generic";
-}
-
-#elif defined(__APPLE__) && (defined(__ppc__) || defined(__powerpc__))
-StringRef sys::getHostCPUName() {
-  host_basic_info_data_t hostInfo;
-  mach_msg_type_number_t infoCount;
-
-  infoCount = HOST_BASIC_INFO_COUNT;
-  host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo,
-            &infoCount);
-
-  if (hostInfo.cpu_type != CPU_TYPE_POWERPC)
-    return "generic";
-
-  switch (hostInfo.cpu_subtype) {
-  case CPU_SUBTYPE_POWERPC_601:
-    return "601";
-  case CPU_SUBTYPE_POWERPC_602:
-    return "602";
-  case CPU_SUBTYPE_POWERPC_603:
-    return "603";
-  case CPU_SUBTYPE_POWERPC_603e:
-    return "603e";
-  case CPU_SUBTYPE_POWERPC_603ev:
-    return "603ev";
-  case CPU_SUBTYPE_POWERPC_604:
-    return "604";
-  case CPU_SUBTYPE_POWERPC_604e:
-    return "604e";
-  case CPU_SUBTYPE_POWERPC_620:
-    return "620";
-  case CPU_SUBTYPE_POWERPC_750:
-    return "750";
-  case CPU_SUBTYPE_POWERPC_7400:
-    return "7400";
-  case CPU_SUBTYPE_POWERPC_7450:
-    return "7450";
-  case CPU_SUBTYPE_POWERPC_970:
-    return "970";
-  default:;
-  }
-
-  return "generic";
-}
-#elif defined(__linux__) && (defined(__ppc__) || defined(__powerpc__))
-StringRef sys::getHostCPUName() {
-  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
-  const StringRef& Content = P ? P->getBuffer() : "";
-  return detail::getHostCPUNameForPowerPC(Content);
-}
-#elif defined(__linux__) && (defined(__arm__) || defined(__aarch64__))
-StringRef sys::getHostCPUName() {
-  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
-  const StringRef& Content = P ? P->getBuffer() : "";
-  return detail::getHostCPUNameForARM(Content);
-}
-#elif defined(__linux__) && defined(__s390x__)
-StringRef sys::getHostCPUName() {
-  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
-  const StringRef& Content = P ? P->getBuffer() : "";
-  return detail::getHostCPUNameForS390x(Content);
-}
-#else
-StringRef sys::getHostCPUName() { return "generic"; }
-#endif
-
-#if defined(__linux__) && defined(__x86_64__)
-// On Linux, the number of physical cores can be computed from /proc/cpuinfo,
-// using the number of unique physical/core id pairs. The following
-// implementation reads the /proc/cpuinfo format on an x86_64 system.
-static int computeHostNumPhysicalCores() {
-  // Read /proc/cpuinfo as a stream (until EOF reached). It cannot be
-  // mmapped because it appears to have 0 size.
-  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Text =
-      llvm::MemoryBuffer::getFileAsStream("/proc/cpuinfo");
-  if (std::error_code EC = Text.getError()) {
-    llvm::errs() << "Can't read "
-                 << "/proc/cpuinfo: " << EC.message() << "\n";
-    return -1;
-  }
-  SmallVector<StringRef, 8> strs;
-  (*Text)->getBuffer().split(strs, "\n", /*MaxSplit=*/-1,
-                             /*KeepEmpty=*/false);
-  int CurPhysicalId = -1;
-  int CurCoreId = -1;
-  SmallSet<std::pair<int, int>, 32> UniqueItems;
-  for (auto &Line : strs) {
-    Line = Line.trim();
-    if (!Line.startswith("physical id") && !Line.startswith("core id"))
-      continue;
-    std::pair<StringRef, StringRef> Data = Line.split(':');
-    auto Name = Data.first.trim();
-    auto Val = Data.second.trim();
-    if (Name == "physical id") {
-      assert(CurPhysicalId == -1 &&
-             "Expected a core id before seeing another physical id");
-      Val.getAsInteger(10, CurPhysicalId);
-    }
-    if (Name == "core id") {
-      assert(CurCoreId == -1 &&
-             "Expected a physical id before seeing another core id");
-      Val.getAsInteger(10, CurCoreId);
-    }
-    if (CurPhysicalId != -1 && CurCoreId != -1) {
-      UniqueItems.insert(std::make_pair(CurPhysicalId, CurCoreId));
-      CurPhysicalId = -1;
-      CurCoreId = -1;
-    }
-  }
-  return UniqueItems.size();
-}
-#elif defined(__APPLE__) && defined(__x86_64__)
-#include <sys/param.h>
-#include <sys/sysctl.h>
-
-// Gets the number of *physical cores* on the machine.
-static int computeHostNumPhysicalCores() {
-  uint32_t count;
-  size_t len = sizeof(count);
-  sysctlbyname("hw.physicalcpu", &count, &len, NULL, 0);
-  if (count < 1) {
-    int nm[2];
-    nm[0] = CTL_HW;
-    nm[1] = HW_AVAILCPU;
-    sysctl(nm, 2, &count, &len, NULL, 0);
-    if (count < 1)
-      return -1;
-  }
-  return count;
-}
-#else
-// On other systems, return -1 to indicate unknown.
-static int computeHostNumPhysicalCores() { return -1; }
-#endif
-
-int sys::getHostNumPhysicalCores() {
-  static int NumCores = computeHostNumPhysicalCores();
-  return NumCores;
-}
-
-#if defined(__i386__) || defined(_M_IX86) || \
-    defined(__x86_64__) || defined(_M_X64)
-bool sys::getHostCPUFeatures(StringMap<bool> &Features) {
-  unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
-  unsigned MaxLevel;
-  union {
-    unsigned u[3];
-    char c[12];
-  } text;
-
-  if (getX86CpuIDAndInfo(0, &MaxLevel, text.u + 0, text.u + 2, text.u + 1) ||
-      MaxLevel < 1)
-    return false;
-
-  getX86CpuIDAndInfo(1, &EAX, &EBX, &ECX, &EDX);
-
-  Features["cmov"] = (EDX >> 15) & 1;
-  Features["mmx"] = (EDX >> 23) & 1;
-  Features["sse"] = (EDX >> 25) & 1;
-  Features["sse2"] = (EDX >> 26) & 1;
-  Features["sse3"] = (ECX >> 0) & 1;
-  Features["ssse3"] = (ECX >> 9) & 1;
-  Features["sse4.1"] = (ECX >> 19) & 1;
-  Features["sse4.2"] = (ECX >> 20) & 1;
-
-  Features["pclmul"] = (ECX >> 1) & 1;
-  Features["cx16"] = (ECX >> 13) & 1;
-  Features["movbe"] = (ECX >> 22) & 1;
-  Features["popcnt"] = (ECX >> 23) & 1;
-  Features["aes"] = (ECX >> 25) & 1;
-  Features["rdrnd"] = (ECX >> 30) & 1;
-
-  // If CPUID indicates support for XSAVE, XRESTORE and AVX, and XGETBV
-  // indicates that the AVX registers will be saved and restored on context
-  // switch, then we have full AVX support.
-  bool HasAVXSave = ((ECX >> 27) & 1) && ((ECX >> 28) & 1) &&
-                    !getX86XCR0(&EAX, &EDX) && ((EAX & 0x6) == 0x6);
-  Features["avx"] = HasAVXSave;
-  Features["fma"] = HasAVXSave && (ECX >> 12) & 1;
-  Features["f16c"] = HasAVXSave && (ECX >> 29) & 1;
-
-  // Only enable XSAVE if OS has enabled support for saving YMM state.
-  Features["xsave"] = HasAVXSave && (ECX >> 26) & 1;
-
-  // AVX512 requires additional context to be saved by the OS.
-  bool HasAVX512Save = HasAVXSave && ((EAX & 0xe0) == 0xe0);
-
-  unsigned MaxExtLevel;
-  getX86CpuIDAndInfo(0x80000000, &MaxExtLevel, &EBX, &ECX, &EDX);
-
-  bool HasExtLeaf1 = MaxExtLevel >= 0x80000001 &&
-                     !getX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX);
-  Features["lzcnt"] = HasExtLeaf1 && ((ECX >> 5) & 1);
-  Features["sse4a"] = HasExtLeaf1 && ((ECX >> 6) & 1);
-  Features["prfchw"] = HasExtLeaf1 && ((ECX >> 8) & 1);
-  Features["xop"] = HasExtLeaf1 && ((ECX >> 11) & 1) && HasAVXSave;
-  Features["fma4"] = HasExtLeaf1 && ((ECX >> 16) & 1) && HasAVXSave;
-  Features["tbm"] = HasExtLeaf1 && ((ECX >> 21) & 1);
-  Features["mwaitx"] = HasExtLeaf1 && ((ECX >> 29) & 1);
-
-  bool HasExtLeaf8 = MaxExtLevel >= 0x80000008 &&
-                     !getX86CpuIDAndInfoEx(0x80000008,0x0, &EAX, &EBX, &ECX, &EDX);
-  Features["clzero"] = HasExtLeaf8 && ((EBX >> 0) & 1);
-
-  bool HasLeaf7 =
-      MaxLevel >= 7 && !getX86CpuIDAndInfoEx(0x7, 0x0, &EAX, &EBX, &ECX, &EDX);
-
-  // AVX2 is only supported if we have the OS save support from AVX.
-  Features["avx2"] = HasAVXSave && HasLeaf7 && ((EBX >> 5) & 1);
-
-  Features["fsgsbase"] = HasLeaf7 && ((EBX >> 0) & 1);
-  Features["sgx"] = HasLeaf7 && ((EBX >> 2) & 1);
-  Features["bmi"] = HasLeaf7 && ((EBX >> 3) & 1);
-  Features["bmi2"] = HasLeaf7 && ((EBX >> 8) & 1);
-  Features["rtm"] = HasLeaf7 && ((EBX >> 11) & 1);
-  Features["rdseed"] = HasLeaf7 && ((EBX >> 18) & 1);
-  Features["adx"] = HasLeaf7 && ((EBX >> 19) & 1);
-  Features["clflushopt"] = HasLeaf7 && ((EBX >> 23) & 1);
-  Features["clwb"] = HasLeaf7 && ((EBX >> 24) & 1);
-  Features["sha"] = HasLeaf7 && ((EBX >> 29) & 1);
-
-  // AVX512 is only supported if the OS supports the context save for it.
-  Features["avx512f"] = HasLeaf7 && ((EBX >> 16) & 1) && HasAVX512Save;
-  Features["avx512dq"] = HasLeaf7 && ((EBX >> 17) & 1) && HasAVX512Save;
-  Features["avx512ifma"] = HasLeaf7 && ((EBX >> 21) & 1) && HasAVX512Save;
-  Features["avx512pf"] = HasLeaf7 && ((EBX >> 26) & 1) && HasAVX512Save;
-  Features["avx512er"] = HasLeaf7 && ((EBX >> 27) & 1) && HasAVX512Save;
-  Features["avx512cd"] = HasLeaf7 && ((EBX >> 28) & 1) && HasAVX512Save;
-  Features["avx512bw"] = HasLeaf7 && ((EBX >> 30) & 1) && HasAVX512Save;
-  Features["avx512vl"] = HasLeaf7 && ((EBX >> 31) & 1) && HasAVX512Save;
-
-  Features["prefetchwt1"] = HasLeaf7 && (ECX & 1);
-  Features["avx512vbmi"] = HasLeaf7 && ((ECX >> 1) & 1) && HasAVX512Save;
-  // Enable protection keys
-  Features["pku"] = HasLeaf7 && ((ECX >> 4) & 1);
-
-  bool HasLeafD = MaxLevel >= 0xd &&
-                  !getX86CpuIDAndInfoEx(0xd, 0x1, &EAX, &EBX, &ECX, &EDX);
-
-  // Only enable XSAVE if OS has enabled support for saving YMM state.
-  Features["xsaveopt"] = HasAVXSave && HasLeafD && ((EAX >> 0) & 1);
-  Features["xsavec"] = HasAVXSave && HasLeafD && ((EAX >> 1) & 1);
-  Features["xsaves"] = HasAVXSave && HasLeafD && ((EAX >> 3) & 1);
-
-  return true;
-}
-#elif defined(__linux__) && (defined(__arm__) || defined(__aarch64__))
-bool sys::getHostCPUFeatures(StringMap<bool> &Features) {
-  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
-  if (!P)
-    return false;
-
-  SmallVector<StringRef, 32> Lines;
-  P->getBuffer().split(Lines, "\n");
-
-  SmallVector<StringRef, 32> CPUFeatures;
-
-  // Look for the CPU features.
-  for (unsigned I = 0, E = Lines.size(); I != E; ++I)
-    if (Lines[I].startswith("Features")) {
-      Lines[I].split(CPUFeatures, ' ');
-      break;
-    }
-
-#if defined(__aarch64__)
-  // Keep track of which crypto features we have seen
-  enum { CAP_AES = 0x1, CAP_PMULL = 0x2, CAP_SHA1 = 0x4, CAP_SHA2 = 0x8 };
-  uint32_t crypto = 0;
-#endif
-
-  for (unsigned I = 0, E = CPUFeatures.size(); I != E; ++I) {
-    StringRef LLVMFeatureStr = StringSwitch<StringRef>(CPUFeatures[I])
-#if defined(__aarch64__)
-                                   .Case("asimd", "neon")
-                                   .Case("fp", "fp-armv8")
-                                   .Case("crc32", "crc")
-#else
-                                   .Case("half", "fp16")
-                                   .Case("neon", "neon")
-                                   .Case("vfpv3", "vfp3")
-                                   .Case("vfpv3d16", "d16")
-                                   .Case("vfpv4", "vfp4")
-                                   .Case("idiva", "hwdiv-arm")
-                                   .Case("idivt", "hwdiv")
-#endif
-                                   .Default("");
-
-#if defined(__aarch64__)
-    // We need to check crypto separately since we need all of the crypto
-    // extensions to enable the subtarget feature
-    if (CPUFeatures[I] == "aes")
-      crypto |= CAP_AES;
-    else if (CPUFeatures[I] == "pmull")
-      crypto |= CAP_PMULL;
-    else if (CPUFeatures[I] == "sha1")
-      crypto |= CAP_SHA1;
-    else if (CPUFeatures[I] == "sha2")
-      crypto |= CAP_SHA2;
-#endif
-
-    if (LLVMFeatureStr != "")
-      Features[LLVMFeatureStr] = true;
-  }
-
-#if defined(__aarch64__)
-  // If we have all crypto bits we can add the feature
-  if (crypto == (CAP_AES | CAP_PMULL | CAP_SHA1 | CAP_SHA2))
-    Features["crypto"] = true;
-#endif
-
-  return true;
-}
-#else
-bool sys::getHostCPUFeatures(StringMap<bool> &Features) { return false; }
-#endif
-
-std::string sys::getProcessTriple() {
-  Triple PT(Triple::normalize(LLVM_HOST_TRIPLE));
-
-  if (sizeof(void *) == 8 && PT.isArch32Bit())
-    PT = PT.get64BitArchVariant();
-  if (sizeof(void *) == 4 && PT.isArch64Bit())
-    PT = PT.get32BitArchVariant();
-
-  return PT.str();
-}
+//===-- Host.cpp - Implement OS Host Concept --------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file implements the operating system Host concept.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/Host.h"
+#include "llvm/ADT/SmallSet.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/Config/config.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+#include <assert.h>
+#include <string.h>
+
+// Include the platform-specific parts of this class.
+#ifdef LLVM_ON_UNIX
+#include "Unix/Host.inc"
+#endif
+#ifdef LLVM_ON_WIN32
+#include "Windows/Host.inc"
+#endif
+#ifdef _MSC_VER
+#include <intrin.h>
+#endif
+#if defined(__APPLE__) && (defined(__ppc__) || defined(__powerpc__))
+#include <mach/host_info.h>
+#include <mach/mach.h>
+#include <mach/mach_host.h>
+#include <mach/machine.h>
+#endif
+
+#define DEBUG_TYPE "host-detection"
+
+//===----------------------------------------------------------------------===//
+//
+//  Implementations of the CPU detection routines
+//
+//===----------------------------------------------------------------------===//
+
+using namespace llvm;
+
+static std::unique_ptr<llvm::MemoryBuffer>
+    LLVM_ATTRIBUTE_UNUSED getProcCpuinfoContent() {
+  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Text =
+      llvm::MemoryBuffer::getFileAsStream("/proc/cpuinfo");
+  if (std::error_code EC = Text.getError()) {
+    llvm::errs() << "Can't read "
+                 << "/proc/cpuinfo: " << EC.message() << "\n";
+    return nullptr;
+  }
+  return std::move(*Text);
+}
+
+StringRef sys::detail::getHostCPUNameForPowerPC(
+    const StringRef &ProcCpuinfoContent) {
+  // Access to the Processor Version Register (PVR) on PowerPC is privileged,
+  // and so we must use an operating-system interface to determine the current
+  // processor type. On Linux, this is exposed through the /proc/cpuinfo file.
+  const char *generic = "generic";
+
+  // The cpu line is second (after the 'processor: 0' line), so if this
+  // buffer is too small then something has changed (or is wrong).
+  StringRef::const_iterator CPUInfoStart = ProcCpuinfoContent.begin();
+  StringRef::const_iterator CPUInfoEnd = ProcCpuinfoContent.end();
+
+  StringRef::const_iterator CIP = CPUInfoStart;
+
+  StringRef::const_iterator CPUStart = 0;
+  size_t CPULen = 0;
+
+  // We need to find the first line which starts with cpu, spaces, and a colon.
+  // After the colon, there may be some additional spaces and then the cpu type.
+  while (CIP < CPUInfoEnd && CPUStart == 0) {
+    if (CIP < CPUInfoEnd && *CIP == '\n')
+      ++CIP;
+
+    if (CIP < CPUInfoEnd && *CIP == 'c') {
+      ++CIP;
+      if (CIP < CPUInfoEnd && *CIP == 'p') {
+        ++CIP;
+        if (CIP < CPUInfoEnd && *CIP == 'u') {
+          ++CIP;
+          while (CIP < CPUInfoEnd && (*CIP == ' ' || *CIP == '\t'))
+            ++CIP;
+
+          if (CIP < CPUInfoEnd && *CIP == ':') {
+            ++CIP;
+            while (CIP < CPUInfoEnd && (*CIP == ' ' || *CIP == '\t'))
+              ++CIP;
+
+            if (CIP < CPUInfoEnd) {
+              CPUStart = CIP;
+              while (CIP < CPUInfoEnd && (*CIP != ' ' && *CIP != '\t' &&
+                                          *CIP != ',' && *CIP != '\n'))
+                ++CIP;
+              CPULen = CIP - CPUStart;
+            }
+          }
+        }
+      }
+    }
+
+    if (CPUStart == 0)
+      while (CIP < CPUInfoEnd && *CIP != '\n')
+        ++CIP;
+  }
+
+  if (CPUStart == 0)
+    return generic;
+
+  return StringSwitch<const char *>(StringRef(CPUStart, CPULen))
+      .Case("604e", "604e")
+      .Case("604", "604")
+      .Case("7400", "7400")
+      .Case("7410", "7400")
+      .Case("7447", "7400")
+      .Case("7455", "7450")
+      .Case("G4", "g4")
+      .Case("POWER4", "970")
+      .Case("PPC970FX", "970")
+      .Case("PPC970MP", "970")
+      .Case("G5", "g5")
+      .Case("POWER5", "g5")
+      .Case("A2", "a2")
+      .Case("POWER6", "pwr6")
+      .Case("POWER7", "pwr7")
+      .Case("POWER8", "pwr8")
+      .Case("POWER8E", "pwr8")
+      .Case("POWER8NVL", "pwr8")
+      .Case("POWER9", "pwr9")
+      .Default(generic);
+}
+
+StringRef sys::detail::getHostCPUNameForARM(
+    const StringRef &ProcCpuinfoContent) {
+  // The cpuid register on arm is not accessible from user space. On Linux,
+  // it is exposed through the /proc/cpuinfo file.
+
+  // Read 32 lines from /proc/cpuinfo, which should contain the CPU part line
+  // in all cases.
+  SmallVector<StringRef, 32> Lines;
+  ProcCpuinfoContent.split(Lines, "\n");
+
+  // Look for the CPU implementer line.
+  StringRef Implementer;
+  StringRef Hardware;
+  for (unsigned I = 0, E = Lines.size(); I != E; ++I) {
+    if (Lines[I].startswith("CPU implementer"))
+      Implementer = Lines[I].substr(15).ltrim("\t :");
+    if (Lines[I].startswith("Hardware"))
+      Hardware = Lines[I].substr(8).ltrim("\t :");
+  }
+
+  if (Implementer == "0x41") { // ARM Ltd.
+    // MSM8992/8994 may give cpu part for the core that the kernel is running on,
+    // which is undeterministic and wrong. Always return cortex-a53 for these SoC.
+    if (Hardware.endswith("MSM8994") || Hardware.endswith("MSM8996"))
+      return "cortex-a53";
+
+
+    // Look for the CPU part line.
+    for (unsigned I = 0, E = Lines.size(); I != E; ++I)
+      if (Lines[I].startswith("CPU part"))
+        // The CPU part is a 3 digit hexadecimal number with a 0x prefix. The
+        // values correspond to the "Part number" in the CP15/c0 register. The
+        // contents are specified in the various processor manuals.
+        return StringSwitch<const char *>(Lines[I].substr(8).ltrim("\t :"))
+            .Case("0x926", "arm926ej-s")
+            .Case("0xb02", "mpcore")
+            .Case("0xb36", "arm1136j-s")
+            .Case("0xb56", "arm1156t2-s")
+            .Case("0xb76", "arm1176jz-s")
+            .Case("0xc08", "cortex-a8")
+            .Case("0xc09", "cortex-a9")
+            .Case("0xc0f", "cortex-a15")
+            .Case("0xc20", "cortex-m0")
+            .Case("0xc23", "cortex-m3")
+            .Case("0xc24", "cortex-m4")
+            .Case("0xd04", "cortex-a35")
+            .Case("0xd03", "cortex-a53")
+            .Case("0xd07", "cortex-a57")
+            .Case("0xd08", "cortex-a72")
+            .Case("0xd09", "cortex-a73")
+            .Default("generic");
+  }
+
+  if (Implementer == "0x51") // Qualcomm Technologies, Inc.
+    // Look for the CPU part line.
+    for (unsigned I = 0, E = Lines.size(); I != E; ++I)
+      if (Lines[I].startswith("CPU part"))
+        // The CPU part is a 3 digit hexadecimal number with a 0x prefix. The
+        // values correspond to the "Part number" in the CP15/c0 register. The
+        // contents are specified in the various processor manuals.
+        return StringSwitch<const char *>(Lines[I].substr(8).ltrim("\t :"))
+            .Case("0x06f", "krait") // APQ8064
+            .Case("0x201", "kryo")
+            .Case("0x205", "kryo")
+            .Default("generic");
+
+  return "generic";
+}
+
+StringRef sys::detail::getHostCPUNameForS390x(
+    const StringRef &ProcCpuinfoContent) {
+  // STIDP is a privileged operation, so use /proc/cpuinfo instead.
+
+  // The "processor 0:" line comes after a fair amount of other information,
+  // including a cache breakdown, but this should be plenty.
+  SmallVector<StringRef, 32> Lines;
+  ProcCpuinfoContent.split(Lines, "\n");
+
+  // Look for the CPU features.
+  SmallVector<StringRef, 32> CPUFeatures;
+  for (unsigned I = 0, E = Lines.size(); I != E; ++I)
+    if (Lines[I].startswith("features")) {
+      size_t Pos = Lines[I].find(":");
+      if (Pos != StringRef::npos) {
+        Lines[I].drop_front(Pos + 1).split(CPUFeatures, ' ');
+        break;
+      }
+    }
+
+  // We need to check for the presence of vector support independently of
+  // the machine type, since we may only use the vector register set when
+  // supported by the kernel (and hypervisor).
+  bool HaveVectorSupport = false;
+  for (unsigned I = 0, E = CPUFeatures.size(); I != E; ++I) {
+    if (CPUFeatures[I] == "vx")
+      HaveVectorSupport = true;
+  }
+
+  // Now check the processor machine type.
+  for (unsigned I = 0, E = Lines.size(); I != E; ++I) {
+    if (Lines[I].startswith("processor ")) {
+      size_t Pos = Lines[I].find("machine = ");
+      if (Pos != StringRef::npos) {
+        Pos += sizeof("machine = ") - 1;
+        unsigned int Id;
+        if (!Lines[I].drop_front(Pos).getAsInteger(10, Id)) {
+          if (Id >= 2964 && HaveVectorSupport)
+            return "z13";
+          if (Id >= 2827)
+            return "zEC12";
+          if (Id >= 2817)
+            return "z196";
+        }
+      }
+      break;
+    }
+  }
+
+  return "generic";
+}
+
+#if defined(__i386__) || defined(_M_IX86) || \
+    defined(__x86_64__) || defined(_M_X64)
+
+enum VendorSignatures {
+  SIG_INTEL = 0x756e6547 /* Genu */,
+  SIG_AMD = 0x68747541 /* Auth */
+};
+
+enum ProcessorVendors {
+  VENDOR_INTEL = 1,
+  VENDOR_AMD,
+  VENDOR_OTHER,
+  VENDOR_MAX
+};
+
+enum ProcessorTypes {
+  INTEL_ATOM = 1,
+  INTEL_CORE2,
+  INTEL_COREI7,
+  AMDFAM10H,
+  AMDFAM15H,
+  INTEL_i386,
+  INTEL_i486,
+  INTEL_PENTIUM,
+  INTEL_PENTIUM_PRO,
+  INTEL_PENTIUM_II,
+  INTEL_PENTIUM_III,
+  INTEL_PENTIUM_IV,
+  INTEL_PENTIUM_M,
+  INTEL_CORE_DUO,
+  INTEL_XEONPHI,
+  INTEL_X86_64,
+  INTEL_NOCONA,
+  INTEL_PRESCOTT,
+  AMD_i486,
+  AMDPENTIUM,
+  AMDATHLON,
+  AMDFAM14H,
+  AMDFAM16H,
+  AMDFAM17H,
+  CPU_TYPE_MAX
+};
+
+enum ProcessorSubtypes {
+  INTEL_COREI7_NEHALEM = 1,
+  INTEL_COREI7_WESTMERE,
+  INTEL_COREI7_SANDYBRIDGE,
+  AMDFAM10H_BARCELONA,
+  AMDFAM10H_SHANGHAI,
+  AMDFAM10H_ISTANBUL,
+  AMDFAM15H_BDVER1,
+  AMDFAM15H_BDVER2,
+  INTEL_PENTIUM_MMX,
+  INTEL_CORE2_65,
+  INTEL_CORE2_45,
+  INTEL_COREI7_IVYBRIDGE,
+  INTEL_COREI7_HASWELL,
+  INTEL_COREI7_BROADWELL,
+  INTEL_COREI7_SKYLAKE,
+  INTEL_COREI7_SKYLAKE_AVX512,
+  INTEL_ATOM_BONNELL,
+  INTEL_ATOM_SILVERMONT,
+  INTEL_KNIGHTS_LANDING,
+  AMDPENTIUM_K6,
+  AMDPENTIUM_K62,
+  AMDPENTIUM_K63,
+  AMDPENTIUM_GEODE,
+  AMDATHLON_TBIRD,
+  AMDATHLON_MP,
+  AMDATHLON_XP,
+  AMDATHLON_K8SSE3,
+  AMDATHLON_OPTERON,
+  AMDATHLON_FX,
+  AMDATHLON_64,
+  AMD_BTVER1,
+  AMD_BTVER2,
+  AMDFAM15H_BDVER3,
+  AMDFAM15H_BDVER4,
+  AMDFAM17H_ZNVER1,
+  CPU_SUBTYPE_MAX
+};
+
+enum ProcessorFeatures {
+  FEATURE_CMOV = 0,
+  FEATURE_MMX,
+  FEATURE_POPCNT,
+  FEATURE_SSE,
+  FEATURE_SSE2,
+  FEATURE_SSE3,
+  FEATURE_SSSE3,
+  FEATURE_SSE4_1,
+  FEATURE_SSE4_2,
+  FEATURE_AVX,
+  FEATURE_AVX2,
+  FEATURE_AVX512,
+  FEATURE_AVX512SAVE,
+  FEATURE_MOVBE,
+  FEATURE_ADX,
+  FEATURE_EM64T
+};
+
+// The check below for i386 was copied from clang's cpuid.h (__get_cpuid_max).
+// Check motivated by bug reports for OpenSSL crashing on CPUs without CPUID
+// support. Consequently, for i386, the presence of CPUID is checked first
+// via the corresponding eflags bit.
+// Removal of cpuid.h header motivated by PR30384
+// Header cpuid.h and method __get_cpuid_max are not used in llvm, clang, openmp
+// or test-suite, but are used in external projects e.g. libstdcxx
+static bool isCpuIdSupported() {
+#if defined(__GNUC__) || defined(__clang__)
+#if defined(__i386__)
+  int __cpuid_supported;
+  __asm__("  pushfl\n"
+          "  popl   %%eax\n"
+          "  movl   %%eax,%%ecx\n"
+          "  xorl   $0x00200000,%%eax\n"
+          "  pushl  %%eax\n"
+          "  popfl\n"
+          "  pushfl\n"
+          "  popl   %%eax\n"
+          "  movl   $0,%0\n"
+          "  cmpl   %%eax,%%ecx\n"
+          "  je     1f\n"
+          "  movl   $1,%0\n"
+          "1:"
+          : "=r"(__cpuid_supported)
+          :
+          : "eax", "ecx");
+  if (!__cpuid_supported)
+    return false;
+#endif
+  return true;
+#endif
+  return true;
+}
+
+/// getX86CpuIDAndInfo - Execute the specified cpuid and return the 4 values in
+/// the specified arguments.  If we can't run cpuid on the host, return true.
+static bool getX86CpuIDAndInfo(unsigned value, unsigned *rEAX, unsigned *rEBX,
+                               unsigned *rECX, unsigned *rEDX) {
+#if defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER)
+#if defined(__GNUC__) || defined(__clang__)
+#if defined(__x86_64__)
+  // gcc doesn't know cpuid would clobber ebx/rbx. Preserve it manually.
+  // FIXME: should we save this for Clang?
+  __asm__("movq\t%%rbx, %%rsi\n\t"
+          "cpuid\n\t"
+          "xchgq\t%%rbx, %%rsi\n\t"
+          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
+          : "a"(value));
+#elif defined(__i386__)
+  __asm__("movl\t%%ebx, %%esi\n\t"
+          "cpuid\n\t"
+          "xchgl\t%%ebx, %%esi\n\t"
+          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
+          : "a"(value));
+#else
+  assert(0 && "This method is defined only for x86.");
+#endif
+#elif defined(_MSC_VER)
+  // The MSVC intrinsic is portable across x86 and x64.
+  int registers[4];
+  __cpuid(registers, value);
+  *rEAX = registers[0];
+  *rEBX = registers[1];
+  *rECX = registers[2];
+  *rEDX = registers[3];
+#endif
+  return false;
+#else
+  return true;
+#endif
+}
+
+/// getX86CpuIDAndInfoEx - Execute the specified cpuid with subleaf and return
+/// the 4 values in the specified arguments.  If we can't run cpuid on the host,
+/// return true.
+static bool getX86CpuIDAndInfoEx(unsigned value, unsigned subleaf,
+                                 unsigned *rEAX, unsigned *rEBX, unsigned *rECX,
+                                 unsigned *rEDX) {
+#if defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER)
+#if defined(__x86_64__) || defined(_M_X64)
+#if defined(__GNUC__) || defined(__clang__)
+  // gcc doesn't know cpuid would clobber ebx/rbx. Preseve it manually.
+  // FIXME: should we save this for Clang?
+  __asm__("movq\t%%rbx, %%rsi\n\t"
+          "cpuid\n\t"
+          "xchgq\t%%rbx, %%rsi\n\t"
+          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
+          : "a"(value), "c"(subleaf));
+#elif defined(_MSC_VER)
+  int registers[4];
+  __cpuidex(registers, value, subleaf);
+  *rEAX = registers[0];
+  *rEBX = registers[1];
+  *rECX = registers[2];
+  *rEDX = registers[3];
+#endif
+#elif defined(__i386__) || defined(_M_IX86)
+#if defined(__GNUC__) || defined(__clang__)
+  __asm__("movl\t%%ebx, %%esi\n\t"
+          "cpuid\n\t"
+          "xchgl\t%%ebx, %%esi\n\t"
+          : "=a"(*rEAX), "=S"(*rEBX), "=c"(*rECX), "=d"(*rEDX)
+          : "a"(value), "c"(subleaf));
+#elif defined(_MSC_VER)
+  __asm {
+      mov   eax,value
+      mov   ecx,subleaf
+      cpuid
+      mov   esi,rEAX
+      mov   dword ptr [esi],eax
+      mov   esi,rEBX
+      mov   dword ptr [esi],ebx
+      mov   esi,rECX
+      mov   dword ptr [esi],ecx
+      mov   esi,rEDX
+      mov   dword ptr [esi],edx
+  }
+#endif
+#else
+  assert(0 && "This method is defined only for x86.");
+#endif
+  return false;
+#else
+  return true;
+#endif
+}
+
+static bool getX86XCR0(unsigned *rEAX, unsigned *rEDX) {
+#if defined(__GNUC__) || defined(__clang__)
+  // Check xgetbv; this uses a .byte sequence instead of the instruction
+  // directly because older assemblers do not include support for xgetbv and
+  // there is no easy way to conditionally compile based on the assembler used.
+  __asm__(".byte 0x0f, 0x01, 0xd0" : "=a"(*rEAX), "=d"(*rEDX) : "c"(0));
+  return false;
+#elif defined(_MSC_FULL_VER) && defined(_XCR_XFEATURE_ENABLED_MASK)
+  unsigned long long Result = _xgetbv(_XCR_XFEATURE_ENABLED_MASK);
+  *rEAX = Result;
+  *rEDX = Result >> 32;
+  return false;
+#else
+  return true;
+#endif
+}
+
+static void detectX86FamilyModel(unsigned EAX, unsigned *Family,
+                                 unsigned *Model) {
+  *Family = (EAX >> 8) & 0xf; // Bits 8 - 11
+  *Model = (EAX >> 4) & 0xf;  // Bits 4 - 7
+  if (*Family == 6 || *Family == 0xf) {
+    if (*Family == 0xf)
+      // Examine extended family ID if family ID is F.
+      *Family += (EAX >> 20) & 0xff; // Bits 20 - 27
+    // Examine extended model ID if family ID is 6 or F.
+    *Model += ((EAX >> 16) & 0xf) << 4; // Bits 16 - 19
+  }
+}
+
+static void
+getIntelProcessorTypeAndSubtype(unsigned int Family, unsigned int Model,
+                                unsigned int Brand_id, unsigned int Features,
+                                unsigned *Type, unsigned *Subtype) {
+  if (Brand_id != 0)
+    return;
+  switch (Family) {
+  case 3:
+    *Type = INTEL_i386;
+    break;
+  case 4:
+    switch (Model) {
+    case 0: // Intel486 DX processors
+    case 1: // Intel486 DX processors
+    case 2: // Intel486 SX processors
+    case 3: // Intel487 processors, IntelDX2 OverDrive processors,
+            // IntelDX2 processors
+    case 4: // Intel486 SL processor
+    case 5: // IntelSX2 processors
+    case 7: // Write-Back Enhanced IntelDX2 processors
+    case 8: // IntelDX4 OverDrive processors, IntelDX4 processors
+    default:
+      *Type = INTEL_i486;
+      break;
+    }
+    break;
+  case 5:
+    switch (Model) {
+    case 1: // Pentium OverDrive processor for Pentium processor (60, 66),
+            // Pentium processors (60, 66)
+    case 2: // Pentium OverDrive processor for Pentium processor (75, 90,
+            // 100, 120, 133), Pentium processors (75, 90, 100, 120, 133,
+            // 150, 166, 200)
+    case 3: // Pentium OverDrive processors for Intel486 processor-based
+            // systems
+      *Type = INTEL_PENTIUM;
+      break;
+    case 4: // Pentium OverDrive processor with MMX technology for Pentium
+            // processor (75, 90, 100, 120, 133), Pentium processor with
+            // MMX technology (166, 200)
+      *Type = INTEL_PENTIUM;
+      *Subtype = INTEL_PENTIUM_MMX;
+      break;
+    default:
+      *Type = INTEL_PENTIUM;
+      break;
+    }
+    break;
+  case 6:
+    switch (Model) {
+    case 0x01: // Pentium Pro processor
+      *Type = INTEL_PENTIUM_PRO;
+      break;
+    case 0x03: // Intel Pentium II OverDrive processor, Pentium II processor,
+               // model 03
+    case 0x05: // Pentium II processor, model 05, Pentium II Xeon processor,
+               // model 05, and Intel Celeron processor, model 05
+    case 0x06: // Celeron processor, model 06
+      *Type = INTEL_PENTIUM_II;
+      break;
+    case 0x07: // Pentium III processor, model 07, and Pentium III Xeon
+               // processor, model 07
+    case 0x08: // Pentium III processor, model 08, Pentium III Xeon processor,
+               // model 08, and Celeron processor, model 08
+    case 0x0a: // Pentium III Xeon processor, model 0Ah
+    case 0x0b: // Pentium III processor, model 0Bh
+      *Type = INTEL_PENTIUM_III;
+      break;
+    case 0x09: // Intel Pentium M processor, Intel Celeron M processor model 09.
+    case 0x0d: // Intel Pentium M processor, Intel Celeron M processor, model
+               // 0Dh. All processors are manufactured using the 90 nm process.
+    case 0x15: // Intel EP80579 Integrated Processor and Intel EP80579
+               // Integrated Processor with Intel QuickAssist Technology
+      *Type = INTEL_PENTIUM_M;
+      break;
+    case 0x0e: // Intel Core Duo processor, Intel Core Solo processor, model
+               // 0Eh. All processors are manufactured using the 65 nm process.
+      *Type = INTEL_CORE_DUO;
+      break;   // yonah
+    case 0x0f: // Intel Core 2 Duo processor, Intel Core 2 Duo mobile
+               // processor, Intel Core 2 Quad processor, Intel Core 2 Quad
+               // mobile processor, Intel Core 2 Extreme processor, Intel
+               // Pentium Dual-Core processor, Intel Xeon processor, model
+               // 0Fh. All processors are manufactured using the 65 nm process.
+    case 0x16: // Intel Celeron processor model 16h. All processors are
+               // manufactured using the 65 nm process
+      *Type = INTEL_CORE2; // "core2"
+      *Subtype = INTEL_CORE2_65;
+      break;
+    case 0x17: // Intel Core 2 Extreme processor, Intel Xeon processor, model
+               // 17h. All processors are manufactured using the 45 nm process.
+               //
+               // 45nm: Penryn , Wolfdale, Yorkfield (XE)
+    case 0x1d: // Intel Xeon processor MP. All processors are manufactured using
+               // the 45 nm process.
+      *Type = INTEL_CORE2; // "penryn"
+      *Subtype = INTEL_CORE2_45;
+      break;
+    case 0x1a: // Intel Core i7 processor and Intel Xeon processor. All
+               // processors are manufactured using the 45 nm process.
+    case 0x1e: // Intel(R) Core(TM) i7 CPU         870  @ 2.93GHz.
+               // As found in a Summer 2010 model iMac.
+    case 0x1f:
+    case 0x2e:             // Nehalem EX
+      *Type = INTEL_COREI7; // "nehalem"
+      *Subtype = INTEL_COREI7_NEHALEM;
+      break;
+    case 0x25: // Intel Core i7, laptop version.
+    case 0x2c: // Intel Core i7 processor and Intel Xeon processor. All
+               // processors are manufactured using the 32 nm process.
+    case 0x2f: // Westmere EX
+      *Type = INTEL_COREI7; // "westmere"
+      *Subtype = INTEL_COREI7_WESTMERE;
+      break;
+    case 0x2a: // Intel Core i7 processor. All processors are manufactured
+               // using the 32 nm process.
+    case 0x2d:
+      *Type = INTEL_COREI7; //"sandybridge"
+      *Subtype = INTEL_COREI7_SANDYBRIDGE;
+      break;
+    case 0x3a:
+    case 0x3e:             // Ivy Bridge EP
+      *Type = INTEL_COREI7; // "ivybridge"
+      *Subtype = INTEL_COREI7_IVYBRIDGE;
+      break;
+
+    // Haswell:
+    case 0x3c:
+    case 0x3f:
+    case 0x45:
+    case 0x46:
+      *Type = INTEL_COREI7; // "haswell"
+      *Subtype = INTEL_COREI7_HASWELL;
+      break;
+
+    // Broadwell:
+    case 0x3d:
+    case 0x47:
+    case 0x4f:
+    case 0x56:
+      *Type = INTEL_COREI7; // "broadwell"
+      *Subtype = INTEL_COREI7_BROADWELL;
+      break;
+
+    // Skylake:
+    case 0x4e: // Skylake mobile
+    case 0x5e: // Skylake desktop
+    case 0x8e: // Kaby Lake mobile
+    case 0x9e: // Kaby Lake desktop
+      *Type = INTEL_COREI7; // "skylake"
+      *Subtype = INTEL_COREI7_SKYLAKE;
+      break;
+
+    // Skylake Xeon:
+    case 0x55:
+      *Type = INTEL_COREI7;
+      // Check that we really have AVX512
+      if (Features & (1 << FEATURE_AVX512)) {
+        *Subtype = INTEL_COREI7_SKYLAKE_AVX512; // "skylake-avx512"
+      } else {
+        *Subtype = INTEL_COREI7_SKYLAKE; // "skylake"
+      }
+      break;
+
+    case 0x1c: // Most 45 nm Intel Atom processors
+    case 0x26: // 45 nm Atom Lincroft
+    case 0x27: // 32 nm Atom Medfield
+    case 0x35: // 32 nm Atom Midview
+    case 0x36: // 32 nm Atom Midview
+      *Type = INTEL_ATOM;
+      *Subtype = INTEL_ATOM_BONNELL;
+      break; // "bonnell"
+
+    // Atom Silvermont codes from the Intel software optimization guide.
+    case 0x37:
+    case 0x4a:
+    case 0x4d:
+    case 0x5a:
+    case 0x5d:
+    case 0x4c: // really airmont
+      *Type = INTEL_ATOM;
+      *Subtype = INTEL_ATOM_SILVERMONT;
+      break; // "silvermont"
+
+    case 0x57:
+      *Type = INTEL_XEONPHI; // knl
+      *Subtype = INTEL_KNIGHTS_LANDING;
+      break;
+
+    default: // Unknown family 6 CPU, try to guess.
+      if (Features & (1 << FEATURE_AVX512)) {
+        *Type = INTEL_XEONPHI; // knl
+        *Subtype = INTEL_KNIGHTS_LANDING;
+        break;
+      }
+      if (Features & (1 << FEATURE_ADX)) {
+        *Type = INTEL_COREI7;
+        *Subtype = INTEL_COREI7_BROADWELL;
+        break;
+      }
+      if (Features & (1 << FEATURE_AVX2)) {
+        *Type = INTEL_COREI7;
+        *Subtype = INTEL_COREI7_HASWELL;
+        break;
+      }
+      if (Features & (1 << FEATURE_AVX)) {
+        *Type = INTEL_COREI7;
+        *Subtype = INTEL_COREI7_SANDYBRIDGE;
+        break;
+      }
+      if (Features & (1 << FEATURE_SSE4_2)) {
+        if (Features & (1 << FEATURE_MOVBE)) {
+          *Type = INTEL_ATOM;
+          *Subtype = INTEL_ATOM_SILVERMONT;
+        } else {
+          *Type = INTEL_COREI7;
+          *Subtype = INTEL_COREI7_NEHALEM;
+        }
+        break;
+      }
+      if (Features & (1 << FEATURE_SSE4_1)) {
+        *Type = INTEL_CORE2; // "penryn"
+        *Subtype = INTEL_CORE2_45;
+        break;
+      }
+      if (Features & (1 << FEATURE_SSSE3)) {
+        if (Features & (1 << FEATURE_MOVBE)) {
+          *Type = INTEL_ATOM;
+          *Subtype = INTEL_ATOM_BONNELL; // "bonnell"
+        } else {
+          *Type = INTEL_CORE2; // "core2"
+          *Subtype = INTEL_CORE2_65;
+        }
+        break;
+      }
+      if (Features & (1 << FEATURE_EM64T)) {
+        *Type = INTEL_X86_64;
+        break; // x86-64
+      }
+      if (Features & (1 << FEATURE_SSE2)) {
+        *Type = INTEL_PENTIUM_M;
+        break;
+      }
+      if (Features & (1 << FEATURE_SSE)) {
+        *Type = INTEL_PENTIUM_III;
+        break;
+      }
+      if (Features & (1 << FEATURE_MMX)) {
+        *Type = INTEL_PENTIUM_II;
+        break;
+      }
+      *Type = INTEL_PENTIUM_PRO;
+      break;
+    }
+    break;
+  case 15: {
+    switch (Model) {
+    case 0: // Pentium 4 processor, Intel Xeon processor. All processors are
+            // model 00h and manufactured using the 0.18 micron process.
+    case 1: // Pentium 4 processor, Intel Xeon processor, Intel Xeon
+            // processor MP, and Intel Celeron processor. All processors are
+            // model 01h and manufactured using the 0.18 micron process.
+    case 2: // Pentium 4 processor, Mobile Intel Pentium 4 processor - M,
+            // Intel Xeon processor, Intel Xeon processor MP, Intel Celeron
+            // processor, and Mobile Intel Celeron processor. All processors
+            // are model 02h and manufactured using the 0.13 micron process.
+      *Type =
+          ((Features & (1 << FEATURE_EM64T)) ? INTEL_X86_64 : INTEL_PENTIUM_IV);
+      break;
+
+    case 3: // Pentium 4 processor, Intel Xeon processor, Intel Celeron D
+            // processor. All processors are model 03h and manufactured using
+            // the 90 nm process.
+    case 4: // Pentium 4 processor, Pentium 4 processor Extreme Edition,
+            // Pentium D processor, Intel Xeon processor, Intel Xeon
+            // processor MP, Intel Celeron D processor. All processors are
+            // model 04h and manufactured using the 90 nm process.
+    case 6: // Pentium 4 processor, Pentium D processor, Pentium processor
+            // Extreme Edition, Intel Xeon processor, Intel Xeon processor
+            // MP, Intel Celeron D processor. All processors are model 06h
+            // and manufactured using the 65 nm process.
+      *Type =
+          ((Features & (1 << FEATURE_EM64T)) ? INTEL_NOCONA : INTEL_PRESCOTT);
+      break;
+
+    default:
+      *Type =
+          ((Features & (1 << FEATURE_EM64T)) ? INTEL_X86_64 : INTEL_PENTIUM_IV);
+      break;
+    }
+    break;
+  }
+  default:
+    break; /*"generic"*/
+  }
+}
+
+static void getAMDProcessorTypeAndSubtype(unsigned int Family,
+                                          unsigned int Model,
+                                          unsigned int Features,
+                                          unsigned *Type,
+                                          unsigned *Subtype) {
+  // FIXME: this poorly matches the generated SubtargetFeatureKV table.  There
+  // appears to be no way to generate the wide variety of AMD-specific targets
+  // from the information returned from CPUID.
+  switch (Family) {
+  case 4:
+    *Type = AMD_i486;
+    break;
+  case 5:
+    *Type = AMDPENTIUM;
+    switch (Model) {
+    case 6:
+    case 7:
+      *Subtype = AMDPENTIUM_K6;
+      break; // "k6"
+    case 8:
+      *Subtype = AMDPENTIUM_K62;
+      break; // "k6-2"
+    case 9:
+    case 13:
+      *Subtype = AMDPENTIUM_K63;
+      break; // "k6-3"
+    case 10:
+      *Subtype = AMDPENTIUM_GEODE;
+      break; // "geode"
+    }
+    break;
+  case 6:
+    *Type = AMDATHLON;
+    switch (Model) {
+    case 4:
+      *Subtype = AMDATHLON_TBIRD;
+      break; // "athlon-tbird"
+    case 6:
+    case 7:
+    case 8:
+      *Subtype = AMDATHLON_MP;
+      break; // "athlon-mp"
+    case 10:
+      *Subtype = AMDATHLON_XP;
+      break; // "athlon-xp"
+    }
+    break;
+  case 15:
+    *Type = AMDATHLON;
+    if (Features & (1 << FEATURE_SSE3)) {
+      *Subtype = AMDATHLON_K8SSE3;
+      break; // "k8-sse3"
+    }
+    switch (Model) {
+    case 1:
+      *Subtype = AMDATHLON_OPTERON;
+      break; // "opteron"
+    case 5:
+      *Subtype = AMDATHLON_FX;
+      break; // "athlon-fx"; also opteron
+    default:
+      *Subtype = AMDATHLON_64;
+      break; // "athlon64"
+    }
+    break;
+  case 16:
+    *Type = AMDFAM10H; // "amdfam10"
+    switch (Model) {
+    case 2:
+      *Subtype = AMDFAM10H_BARCELONA;
+      break;
+    case 4:
+      *Subtype = AMDFAM10H_SHANGHAI;
+      break;
+    case 8:
+      *Subtype = AMDFAM10H_ISTANBUL;
+      break;
+    }
+    break;
+  case 20:
+    *Type = AMDFAM14H;
+    *Subtype = AMD_BTVER1;
+    break; // "btver1";
+  case 21:
+    *Type = AMDFAM15H;
+    if (!(Features &
+          (1 << FEATURE_AVX))) { // If no AVX support, provide a sane fallback.
+      *Subtype = AMD_BTVER1;
+      break; // "btver1"
+    }
+    if (Model >= 0x50 && Model <= 0x6f) {
+      *Subtype = AMDFAM15H_BDVER4;
+      break; // "bdver4"; 50h-6Fh: Excavator
+    }
+    if (Model >= 0x30 && Model <= 0x3f) {
+      *Subtype = AMDFAM15H_BDVER3;
+      break; // "bdver3"; 30h-3Fh: Steamroller
+    }
+    if (Model >= 0x10 && Model <= 0x1f) {
+      *Subtype = AMDFAM15H_BDVER2;
+      break; // "bdver2"; 10h-1Fh: Piledriver
+    }
+    if (Model <= 0x0f) {
+      *Subtype = AMDFAM15H_BDVER1;
+      break; // "bdver1"; 00h-0Fh: Bulldozer
+    }
+    break;
+  case 22:
+    *Type = AMDFAM16H;
+    if (!(Features &
+          (1 << FEATURE_AVX))) { // If no AVX support provide a sane fallback.
+      *Subtype = AMD_BTVER1;
+      break; // "btver1";
+    }
+    *Subtype = AMD_BTVER2;
+    break; // "btver2"
+  case 23:
+    *Type = AMDFAM17H;
+    if (Features & (1 << FEATURE_ADX)) {
+      *Subtype = AMDFAM17H_ZNVER1;
+      break; // "znver1"
+    }
+    *Subtype =  AMD_BTVER1;
+    break;
+  default:
+    break; // "generic"
+  }
+}
+
+static unsigned getAvailableFeatures(unsigned int ECX, unsigned int EDX,
+                                     unsigned MaxLeaf) {
+  unsigned Features = 0;
+  unsigned int EAX, EBX;
+  Features |= (((EDX >> 23) & 1) << FEATURE_MMX);
+  Features |= (((EDX >> 25) & 1) << FEATURE_SSE);
+  Features |= (((EDX >> 26) & 1) << FEATURE_SSE2);
+  Features |= (((ECX >> 0) & 1) << FEATURE_SSE3);
+  Features |= (((ECX >> 9) & 1) << FEATURE_SSSE3);
+  Features |= (((ECX >> 19) & 1) << FEATURE_SSE4_1);
+  Features |= (((ECX >> 20) & 1) << FEATURE_SSE4_2);
+  Features |= (((ECX >> 22) & 1) << FEATURE_MOVBE);
+
+  // If CPUID indicates support for XSAVE, XRESTORE and AVX, and XGETBV
+  // indicates that the AVX registers will be saved and restored on context
+  // switch, then we have full AVX support.
+  const unsigned AVXBits = (1 << 27) | (1 << 28);
+  bool HasAVX = ((ECX & AVXBits) == AVXBits) && !getX86XCR0(&EAX, &EDX) &&
+                ((EAX & 0x6) == 0x6);
+  bool HasAVX512Save = HasAVX && ((EAX & 0xe0) == 0xe0);
+  bool HasLeaf7 =
+      MaxLeaf >= 0x7 && !getX86CpuIDAndInfoEx(0x7, 0x0, &EAX, &EBX, &ECX, &EDX);
+  bool HasADX = HasLeaf7 && ((EBX >> 19) & 1);
+  bool HasAVX2 = HasAVX && HasLeaf7 && (EBX & 0x20);
+  bool HasAVX512 = HasLeaf7 && HasAVX512Save && ((EBX >> 16) & 1);
+  Features |= (HasAVX << FEATURE_AVX);
+  Features |= (HasAVX2 << FEATURE_AVX2);
+  Features |= (HasAVX512 << FEATURE_AVX512);
+  Features |= (HasAVX512Save << FEATURE_AVX512SAVE);
+  Features |= (HasADX << FEATURE_ADX);
+
+  getX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX);
+  Features |= (((EDX >> 29) & 0x1) << FEATURE_EM64T);
+  return Features;
+}
+
+StringRef sys::getHostCPUName() {
+  unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
+  unsigned MaxLeaf, Vendor;
+
+#if defined(__GNUC__) || defined(__clang__)
+  //FIXME: include cpuid.h from clang or copy __get_cpuid_max here
+  // and simplify it to not invoke __cpuid (like cpu_model.c in
+  // compiler-rt/lib/builtins/cpu_model.c?
+  // Opting for the second option.
+  if(!isCpuIdSupported())
+    return "generic";
+#endif
+  if (getX86CpuIDAndInfo(0, &MaxLeaf, &Vendor, &ECX, &EDX))
+    return "generic";
+  if (getX86CpuIDAndInfo(0x1, &EAX, &EBX, &ECX, &EDX))
+    return "generic";
+
+  unsigned Brand_id = EBX & 0xff;
+  unsigned Family = 0, Model = 0;
+  unsigned Features = 0;
+  detectX86FamilyModel(EAX, &Family, &Model);
+  Features = getAvailableFeatures(ECX, EDX, MaxLeaf);
+
+  unsigned Type;
+  unsigned Subtype;
+
+  if (Vendor == SIG_INTEL) {
+    getIntelProcessorTypeAndSubtype(Family, Model, Brand_id, Features, &Type,
+                                    &Subtype);
+    switch (Type) {
+    case INTEL_i386:
+      return "i386";
+    case INTEL_i486:
+      return "i486";
+    case INTEL_PENTIUM:
+      if (Subtype == INTEL_PENTIUM_MMX)
+        return "pentium-mmx";
+      return "pentium";
+    case INTEL_PENTIUM_PRO:
+      return "pentiumpro";
+    case INTEL_PENTIUM_II:
+      return "pentium2";
+    case INTEL_PENTIUM_III:
+      return "pentium3";
+    case INTEL_PENTIUM_IV:
+      return "pentium4";
+    case INTEL_PENTIUM_M:
+      return "pentium-m";
+    case INTEL_CORE_DUO:
+      return "yonah";
+    case INTEL_CORE2:
+      switch (Subtype) {
+      case INTEL_CORE2_65:
+        return "core2";
+      case INTEL_CORE2_45:
+        return "penryn";
+      default:
+        return "core2";
+      }
+    case INTEL_COREI7:
+      switch (Subtype) {
+      case INTEL_COREI7_NEHALEM:
+        return "nehalem";
+      case INTEL_COREI7_WESTMERE:
+        return "westmere";
+      case INTEL_COREI7_SANDYBRIDGE:
+        return "sandybridge";
+      case INTEL_COREI7_IVYBRIDGE:
+        return "ivybridge";
+      case INTEL_COREI7_HASWELL:
+        return "haswell";
+      case INTEL_COREI7_BROADWELL:
+        return "broadwell";
+      case INTEL_COREI7_SKYLAKE:
+        return "skylake";
+      case INTEL_COREI7_SKYLAKE_AVX512:
+        return "skylake-avx512";
+      default:
+        return "corei7";
+      }
+    case INTEL_ATOM:
+      switch (Subtype) {
+      case INTEL_ATOM_BONNELL:
+        return "bonnell";
+      case INTEL_ATOM_SILVERMONT:
+        return "silvermont";
+      default:
+        return "atom";
+      }
+    case INTEL_XEONPHI:
+      return "knl"; /*update for more variants added*/
+    case INTEL_X86_64:
+      return "x86-64";
+    case INTEL_NOCONA:
+      return "nocona";
+    case INTEL_PRESCOTT:
+      return "prescott";
+    default:
+      return "generic";
+    }
+  } else if (Vendor == SIG_AMD) {
+    getAMDProcessorTypeAndSubtype(Family, Model, Features, &Type, &Subtype);
+    switch (Type) {
+    case AMD_i486:
+      return "i486";
+    case AMDPENTIUM:
+      switch (Subtype) {
+      case AMDPENTIUM_K6:
+        return "k6";
+      case AMDPENTIUM_K62:
+        return "k6-2";
+      case AMDPENTIUM_K63:
+        return "k6-3";
+      case AMDPENTIUM_GEODE:
+        return "geode";
+      default:
+        return "pentium";
+      }
+    case AMDATHLON:
+      switch (Subtype) {
+      case AMDATHLON_TBIRD:
+        return "athlon-tbird";
+      case AMDATHLON_MP:
+        return "athlon-mp";
+      case AMDATHLON_XP:
+        return "athlon-xp";
+      case AMDATHLON_K8SSE3:
+        return "k8-sse3";
+      case AMDATHLON_OPTERON:
+        return "opteron";
+      case AMDATHLON_FX:
+        return "athlon-fx";
+      case AMDATHLON_64:
+        return "athlon64";
+      default:
+        return "athlon";
+      }
+    case AMDFAM10H:
+      if(Subtype == AMDFAM10H_BARCELONA)
+        return "barcelona";
+      return "amdfam10";
+    case AMDFAM14H:
+      return "btver1";
+    case AMDFAM15H:
+      switch (Subtype) {
+      case AMDFAM15H_BDVER1:
+        return "bdver1";
+      case AMDFAM15H_BDVER2:
+        return "bdver2";
+      case AMDFAM15H_BDVER3:
+        return "bdver3";
+      case AMDFAM15H_BDVER4:
+        return "bdver4";
+      case AMD_BTVER1:
+        return "btver1";
+      default:
+        return "amdfam15";
+      }
+    case AMDFAM16H:
+      switch (Subtype) {
+      case AMD_BTVER1:
+        return "btver1";
+      case AMD_BTVER2:
+        return "btver2";
+      default:
+        return "amdfam16";
+      }
+    case AMDFAM17H:
+      switch (Subtype) {
+      case AMD_BTVER1:
+        return "btver1";
+      case AMDFAM17H_ZNVER1:
+        return "znver1";
+      default:
+        return "amdfam17";
+      }
+    default:
+      return "generic";
+    }
+  }
+  return "generic";
+}
+
+#elif defined(__APPLE__) && (defined(__ppc__) || defined(__powerpc__))
+StringRef sys::getHostCPUName() {
+  host_basic_info_data_t hostInfo;
+  mach_msg_type_number_t infoCount;
+
+  infoCount = HOST_BASIC_INFO_COUNT;
+  host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)&hostInfo,
+            &infoCount);
+
+  if (hostInfo.cpu_type != CPU_TYPE_POWERPC)
+    return "generic";
+
+  switch (hostInfo.cpu_subtype) {
+  case CPU_SUBTYPE_POWERPC_601:
+    return "601";
+  case CPU_SUBTYPE_POWERPC_602:
+    return "602";
+  case CPU_SUBTYPE_POWERPC_603:
+    return "603";
+  case CPU_SUBTYPE_POWERPC_603e:
+    return "603e";
+  case CPU_SUBTYPE_POWERPC_603ev:
+    return "603ev";
+  case CPU_SUBTYPE_POWERPC_604:
+    return "604";
+  case CPU_SUBTYPE_POWERPC_604e:
+    return "604e";
+  case CPU_SUBTYPE_POWERPC_620:
+    return "620";
+  case CPU_SUBTYPE_POWERPC_750:
+    return "750";
+  case CPU_SUBTYPE_POWERPC_7400:
+    return "7400";
+  case CPU_SUBTYPE_POWERPC_7450:
+    return "7450";
+  case CPU_SUBTYPE_POWERPC_970:
+    return "970";
+  default:;
+  }
+
+  return "generic";
+}
+#elif defined(__linux__) && (defined(__ppc__) || defined(__powerpc__))
+StringRef sys::getHostCPUName() {
+  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
+  const StringRef& Content = P ? P->getBuffer() : "";
+  return detail::getHostCPUNameForPowerPC(Content);
+}
+#elif defined(__linux__) && (defined(__arm__) || defined(__aarch64__))
+StringRef sys::getHostCPUName() {
+  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
+  const StringRef& Content = P ? P->getBuffer() : "";
+  return detail::getHostCPUNameForARM(Content);
+}
+#elif defined(__linux__) && defined(__s390x__)
+StringRef sys::getHostCPUName() {
+  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
+  const StringRef& Content = P ? P->getBuffer() : "";
+  return detail::getHostCPUNameForS390x(Content);
+}
+#else
+StringRef sys::getHostCPUName() { return "generic"; }
+#endif
+
+#if defined(__linux__) && defined(__x86_64__)
+// On Linux, the number of physical cores can be computed from /proc/cpuinfo,
+// using the number of unique physical/core id pairs. The following
+// implementation reads the /proc/cpuinfo format on an x86_64 system.
+static int computeHostNumPhysicalCores() {
+  // Read /proc/cpuinfo as a stream (until EOF reached). It cannot be
+  // mmapped because it appears to have 0 size.
+  llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Text =
+      llvm::MemoryBuffer::getFileAsStream("/proc/cpuinfo");
+  if (std::error_code EC = Text.getError()) {
+    llvm::errs() << "Can't read "
+                 << "/proc/cpuinfo: " << EC.message() << "\n";
+    return -1;
+  }
+  SmallVector<StringRef, 8> strs;
+  (*Text)->getBuffer().split(strs, "\n", /*MaxSplit=*/-1,
+                             /*KeepEmpty=*/false);
+  int CurPhysicalId = -1;
+  int CurCoreId = -1;
+  SmallSet<std::pair<int, int>, 32> UniqueItems;
+  for (auto &Line : strs) {
+    Line = Line.trim();
+    if (!Line.startswith("physical id") && !Line.startswith("core id"))
+      continue;
+    std::pair<StringRef, StringRef> Data = Line.split(':');
+    auto Name = Data.first.trim();
+    auto Val = Data.second.trim();
+    if (Name == "physical id") {
+      assert(CurPhysicalId == -1 &&
+             "Expected a core id before seeing another physical id");
+      Val.getAsInteger(10, CurPhysicalId);
+    }
+    if (Name == "core id") {
+      assert(CurCoreId == -1 &&
+             "Expected a physical id before seeing another core id");
+      Val.getAsInteger(10, CurCoreId);
+    }
+    if (CurPhysicalId != -1 && CurCoreId != -1) {
+      UniqueItems.insert(std::make_pair(CurPhysicalId, CurCoreId));
+      CurPhysicalId = -1;
+      CurCoreId = -1;
+    }
+  }
+  return UniqueItems.size();
+}
+#elif defined(__APPLE__) && defined(__x86_64__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+
+// Gets the number of *physical cores* on the machine.
+static int computeHostNumPhysicalCores() {
+  uint32_t count;
+  size_t len = sizeof(count);
+  sysctlbyname("hw.physicalcpu", &count, &len, NULL, 0);
+  if (count < 1) {
+    int nm[2];
+    nm[0] = CTL_HW;
+    nm[1] = HW_AVAILCPU;
+    sysctl(nm, 2, &count, &len, NULL, 0);
+    if (count < 1)
+      return -1;
+  }
+  return count;
+}
+#else
+// On other systems, return -1 to indicate unknown.
+static int computeHostNumPhysicalCores() { return -1; }
+#endif
+
+int sys::getHostNumPhysicalCores() {
+  static int NumCores = computeHostNumPhysicalCores();
+  return NumCores;
+}
+
+#if defined(__i386__) || defined(_M_IX86) || \
+    defined(__x86_64__) || defined(_M_X64)
+bool sys::getHostCPUFeatures(StringMap<bool> &Features) {
+  unsigned EAX = 0, EBX = 0, ECX = 0, EDX = 0;
+  unsigned MaxLevel;
+  union {
+    unsigned u[3];
+    char c[12];
+  } text;
+
+  if (getX86CpuIDAndInfo(0, &MaxLevel, text.u + 0, text.u + 2, text.u + 1) ||
+      MaxLevel < 1)
+    return false;
+
+  getX86CpuIDAndInfo(1, &EAX, &EBX, &ECX, &EDX);
+
+  Features["cmov"] = (EDX >> 15) & 1;
+  Features["mmx"] = (EDX >> 23) & 1;
+  Features["sse"] = (EDX >> 25) & 1;
+  Features["sse2"] = (EDX >> 26) & 1;
+  Features["sse3"] = (ECX >> 0) & 1;
+  Features["ssse3"] = (ECX >> 9) & 1;
+  Features["sse4.1"] = (ECX >> 19) & 1;
+  Features["sse4.2"] = (ECX >> 20) & 1;
+
+  Features["pclmul"] = (ECX >> 1) & 1;
+  Features["cx16"] = (ECX >> 13) & 1;
+  Features["movbe"] = (ECX >> 22) & 1;
+  Features["popcnt"] = (ECX >> 23) & 1;
+  Features["aes"] = (ECX >> 25) & 1;
+  Features["rdrnd"] = (ECX >> 30) & 1;
+
+  // If CPUID indicates support for XSAVE, XRESTORE and AVX, and XGETBV
+  // indicates that the AVX registers will be saved and restored on context
+  // switch, then we have full AVX support.
+  bool HasAVXSave = ((ECX >> 27) & 1) && ((ECX >> 28) & 1) &&
+                    !getX86XCR0(&EAX, &EDX) && ((EAX & 0x6) == 0x6);
+  Features["avx"] = HasAVXSave;
+  Features["fma"] = HasAVXSave && (ECX >> 12) & 1;
+  Features["f16c"] = HasAVXSave && (ECX >> 29) & 1;
+
+  // Only enable XSAVE if OS has enabled support for saving YMM state.
+  Features["xsave"] = HasAVXSave && (ECX >> 26) & 1;
+
+  // AVX512 requires additional context to be saved by the OS.
+  bool HasAVX512Save = HasAVXSave && ((EAX & 0xe0) == 0xe0);
+
+  unsigned MaxExtLevel;
+  getX86CpuIDAndInfo(0x80000000, &MaxExtLevel, &EBX, &ECX, &EDX);
+
+  bool HasExtLeaf1 = MaxExtLevel >= 0x80000001 &&
+                     !getX86CpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX);
+  Features["lzcnt"] = HasExtLeaf1 && ((ECX >> 5) & 1);
+  Features["sse4a"] = HasExtLeaf1 && ((ECX >> 6) & 1);
+  Features["prfchw"] = HasExtLeaf1 && ((ECX >> 8) & 1);
+  Features["xop"] = HasExtLeaf1 && ((ECX >> 11) & 1) && HasAVXSave;
+  Features["lwp"] = HasExtLeaf1 && ((ECX >> 15) & 1);
+  Features["fma4"] = HasExtLeaf1 && ((ECX >> 16) & 1) && HasAVXSave;
+  Features["tbm"] = HasExtLeaf1 && ((ECX >> 21) & 1);
+  Features["mwaitx"] = HasExtLeaf1 && ((ECX >> 29) & 1);
+
+  bool HasExtLeaf8 = MaxExtLevel >= 0x80000008 &&
+                     !getX86CpuIDAndInfoEx(0x80000008,0x0, &EAX, &EBX, &ECX, &EDX);
+  Features["clzero"] = HasExtLeaf8 && ((EBX >> 0) & 1);
+
+  bool HasLeaf7 =
+      MaxLevel >= 7 && !getX86CpuIDAndInfoEx(0x7, 0x0, &EAX, &EBX, &ECX, &EDX);
+
+  // AVX2 is only supported if we have the OS save support from AVX.
+  Features["avx2"] = HasAVXSave && HasLeaf7 && ((EBX >> 5) & 1);
+
+  Features["fsgsbase"] = HasLeaf7 && ((EBX >> 0) & 1);
+  Features["sgx"] = HasLeaf7 && ((EBX >> 2) & 1);
+  Features["bmi"] = HasLeaf7 && ((EBX >> 3) & 1);
+  Features["bmi2"] = HasLeaf7 && ((EBX >> 8) & 1);
+  Features["rtm"] = HasLeaf7 && ((EBX >> 11) & 1);
+  Features["rdseed"] = HasLeaf7 && ((EBX >> 18) & 1);
+  Features["adx"] = HasLeaf7 && ((EBX >> 19) & 1);
+  Features["clflushopt"] = HasLeaf7 && ((EBX >> 23) & 1);
+  Features["clwb"] = HasLeaf7 && ((EBX >> 24) & 1);
+  Features["sha"] = HasLeaf7 && ((EBX >> 29) & 1);
+
+  // AVX512 is only supported if the OS supports the context save for it.
+  Features["avx512f"] = HasLeaf7 && ((EBX >> 16) & 1) && HasAVX512Save;
+  Features["avx512dq"] = HasLeaf7 && ((EBX >> 17) & 1) && HasAVX512Save;
+  Features["avx512ifma"] = HasLeaf7 && ((EBX >> 21) & 1) && HasAVX512Save;
+  Features["avx512pf"] = HasLeaf7 && ((EBX >> 26) & 1) && HasAVX512Save;
+  Features["avx512er"] = HasLeaf7 && ((EBX >> 27) & 1) && HasAVX512Save;
+  Features["avx512cd"] = HasLeaf7 && ((EBX >> 28) & 1) && HasAVX512Save;
+  Features["avx512bw"] = HasLeaf7 && ((EBX >> 30) & 1) && HasAVX512Save;
+  Features["avx512vl"] = HasLeaf7 && ((EBX >> 31) & 1) && HasAVX512Save;
+
+  Features["prefetchwt1"] = HasLeaf7 && (ECX & 1);
+  Features["avx512vbmi"] = HasLeaf7 && ((ECX >> 1) & 1) && HasAVX512Save;
+  // Enable protection keys
+  Features["pku"] = HasLeaf7 && ((ECX >> 4) & 1);
+
+  bool HasLeafD = MaxLevel >= 0xd &&
+                  !getX86CpuIDAndInfoEx(0xd, 0x1, &EAX, &EBX, &ECX, &EDX);
+
+  // Only enable XSAVE if OS has enabled support for saving YMM state.
+  Features["xsaveopt"] = HasAVXSave && HasLeafD && ((EAX >> 0) & 1);
+  Features["xsavec"] = HasAVXSave && HasLeafD && ((EAX >> 1) & 1);
+  Features["xsaves"] = HasAVXSave && HasLeafD && ((EAX >> 3) & 1);
+
+  return true;
+}
+#elif defined(__linux__) && (defined(__arm__) || defined(__aarch64__))
+bool sys::getHostCPUFeatures(StringMap<bool> &Features) {
+  std::unique_ptr<llvm::MemoryBuffer> P = getProcCpuinfoContent();
+  if (!P)
+    return false;
+
+  SmallVector<StringRef, 32> Lines;
+  P->getBuffer().split(Lines, "\n");
+
+  SmallVector<StringRef, 32> CPUFeatures;
+
+  // Look for the CPU features.
+  for (unsigned I = 0, E = Lines.size(); I != E; ++I)
+    if (Lines[I].startswith("Features")) {
+      Lines[I].split(CPUFeatures, ' ');
+      break;
+    }
+
+#if defined(__aarch64__)
+  // Keep track of which crypto features we have seen
+  enum { CAP_AES = 0x1, CAP_PMULL = 0x2, CAP_SHA1 = 0x4, CAP_SHA2 = 0x8 };
+  uint32_t crypto = 0;
+#endif
+
+  for (unsigned I = 0, E = CPUFeatures.size(); I != E; ++I) {
+    StringRef LLVMFeatureStr = StringSwitch<StringRef>(CPUFeatures[I])
+#if defined(__aarch64__)
+                                   .Case("asimd", "neon")
+                                   .Case("fp", "fp-armv8")
+                                   .Case("crc32", "crc")
+#else
+                                   .Case("half", "fp16")
+                                   .Case("neon", "neon")
+                                   .Case("vfpv3", "vfp3")
+                                   .Case("vfpv3d16", "d16")
+                                   .Case("vfpv4", "vfp4")
+                                   .Case("idiva", "hwdiv-arm")
+                                   .Case("idivt", "hwdiv")
+#endif
+                                   .Default("");
+
+#if defined(__aarch64__)
+    // We need to check crypto separately since we need all of the crypto
+    // extensions to enable the subtarget feature
+    if (CPUFeatures[I] == "aes")
+      crypto |= CAP_AES;
+    else if (CPUFeatures[I] == "pmull")
+      crypto |= CAP_PMULL;
+    else if (CPUFeatures[I] == "sha1")
+      crypto |= CAP_SHA1;
+    else if (CPUFeatures[I] == "sha2")
+      crypto |= CAP_SHA2;
+#endif
+
+    if (LLVMFeatureStr != "")
+      Features[LLVMFeatureStr] = true;
+  }
+
+#if defined(__aarch64__)
+  // If we have all crypto bits we can add the feature
+  if (crypto == (CAP_AES | CAP_PMULL | CAP_SHA1 | CAP_SHA2))
+    Features["crypto"] = true;
+#endif
+
+  return true;
+}
+#else
+bool sys::getHostCPUFeatures(StringMap<bool> &Features) { return false; }
+#endif
+
+std::string sys::getProcessTriple() {
+  Triple PT(Triple::normalize(LLVM_HOST_TRIPLE));
+
+  if (sizeof(void *) == 8 && PT.isArch32Bit())
+    PT = PT.get64BitArchVariant();
+  if (sizeof(void *) == 4 && PT.isArch64Bit())
+    PT = PT.get32BitArchVariant();
+
+  return PT.str();
+}

Modified: llvm/trunk/lib/Target/X86/X86.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86.td?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86.td (original)
+++ llvm/trunk/lib/Target/X86/X86.td Wed May  3 10:18:34 2017
@@ -170,6 +170,8 @@ def FeatureAES     : SubtargetFeature<"a
                                       [FeatureSSE2]>;
 def FeatureTBM     : SubtargetFeature<"tbm", "HasTBM", "true",
                                       "Enable TBM instructions">;
+def FeatureLWP     : SubtargetFeature<"lwp", "HasLWP", "true",
+                                      "Enable LWP instructions">;
 def FeatureMOVBE   : SubtargetFeature<"movbe", "HasMOVBE", "true",
                                       "Support MOVBE instruction">;
 def FeatureRDRAND  : SubtargetFeature<"rdrnd", "HasRDRAND", "true",
@@ -691,6 +693,7 @@ def : Proc<"bdver1", [
   FeatureLZCNT,
   FeaturePOPCNT,
   FeatureXSAVE,
+  FeatureLWP,
   FeatureSlowSHLD,
   FeatureLAHFSAHF
 ]>;
@@ -713,6 +716,7 @@ def : Proc<"bdver2", [
   FeatureXSAVE,
   FeatureBMI,
   FeatureTBM,
+  FeatureLWP,
   FeatureFMA,
   FeatureSlowSHLD,
   FeatureLAHFSAHF
@@ -737,6 +741,7 @@ def : Proc<"bdver3", [
   FeatureXSAVE,
   FeatureBMI,
   FeatureTBM,
+  FeatureLWP,
   FeatureFMA,
   FeatureXSAVEOPT,
   FeatureSlowSHLD,
@@ -763,6 +768,7 @@ def : Proc<"bdver4", [
   FeatureBMI,
   FeatureBMI2,
   FeatureTBM,
+  FeatureLWP,
   FeatureFMA,
   FeatureXSAVEOPT,
   FeatureSlowSHLD,

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Wed May  3 10:18:34 2017
@@ -20318,6 +20318,19 @@ static SDValue LowerINTRINSIC_W_CHAIN(SD
       // during ExpandISelPseudos in EmitInstrWithCustomInserter.
       return SDValue();
     }
+    case Intrinsic::x86_lwpins32:
+    case Intrinsic::x86_lwpins64: {
+      SDLoc dl(Op);
+      SDValue Chain = Op->getOperand(0);
+      SDVTList VTs = DAG.getVTList(MVT::i32, MVT::Other);
+      SDValue LwpIns =
+          DAG.getNode(X86ISD::LWPINS, dl, VTs, Chain, Op->getOperand(2),
+                      Op->getOperand(3), Op->getOperand(4));
+      SDValue SetCC = getSETCC(X86::COND_B, LwpIns.getValue(0), dl, DAG);
+      SDValue Result = DAG.getNode(ISD::ZERO_EXTEND, dl, MVT::i8, SetCC);
+      return DAG.getNode(ISD::MERGE_VALUES, dl, Op->getVTList(), Result,
+                         LwpIns.getValue(1));
+    }
     }
     return SDValue();
   }
@@ -24494,6 +24507,7 @@ const char *X86TargetLowering::getTarget
   case X86ISD::CVTP2UI_RND:        return "X86ISD::CVTP2UI_RND";
   case X86ISD::CVTS2SI_RND:        return "X86ISD::CVTS2SI_RND";
   case X86ISD::CVTS2UI_RND:        return "X86ISD::CVTS2UI_RND";
+  case X86ISD::LWPINS:             return "X86ISD::LWPINS";
   }
   return nullptr;
 }

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.h?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.h (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.h Wed May  3 10:18:34 2017
@@ -559,6 +559,9 @@ namespace llvm {
       // Conversions between float and half-float.
       CVTPS2PH, CVTPH2PS,
 
+      // LWP insert record.
+      LWPINS,
+
       // Compare and swap.
       LCMPXCHG_DAG = ISD::FIRST_TARGET_MEMORY_OPCODE,
       LCMPXCHG8_DAG,

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Wed May  3 10:18:34 2017
@@ -283,6 +283,11 @@ def X86SegAlloca : SDNode<"X86ISD::SEG_A
 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
                         [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
 
+def X86lwpins : SDNode<"X86ISD::LWPINS",
+                       SDTypeProfile<1, 3, [SDTCisVT<0, i32>, SDTCisInt<1>,
+                                            SDTCisVT<2, i32>, SDTCisVT<3, i32>]>,
+                       [SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPSideEffect]>;
+
 //===----------------------------------------------------------------------===//
 // X86 Operand Definitions.
 //
@@ -836,6 +841,7 @@ def HasFMA       : Predicate<"Subtarget-
 def HasFMA4      : Predicate<"Subtarget->hasFMA4()">;
 def HasXOP       : Predicate<"Subtarget->hasXOP()">;
 def HasTBM       : Predicate<"Subtarget->hasTBM()">;
+def HasLWP       : Predicate<"Subtarget->hasLWP()">;
 def HasMOVBE     : Predicate<"Subtarget->hasMOVBE()">;
 def HasRDRAND    : Predicate<"Subtarget->hasRDRAND()">;
 def HasF16C      : Predicate<"Subtarget->hasF16C()">;
@@ -2444,6 +2450,59 @@ defm TZMSK   : tbm_binary_intr<0x01, "tz
 } // HasTBM, EFLAGS
 
 //===----------------------------------------------------------------------===//
+// Lightweight Profiling Instructions
+
+let Predicates = [HasLWP] in {
+
+def LLWPCB : I<0x12, MRM0r, (outs), (ins GR32:$src), "llwpcb\t$src",
+               [(int_x86_llwpcb GR32:$src)], IIC_LWP>,
+               XOP, XOP9, Requires<[Not64BitMode]>;
+def SLWPCB : I<0x12, MRM1r, (outs GR32:$dst), (ins), "slwpcb\t$dst",
+               [(set GR32:$dst, (int_x86_slwpcb))], IIC_LWP>,
+               XOP, XOP9, Requires<[Not64BitMode]>;
+
+def LLWPCB64 : I<0x12, MRM0r, (outs), (ins GR64:$src), "llwpcb\t$src",
+                 [(int_x86_llwpcb GR64:$src)], IIC_LWP>,
+                 XOP, XOP9, VEX_W, Requires<[In64BitMode]>;
+def SLWPCB64 : I<0x12, MRM1r, (outs GR64:$dst), (ins), "slwpcb\t$dst",
+                 [(set GR64:$dst, (int_x86_slwpcb))], IIC_LWP>,
+                 XOP, XOP9, VEX_W, Requires<[In64BitMode]>;
+
+multiclass lwpins_intr<RegisterClass RC> {
+  def rri : Ii32<0x12, MRM0r, (outs), (ins RC:$src0, GR32:$src1, i32imm:$cntl),
+                 "lwpins\t{$cntl, $src1, $src0|$src0, $src1, $cntl}",
+                 [(set EFLAGS, (X86lwpins RC:$src0, GR32:$src1, imm:$cntl))]>,
+                 XOP_4V, XOPA;
+  let mayLoad = 1 in
+  def rmi : Ii32<0x12, MRM0m, (outs), (ins RC:$src0, i32mem:$src1, i32imm:$cntl),
+                 "lwpins\t{$cntl, $src1, $src0|$src0, $src1, $cntl}",
+                 [(set EFLAGS, (X86lwpins RC:$src0, (loadi32 addr:$src1), imm:$cntl))]>,
+                 XOP_4V, XOPA;
+}
+
+let Defs = [EFLAGS] in {
+  defm LWPINS32 : lwpins_intr<GR32>;
+  defm LWPINS64 : lwpins_intr<GR64>, VEX_W;
+} // EFLAGS
+
+multiclass lwpval_intr<RegisterClass RC, Intrinsic Int> {
+  def rri : Ii32<0x12, MRM1r, (outs), (ins RC:$src0, GR32:$src1, i32imm:$cntl),
+                 "lwpval\t{$cntl, $src1, $src0|$src0, $src1, $cntl}",
+                 [(Int RC:$src0, GR32:$src1, imm:$cntl)], IIC_LWP>,
+                 XOP_4V, XOPA;
+  let mayLoad = 1 in
+  def rmi : Ii32<0x12, MRM1m, (outs), (ins RC:$src0, i32mem:$src1, i32imm:$cntl),
+                 "lwpval\t{$cntl, $src1, $src0|$src0, $src1, $cntl}",
+                 [(Int RC:$src0, (loadi32 addr:$src1), imm:$cntl)], IIC_LWP>,
+                 XOP_4V, XOPA;
+}
+
+defm LWPVAL32 : lwpval_intr<GR32, int_x86_lwpval32>;
+defm LWPVAL64 : lwpval_intr<GR64, int_x86_lwpval64>, VEX_W;
+
+} // HasLWP
+
+//===----------------------------------------------------------------------===//
 // MONITORX/MWAITX Instructions
 //
 let SchedRW = [ WriteSystem ] in {

Modified: llvm/trunk/lib/Target/X86/X86Schedule.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Schedule.td?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Schedule.td (original)
+++ llvm/trunk/lib/Target/X86/X86Schedule.td Wed May  3 10:18:34 2017
@@ -1,662 +1,663 @@
-//===-- X86Schedule.td - X86 Scheduling Definitions --------*- tablegen -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-// InstrSchedModel annotations for out-of-order CPUs.
-//
-// These annotations are independent of the itinerary classes defined below.
-
-// Instructions with folded loads need to read the memory operand immediately,
-// but other register operands don't have to be read until the load is ready.
-// These operands are marked with ReadAfterLd.
-def ReadAfterLd : SchedRead;
-
-// Instructions with both a load and a store folded are modeled as a folded
-// load + WriteRMW.
-def WriteRMW : SchedWrite;
-
-// Most instructions can fold loads, so almost every SchedWrite comes in two
-// variants: With and without a folded load.
-// An X86FoldableSchedWrite holds a reference to the corresponding SchedWrite
-// with a folded load.
-class X86FoldableSchedWrite : SchedWrite {
-  // The SchedWrite to use when a load is folded into the instruction.
-  SchedWrite Folded;
-}
-
-// Multiclass that produces a linked pair of SchedWrites.
-multiclass X86SchedWritePair {
-  // Register-Memory operation.
-  def Ld : SchedWrite;
-  // Register-Register operation.
-  def NAME : X86FoldableSchedWrite {
-    let Folded = !cast<SchedWrite>(NAME#"Ld");
-  }
-}
-
-// Arithmetic.
-defm WriteALU  : X86SchedWritePair; // Simple integer ALU op.
-defm WriteIMul : X86SchedWritePair; // Integer multiplication.
-def  WriteIMulH : SchedWrite;       // Integer multiplication, high part.
-defm WriteIDiv : X86SchedWritePair; // Integer division.
-def  WriteLEA  : SchedWrite;        // LEA instructions can't fold loads.
-
-// Integer shifts and rotates.
-defm WriteShift : X86SchedWritePair;
-
-// Loads, stores, and moves, not folded with other operations.
-def WriteLoad  : SchedWrite;
-def WriteStore : SchedWrite;
-def WriteMove  : SchedWrite;
-
-// Idioms that clear a register, like xorps %xmm0, %xmm0.
-// These can often bypass execution ports completely.
-def WriteZero : SchedWrite;
-
-// Branches don't produce values, so they have no latency, but they still
-// consume resources. Indirect branches can fold loads.
-defm WriteJump : X86SchedWritePair;
-
-// Floating point. This covers both scalar and vector operations.
-defm WriteFAdd   : X86SchedWritePair; // Floating point add/sub/compare.
-defm WriteFMul   : X86SchedWritePair; // Floating point multiplication.
-defm WriteFDiv   : X86SchedWritePair; // Floating point division.
-defm WriteFSqrt  : X86SchedWritePair; // Floating point square root.
-defm WriteFRcp   : X86SchedWritePair; // Floating point reciprocal estimate.
-defm WriteFRsqrt : X86SchedWritePair; // Floating point reciprocal square root estimate.
-defm WriteFMA    : X86SchedWritePair; // Fused Multiply Add.
-defm WriteFShuffle  : X86SchedWritePair; // Floating point vector shuffles.
-defm WriteFBlend  : X86SchedWritePair; // Floating point vector blends.
-defm WriteFVarBlend  : X86SchedWritePair; // Fp vector variable blends.
-
-// FMA Scheduling helper class.
-class FMASC { X86FoldableSchedWrite Sched = WriteFAdd; }
-
-// Vector integer operations.
-defm WriteVecALU   : X86SchedWritePair; // Vector integer ALU op, no logicals.
-defm WriteVecShift : X86SchedWritePair; // Vector integer shifts.
-defm WriteVecIMul  : X86SchedWritePair; // Vector integer multiply.
-defm WriteShuffle  : X86SchedWritePair; // Vector shuffles.
-defm WriteBlend  : X86SchedWritePair; // Vector blends.
-defm WriteVarBlend  : X86SchedWritePair; // Vector variable blends.
-defm WriteMPSAD : X86SchedWritePair; // Vector MPSAD.
-
-// Vector bitwise operations.
-// These are often used on both floating point and integer vectors.
-defm WriteVecLogic : X86SchedWritePair; // Vector and/or/xor.
-
-// Conversion between integer and float.
-defm WriteCvtF2I : X86SchedWritePair; // Float -> Integer.
-defm WriteCvtI2F : X86SchedWritePair; // Integer -> Float.
-defm WriteCvtF2F : X86SchedWritePair; // Float -> Float size conversion.
-
-// Strings instructions.
-// Packed Compare Implicit Length Strings, Return Mask
-defm WritePCmpIStrM : X86SchedWritePair;
-// Packed Compare Explicit Length Strings, Return Mask
-defm WritePCmpEStrM : X86SchedWritePair;
-// Packed Compare Implicit Length Strings, Return Index
-defm WritePCmpIStrI : X86SchedWritePair;
-// Packed Compare Explicit Length Strings, Return Index
-defm WritePCmpEStrI : X86SchedWritePair;
-
-// AES instructions.
-defm WriteAESDecEnc : X86SchedWritePair; // Decryption, encryption.
-defm WriteAESIMC : X86SchedWritePair; // InvMixColumn.
-defm WriteAESKeyGen : X86SchedWritePair; // Key Generation.
-
-// Carry-less multiplication instructions.
-defm WriteCLMul : X86SchedWritePair;
-
-// Catch-all for expensive system instructions.
-def WriteSystem : SchedWrite;
-
-// AVX2.
-defm WriteFShuffle256 : X86SchedWritePair; // Fp 256-bit width vector shuffles.
-defm WriteShuffle256 : X86SchedWritePair; // 256-bit width vector shuffles.
-defm WriteVarVecShift : X86SchedWritePair; // Variable vector shifts.
-
-// Old microcoded instructions that nobody use.
-def WriteMicrocoded : SchedWrite;
-
-// Fence instructions.
-def WriteFence : SchedWrite;
-
-// Nop, not very useful expect it provides a model for nops!
-def WriteNop : SchedWrite;
-
-//===----------------------------------------------------------------------===//
-// Instruction Itinerary classes used for X86
-def IIC_ALU_MEM     : InstrItinClass;
-def IIC_ALU_NONMEM  : InstrItinClass;
-def IIC_LEA         : InstrItinClass;
-def IIC_LEA_16      : InstrItinClass;
-def IIC_MUL8        : InstrItinClass;
-def IIC_MUL16_MEM   : InstrItinClass;
-def IIC_MUL16_REG   : InstrItinClass;
-def IIC_MUL32_MEM   : InstrItinClass;
-def IIC_MUL32_REG   : InstrItinClass;
-def IIC_MUL64       : InstrItinClass;
-// imul by al, ax, eax, tax
-def IIC_IMUL8       : InstrItinClass;
-def IIC_IMUL16_MEM  : InstrItinClass;
-def IIC_IMUL16_REG  : InstrItinClass;
-def IIC_IMUL32_MEM  : InstrItinClass;
-def IIC_IMUL32_REG  : InstrItinClass;
-def IIC_IMUL64      : InstrItinClass;
-// imul reg by reg|mem
-def IIC_IMUL16_RM   : InstrItinClass;
-def IIC_IMUL16_RR   : InstrItinClass;
-def IIC_IMUL32_RM   : InstrItinClass;
-def IIC_IMUL32_RR   : InstrItinClass;
-def IIC_IMUL64_RM   : InstrItinClass;
-def IIC_IMUL64_RR   : InstrItinClass;
-// imul reg = reg/mem * imm
-def IIC_IMUL16_RMI  : InstrItinClass;
-def IIC_IMUL16_RRI  : InstrItinClass;
-def IIC_IMUL32_RMI  : InstrItinClass;
-def IIC_IMUL32_RRI  : InstrItinClass;
-def IIC_IMUL64_RMI  : InstrItinClass;
-def IIC_IMUL64_RRI  : InstrItinClass;
-// div
-def IIC_DIV8_MEM    : InstrItinClass;
-def IIC_DIV8_REG    : InstrItinClass;
-def IIC_DIV16       : InstrItinClass;
-def IIC_DIV32       : InstrItinClass;
-def IIC_DIV64       : InstrItinClass;
-// idiv
-def IIC_IDIV8       : InstrItinClass;
-def IIC_IDIV16      : InstrItinClass;
-def IIC_IDIV32      : InstrItinClass;
-def IIC_IDIV64      : InstrItinClass;
-// neg/not/inc/dec
-def IIC_UNARY_REG   : InstrItinClass;
-def IIC_UNARY_MEM   : InstrItinClass;
-// add/sub/and/or/xor/sbc/cmp/test
-def IIC_BIN_MEM     : InstrItinClass;
-def IIC_BIN_NONMEM  : InstrItinClass;
-// adc/sbc
-def IIC_BIN_CARRY_MEM     : InstrItinClass;
-def IIC_BIN_CARRY_NONMEM  : InstrItinClass;
-// shift/rotate
-def IIC_SR          : InstrItinClass;
-// shift double
-def IIC_SHD16_REG_IM : InstrItinClass;
-def IIC_SHD16_REG_CL : InstrItinClass;
-def IIC_SHD16_MEM_IM : InstrItinClass;
-def IIC_SHD16_MEM_CL : InstrItinClass;
-def IIC_SHD32_REG_IM : InstrItinClass;
-def IIC_SHD32_REG_CL : InstrItinClass;
-def IIC_SHD32_MEM_IM : InstrItinClass;
-def IIC_SHD32_MEM_CL : InstrItinClass;
-def IIC_SHD64_REG_IM : InstrItinClass;
-def IIC_SHD64_REG_CL : InstrItinClass;
-def IIC_SHD64_MEM_IM : InstrItinClass;
-def IIC_SHD64_MEM_CL : InstrItinClass;
-// cmov
-def IIC_CMOV16_RM : InstrItinClass;
-def IIC_CMOV16_RR : InstrItinClass;
-def IIC_CMOV32_RM : InstrItinClass;
-def IIC_CMOV32_RR : InstrItinClass;
-def IIC_CMOV64_RM : InstrItinClass;
-def IIC_CMOV64_RR : InstrItinClass;
-// set
-def IIC_SET_R : InstrItinClass;
-def IIC_SET_M : InstrItinClass;
-// jmp/jcc/jcxz
-def IIC_Jcc : InstrItinClass;
-def IIC_JCXZ : InstrItinClass;
-def IIC_JMP_REL : InstrItinClass;
-def IIC_JMP_REG : InstrItinClass;
-def IIC_JMP_MEM : InstrItinClass;
-def IIC_JMP_FAR_MEM : InstrItinClass;
-def IIC_JMP_FAR_PTR : InstrItinClass;
-// loop
-def IIC_LOOP : InstrItinClass;
-def IIC_LOOPE : InstrItinClass;
-def IIC_LOOPNE : InstrItinClass;
-// call
-def IIC_CALL_RI : InstrItinClass;
-def IIC_CALL_MEM : InstrItinClass;
-def IIC_CALL_FAR_MEM : InstrItinClass;
-def IIC_CALL_FAR_PTR : InstrItinClass;
-// ret
-def IIC_RET : InstrItinClass;
-def IIC_RET_IMM : InstrItinClass;
-//sign extension movs
-def IIC_MOVSX : InstrItinClass;
-def IIC_MOVSX_R16_R8 : InstrItinClass;
-def IIC_MOVSX_R16_M8 : InstrItinClass;
-def IIC_MOVSX_R16_R16 : InstrItinClass;
-def IIC_MOVSX_R32_R32 : InstrItinClass;
-//zero extension movs
-def IIC_MOVZX : InstrItinClass;
-def IIC_MOVZX_R16_R8 : InstrItinClass;
-def IIC_MOVZX_R16_M8 : InstrItinClass;
-
-def IIC_REP_MOVS : InstrItinClass;
-def IIC_REP_STOS : InstrItinClass;
-
-// SSE scalar/parallel binary operations
-def IIC_SSE_ALU_F32S_RR : InstrItinClass;
-def IIC_SSE_ALU_F32S_RM : InstrItinClass;
-def IIC_SSE_ALU_F64S_RR : InstrItinClass;
-def IIC_SSE_ALU_F64S_RM : InstrItinClass;
-def IIC_SSE_MUL_F32S_RR : InstrItinClass;
-def IIC_SSE_MUL_F32S_RM : InstrItinClass;
-def IIC_SSE_MUL_F64S_RR : InstrItinClass;
-def IIC_SSE_MUL_F64S_RM : InstrItinClass;
-def IIC_SSE_DIV_F32S_RR : InstrItinClass;
-def IIC_SSE_DIV_F32S_RM : InstrItinClass;
-def IIC_SSE_DIV_F64S_RR : InstrItinClass;
-def IIC_SSE_DIV_F64S_RM : InstrItinClass;
-def IIC_SSE_ALU_F32P_RR : InstrItinClass;
-def IIC_SSE_ALU_F32P_RM : InstrItinClass;
-def IIC_SSE_ALU_F64P_RR : InstrItinClass;
-def IIC_SSE_ALU_F64P_RM : InstrItinClass;
-def IIC_SSE_MUL_F32P_RR : InstrItinClass;
-def IIC_SSE_MUL_F32P_RM : InstrItinClass;
-def IIC_SSE_MUL_F64P_RR : InstrItinClass;
-def IIC_SSE_MUL_F64P_RM : InstrItinClass;
-def IIC_SSE_DIV_F32P_RR : InstrItinClass;
-def IIC_SSE_DIV_F32P_RM : InstrItinClass;
-def IIC_SSE_DIV_F64P_RR : InstrItinClass;
-def IIC_SSE_DIV_F64P_RM : InstrItinClass;
-
-def IIC_SSE_COMIS_RR : InstrItinClass;
-def IIC_SSE_COMIS_RM : InstrItinClass;
-
-def IIC_SSE_HADDSUB_RR : InstrItinClass;
-def IIC_SSE_HADDSUB_RM : InstrItinClass;
-
-def IIC_SSE_BIT_P_RR  : InstrItinClass;
-def IIC_SSE_BIT_P_RM  : InstrItinClass;
-
-def IIC_SSE_INTALU_P_RR  : InstrItinClass;
-def IIC_SSE_INTALU_P_RM  : InstrItinClass;
-def IIC_SSE_INTALUQ_P_RR  : InstrItinClass;
-def IIC_SSE_INTALUQ_P_RM  : InstrItinClass;
-
-def IIC_SSE_INTMUL_P_RR : InstrItinClass;
-def IIC_SSE_INTMUL_P_RM : InstrItinClass;
-
-def IIC_SSE_INTSH_P_RR : InstrItinClass;
-def IIC_SSE_INTSH_P_RM : InstrItinClass;
-def IIC_SSE_INTSH_P_RI : InstrItinClass;
-
-def IIC_SSE_INTSHDQ_P_RI : InstrItinClass;
-
-def IIC_SSE_SHUFP : InstrItinClass;
-def IIC_SSE_PSHUF_RI : InstrItinClass;
-def IIC_SSE_PSHUF_MI : InstrItinClass;
-
-def IIC_SSE_UNPCK : InstrItinClass;
-
-def IIC_SSE_MOVMSK : InstrItinClass;
-def IIC_SSE_MASKMOV : InstrItinClass;
-
-def IIC_SSE_PEXTRW : InstrItinClass;
-def IIC_SSE_PINSRW : InstrItinClass;
-
-def IIC_SSE_PABS_RR : InstrItinClass;
-def IIC_SSE_PABS_RM : InstrItinClass;
-
-def IIC_SSE_SQRTPS_RR : InstrItinClass;
-def IIC_SSE_SQRTPS_RM : InstrItinClass;
-def IIC_SSE_SQRTSS_RR : InstrItinClass;
-def IIC_SSE_SQRTSS_RM : InstrItinClass;
-def IIC_SSE_SQRTPD_RR : InstrItinClass;
-def IIC_SSE_SQRTPD_RM : InstrItinClass;
-def IIC_SSE_SQRTSD_RR : InstrItinClass;
-def IIC_SSE_SQRTSD_RM : InstrItinClass;
-
-def IIC_SSE_RSQRTPS_RR : InstrItinClass;
-def IIC_SSE_RSQRTPS_RM : InstrItinClass;
-def IIC_SSE_RSQRTSS_RR : InstrItinClass;
-def IIC_SSE_RSQRTSS_RM : InstrItinClass;
-
-def IIC_SSE_RCPP_RR : InstrItinClass;
-def IIC_SSE_RCPP_RM : InstrItinClass;
-def IIC_SSE_RCPS_RR : InstrItinClass;
-def IIC_SSE_RCPS_RM : InstrItinClass;
-
-def IIC_SSE_MOV_S_RR : InstrItinClass;
-def IIC_SSE_MOV_S_RM : InstrItinClass;
-def IIC_SSE_MOV_S_MR : InstrItinClass;
-
-def IIC_SSE_MOVA_P_RR : InstrItinClass;
-def IIC_SSE_MOVA_P_RM : InstrItinClass;
-def IIC_SSE_MOVA_P_MR : InstrItinClass;
-
-def IIC_SSE_MOVU_P_RR : InstrItinClass;
-def IIC_SSE_MOVU_P_RM : InstrItinClass;
-def IIC_SSE_MOVU_P_MR : InstrItinClass;
-
-def IIC_SSE_MOVDQ : InstrItinClass;
-def IIC_SSE_MOVD_ToGP : InstrItinClass;
-def IIC_SSE_MOVQ_RR : InstrItinClass;
-
-def IIC_SSE_MOV_LH : InstrItinClass;
-
-def IIC_SSE_LDDQU : InstrItinClass;
-
-def IIC_SSE_MOVNT : InstrItinClass;
-
-def IIC_SSE_PHADDSUBD_RR : InstrItinClass;
-def IIC_SSE_PHADDSUBD_RM : InstrItinClass;
-def IIC_SSE_PHADDSUBSW_RR : InstrItinClass;
-def IIC_SSE_PHADDSUBSW_RM : InstrItinClass;
-def IIC_SSE_PHADDSUBW_RR : InstrItinClass;
-def IIC_SSE_PHADDSUBW_RM : InstrItinClass;
-def IIC_SSE_PSHUFB_RR : InstrItinClass;
-def IIC_SSE_PSHUFB_RM : InstrItinClass;
-def IIC_SSE_PSIGN_RR : InstrItinClass;
-def IIC_SSE_PSIGN_RM : InstrItinClass;
-
-def IIC_SSE_PMADD : InstrItinClass;
-def IIC_SSE_PMULHRSW : InstrItinClass;
-def IIC_SSE_PALIGNRR : InstrItinClass;
-def IIC_SSE_PALIGNRM : InstrItinClass;
-def IIC_SSE_MWAIT : InstrItinClass;
-def IIC_SSE_MONITOR : InstrItinClass;
-def IIC_SSE_MWAITX : InstrItinClass;
-def IIC_SSE_MONITORX : InstrItinClass;
-def IIC_SSE_CLZERO : InstrItinClass;
-
-def IIC_SSE_PREFETCH : InstrItinClass;
-def IIC_SSE_PAUSE : InstrItinClass;
-def IIC_SSE_LFENCE : InstrItinClass;
-def IIC_SSE_MFENCE : InstrItinClass;
-def IIC_SSE_SFENCE : InstrItinClass;
-def IIC_SSE_LDMXCSR : InstrItinClass;
-def IIC_SSE_STMXCSR : InstrItinClass;
-
-def IIC_SSE_CVT_PD_RR : InstrItinClass;
-def IIC_SSE_CVT_PD_RM : InstrItinClass;
-def IIC_SSE_CVT_PS_RR : InstrItinClass;
-def IIC_SSE_CVT_PS_RM : InstrItinClass;
-def IIC_SSE_CVT_PI2PS_RR : InstrItinClass;
-def IIC_SSE_CVT_PI2PS_RM : InstrItinClass;
-def IIC_SSE_CVT_Scalar_RR : InstrItinClass;
-def IIC_SSE_CVT_Scalar_RM : InstrItinClass;
-def IIC_SSE_CVT_SS2SI32_RM : InstrItinClass;
-def IIC_SSE_CVT_SS2SI32_RR : InstrItinClass;
-def IIC_SSE_CVT_SS2SI64_RM : InstrItinClass;
-def IIC_SSE_CVT_SS2SI64_RR : InstrItinClass;
-def IIC_SSE_CVT_SD2SI_RM : InstrItinClass;
-def IIC_SSE_CVT_SD2SI_RR : InstrItinClass;
-
-// MMX
-def IIC_MMX_MOV_MM_RM : InstrItinClass;
-def IIC_MMX_MOV_REG_MM : InstrItinClass;
-def IIC_MMX_MOVQ_RM : InstrItinClass;
-def IIC_MMX_MOVQ_RR : InstrItinClass;
-
-def IIC_MMX_ALU_RM : InstrItinClass;
-def IIC_MMX_ALU_RR : InstrItinClass;
-def IIC_MMX_ALUQ_RM : InstrItinClass;
-def IIC_MMX_ALUQ_RR : InstrItinClass;
-def IIC_MMX_PHADDSUBW_RM : InstrItinClass;
-def IIC_MMX_PHADDSUBW_RR : InstrItinClass;
-def IIC_MMX_PHADDSUBD_RM : InstrItinClass;
-def IIC_MMX_PHADDSUBD_RR : InstrItinClass;
-def IIC_MMX_PMUL : InstrItinClass;
-def IIC_MMX_MISC_FUNC_MEM : InstrItinClass;
-def IIC_MMX_MISC_FUNC_REG : InstrItinClass;
-def IIC_MMX_PSADBW : InstrItinClass;
-def IIC_MMX_SHIFT_RI : InstrItinClass;
-def IIC_MMX_SHIFT_RM : InstrItinClass;
-def IIC_MMX_SHIFT_RR : InstrItinClass;
-def IIC_MMX_UNPCK_H_RM : InstrItinClass;
-def IIC_MMX_UNPCK_H_RR : InstrItinClass;
-def IIC_MMX_UNPCK_L : InstrItinClass;
-def IIC_MMX_PCK_RM : InstrItinClass;
-def IIC_MMX_PCK_RR : InstrItinClass;
-def IIC_MMX_PSHUF : InstrItinClass;
-def IIC_MMX_PEXTR : InstrItinClass;
-def IIC_MMX_PINSRW : InstrItinClass;
-def IIC_MMX_MASKMOV : InstrItinClass;
-
-def IIC_MMX_CVT_PD_RR : InstrItinClass;
-def IIC_MMX_CVT_PD_RM : InstrItinClass;
-def IIC_MMX_CVT_PS_RR : InstrItinClass;
-def IIC_MMX_CVT_PS_RM : InstrItinClass;
-
-def IIC_CMPX_LOCK : InstrItinClass;
-def IIC_CMPX_LOCK_8 : InstrItinClass;
-def IIC_CMPX_LOCK_8B : InstrItinClass;
-def IIC_CMPX_LOCK_16B : InstrItinClass;
-
-def IIC_XADD_LOCK_MEM : InstrItinClass;
-def IIC_XADD_LOCK_MEM8 : InstrItinClass;
-
-def IIC_FILD : InstrItinClass;
-def IIC_FLD : InstrItinClass;
-def IIC_FLD80 : InstrItinClass;
-def IIC_FST : InstrItinClass;
-def IIC_FST80 : InstrItinClass;
-def IIC_FIST : InstrItinClass;
-def IIC_FLDZ : InstrItinClass;
-def IIC_FUCOM : InstrItinClass;
-def IIC_FUCOMI : InstrItinClass;
-def IIC_FCOMI : InstrItinClass;
-def IIC_FNSTSW : InstrItinClass;
-def IIC_FNSTCW : InstrItinClass;
-def IIC_FLDCW : InstrItinClass;
-def IIC_FNINIT : InstrItinClass;
-def IIC_FFREE : InstrItinClass;
-def IIC_FNCLEX : InstrItinClass;
-def IIC_WAIT : InstrItinClass;
-def IIC_FXAM : InstrItinClass;
-def IIC_FNOP : InstrItinClass;
-def IIC_FLDL : InstrItinClass;
-def IIC_F2XM1 : InstrItinClass;
-def IIC_FYL2X : InstrItinClass;
-def IIC_FPTAN : InstrItinClass;
-def IIC_FPATAN : InstrItinClass;
-def IIC_FXTRACT : InstrItinClass;
-def IIC_FPREM1 : InstrItinClass;
-def IIC_FPSTP : InstrItinClass;
-def IIC_FPREM : InstrItinClass;
-def IIC_FYL2XP1 : InstrItinClass;
-def IIC_FSINCOS : InstrItinClass;
-def IIC_FRNDINT : InstrItinClass;
-def IIC_FSCALE : InstrItinClass;
-def IIC_FCOMPP : InstrItinClass;
-def IIC_FXSAVE : InstrItinClass;
-def IIC_FXRSTOR : InstrItinClass;
-
-def IIC_FXCH : InstrItinClass;
-
-// System instructions
-def IIC_CPUID : InstrItinClass;
-def IIC_INT : InstrItinClass;
-def IIC_INT3 : InstrItinClass;
-def IIC_INVD : InstrItinClass;
-def IIC_INVLPG : InstrItinClass;
-def IIC_IRET : InstrItinClass;
-def IIC_HLT : InstrItinClass;
-def IIC_LXS : InstrItinClass;
-def IIC_LTR : InstrItinClass;
-def IIC_RDTSC : InstrItinClass;
-def IIC_RSM : InstrItinClass;
-def IIC_SIDT : InstrItinClass;
-def IIC_SGDT : InstrItinClass;
-def IIC_SLDT : InstrItinClass;
-def IIC_STR : InstrItinClass;
-def IIC_SWAPGS : InstrItinClass;
-def IIC_SYSCALL : InstrItinClass;
-def IIC_SYS_ENTER_EXIT : InstrItinClass;
-def IIC_IN_RR : InstrItinClass;
-def IIC_IN_RI : InstrItinClass;
-def IIC_OUT_RR : InstrItinClass;
-def IIC_OUT_IR : InstrItinClass;
-def IIC_INS : InstrItinClass;
-def IIC_MOV_REG_DR : InstrItinClass;
-def IIC_MOV_DR_REG : InstrItinClass;
-def IIC_MOV_REG_CR : InstrItinClass;
-def IIC_MOV_CR_REG : InstrItinClass;
-def IIC_MOV_REG_SR : InstrItinClass;
-def IIC_MOV_MEM_SR : InstrItinClass;
-def IIC_MOV_SR_REG : InstrItinClass;
-def IIC_MOV_SR_MEM : InstrItinClass;
-def IIC_LAR_RM : InstrItinClass;
-def IIC_LAR_RR : InstrItinClass;
-def IIC_LSL_RM : InstrItinClass;
-def IIC_LSL_RR : InstrItinClass;
-def IIC_LGDT : InstrItinClass;
-def IIC_LIDT : InstrItinClass;
-def IIC_LLDT_REG : InstrItinClass;
-def IIC_LLDT_MEM : InstrItinClass;
-def IIC_PUSH_CS : InstrItinClass;
-def IIC_PUSH_SR : InstrItinClass;
-def IIC_POP_SR : InstrItinClass;
-def IIC_POP_SR_SS : InstrItinClass;
-def IIC_VERR : InstrItinClass;
-def IIC_VERW_REG : InstrItinClass;
-def IIC_VERW_MEM : InstrItinClass;
-def IIC_WRMSR : InstrItinClass;
-def IIC_RDMSR : InstrItinClass;
-def IIC_RDPMC : InstrItinClass;
-def IIC_SMSW : InstrItinClass;
-def IIC_LMSW_REG : InstrItinClass;
-def IIC_LMSW_MEM : InstrItinClass;
-def IIC_ENTER : InstrItinClass;
-def IIC_LEAVE : InstrItinClass;
-def IIC_POP_MEM : InstrItinClass;
-def IIC_POP_REG16 : InstrItinClass;
-def IIC_POP_REG : InstrItinClass;
-def IIC_POP_F : InstrItinClass;
-def IIC_POP_FD : InstrItinClass;
-def IIC_POP_A : InstrItinClass;
-def IIC_PUSH_IMM : InstrItinClass;
-def IIC_PUSH_MEM : InstrItinClass;
-def IIC_PUSH_REG : InstrItinClass;
-def IIC_PUSH_F : InstrItinClass;
-def IIC_PUSH_A : InstrItinClass;
-def IIC_BSWAP : InstrItinClass;
-def IIC_BIT_SCAN_MEM : InstrItinClass;
-def IIC_BIT_SCAN_REG : InstrItinClass;
-def IIC_MOVS : InstrItinClass;
-def IIC_STOS : InstrItinClass;
-def IIC_SCAS : InstrItinClass;
-def IIC_CMPS : InstrItinClass;
-def IIC_MOV : InstrItinClass;
-def IIC_MOV_MEM : InstrItinClass;
-def IIC_AHF : InstrItinClass;
-def IIC_BT_MI : InstrItinClass;
-def IIC_BT_MR : InstrItinClass;
-def IIC_BT_RI : InstrItinClass;
-def IIC_BT_RR : InstrItinClass;
-def IIC_BTX_MI : InstrItinClass;
-def IIC_BTX_MR : InstrItinClass;
-def IIC_BTX_RI : InstrItinClass;
-def IIC_BTX_RR : InstrItinClass;
-def IIC_XCHG_REG : InstrItinClass;
-def IIC_XCHG_MEM : InstrItinClass;
-def IIC_XADD_REG : InstrItinClass;
-def IIC_XADD_MEM : InstrItinClass;
-def IIC_CMPXCHG_MEM : InstrItinClass;
-def IIC_CMPXCHG_REG : InstrItinClass;
-def IIC_CMPXCHG_MEM8 : InstrItinClass;
-def IIC_CMPXCHG_REG8 : InstrItinClass;
-def IIC_CMPXCHG_8B : InstrItinClass;
-def IIC_CMPXCHG_16B : InstrItinClass;
-def IIC_LODS : InstrItinClass;
-def IIC_OUTS : InstrItinClass;
-def IIC_CLC : InstrItinClass;
-def IIC_CLD : InstrItinClass;
-def IIC_CLI : InstrItinClass;
-def IIC_CMC : InstrItinClass;
-def IIC_CLTS : InstrItinClass;
-def IIC_STC : InstrItinClass;
-def IIC_STI : InstrItinClass;
-def IIC_STD : InstrItinClass;
-def IIC_XLAT : InstrItinClass;
-def IIC_AAA : InstrItinClass;
-def IIC_AAD : InstrItinClass;
-def IIC_AAM : InstrItinClass;
-def IIC_AAS : InstrItinClass;
-def IIC_DAA : InstrItinClass;
-def IIC_DAS : InstrItinClass;
-def IIC_BOUND : InstrItinClass;
-def IIC_ARPL_REG : InstrItinClass;
-def IIC_ARPL_MEM : InstrItinClass;
-def IIC_MOVBE : InstrItinClass;
-def IIC_AES   : InstrItinClass;
-def IIC_BLEND_MEM : InstrItinClass;
-def IIC_BLEND_NOMEM : InstrItinClass;
-def IIC_CBW   : InstrItinClass;
-def IIC_CRC32_REG : InstrItinClass;
-def IIC_CRC32_MEM : InstrItinClass;
-def IIC_SSE_DPPD_RR : InstrItinClass;
-def IIC_SSE_DPPD_RM : InstrItinClass;
-def IIC_SSE_DPPS_RR : InstrItinClass;
-def IIC_SSE_DPPS_RM : InstrItinClass;
-def IIC_MMX_EMMS : InstrItinClass;
-def IIC_SSE_EXTRACTPS_RR : InstrItinClass;
-def IIC_SSE_EXTRACTPS_RM : InstrItinClass;
-def IIC_SSE_INSERTPS_RR : InstrItinClass;
-def IIC_SSE_INSERTPS_RM : InstrItinClass;
-def IIC_SSE_MPSADBW_RR : InstrItinClass;
-def IIC_SSE_MPSADBW_RM : InstrItinClass;
-def IIC_SSE_PMULLD_RR : InstrItinClass;
-def IIC_SSE_PMULLD_RM : InstrItinClass;
-def IIC_SSE_ROUNDPS_REG : InstrItinClass;
-def IIC_SSE_ROUNDPS_MEM : InstrItinClass;
-def IIC_SSE_ROUNDPD_REG : InstrItinClass;
-def IIC_SSE_ROUNDPD_MEM : InstrItinClass;
-def IIC_SSE_POPCNT_RR : InstrItinClass;
-def IIC_SSE_POPCNT_RM : InstrItinClass;
-def IIC_SSE_PCLMULQDQ_RR : InstrItinClass;
-def IIC_SSE_PCLMULQDQ_RM : InstrItinClass;
-
-def IIC_NOP : InstrItinClass;
-
-//===----------------------------------------------------------------------===//
-// Processor instruction itineraries.
-
-// IssueWidth is analogous to the number of decode units. Core and its
-// descendents, including Nehalem and SandyBridge have 4 decoders.
-// Resources beyond the decoder operate on micro-ops and are bufferred
-// so adjacent micro-ops don't directly compete.
-//
-// MicroOpBufferSize > 1 indicates that RAW dependencies can be
-// decoded in the same cycle. The value 32 is a reasonably arbitrary
-// number of in-flight instructions.
-//
-// HighLatency=10 is optimistic. X86InstrInfo::isHighLatencyDef
-// indicates high latency opcodes. Alternatively, InstrItinData
-// entries may be included here to define specific operand
-// latencies. Since these latencies are not used for pipeline hazards,
-// they do not need to be exact.
-//
-// The GenericX86Model contains no instruction itineraries
-// and disables PostRAScheduler.
-class GenericX86Model : SchedMachineModel {
-  let IssueWidth = 4;
-  let MicroOpBufferSize = 32;
-  let LoadLatency = 4;
-  let HighLatency = 10;
-  let PostRAScheduler = 0;
-  let CompleteModel = 0;
-}
-
-def GenericModel : GenericX86Model;
-
-// Define a model with the PostRAScheduler enabled.
-def GenericPostRAModel : GenericX86Model {
-  let PostRAScheduler = 1;
-}
-
-include "X86ScheduleAtom.td"
-include "X86SchedSandyBridge.td"
-include "X86SchedHaswell.td"
-include "X86ScheduleSLM.td"
-include "X86ScheduleBtVer2.td"
-
+//===-- X86Schedule.td - X86 Scheduling Definitions --------*- tablegen -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// InstrSchedModel annotations for out-of-order CPUs.
+//
+// These annotations are independent of the itinerary classes defined below.
+
+// Instructions with folded loads need to read the memory operand immediately,
+// but other register operands don't have to be read until the load is ready.
+// These operands are marked with ReadAfterLd.
+def ReadAfterLd : SchedRead;
+
+// Instructions with both a load and a store folded are modeled as a folded
+// load + WriteRMW.
+def WriteRMW : SchedWrite;
+
+// Most instructions can fold loads, so almost every SchedWrite comes in two
+// variants: With and without a folded load.
+// An X86FoldableSchedWrite holds a reference to the corresponding SchedWrite
+// with a folded load.
+class X86FoldableSchedWrite : SchedWrite {
+  // The SchedWrite to use when a load is folded into the instruction.
+  SchedWrite Folded;
+}
+
+// Multiclass that produces a linked pair of SchedWrites.
+multiclass X86SchedWritePair {
+  // Register-Memory operation.
+  def Ld : SchedWrite;
+  // Register-Register operation.
+  def NAME : X86FoldableSchedWrite {
+    let Folded = !cast<SchedWrite>(NAME#"Ld");
+  }
+}
+
+// Arithmetic.
+defm WriteALU  : X86SchedWritePair; // Simple integer ALU op.
+defm WriteIMul : X86SchedWritePair; // Integer multiplication.
+def  WriteIMulH : SchedWrite;       // Integer multiplication, high part.
+defm WriteIDiv : X86SchedWritePair; // Integer division.
+def  WriteLEA  : SchedWrite;        // LEA instructions can't fold loads.
+
+// Integer shifts and rotates.
+defm WriteShift : X86SchedWritePair;
+
+// Loads, stores, and moves, not folded with other operations.
+def WriteLoad  : SchedWrite;
+def WriteStore : SchedWrite;
+def WriteMove  : SchedWrite;
+
+// Idioms that clear a register, like xorps %xmm0, %xmm0.
+// These can often bypass execution ports completely.
+def WriteZero : SchedWrite;
+
+// Branches don't produce values, so they have no latency, but they still
+// consume resources. Indirect branches can fold loads.
+defm WriteJump : X86SchedWritePair;
+
+// Floating point. This covers both scalar and vector operations.
+defm WriteFAdd   : X86SchedWritePair; // Floating point add/sub/compare.
+defm WriteFMul   : X86SchedWritePair; // Floating point multiplication.
+defm WriteFDiv   : X86SchedWritePair; // Floating point division.
+defm WriteFSqrt  : X86SchedWritePair; // Floating point square root.
+defm WriteFRcp   : X86SchedWritePair; // Floating point reciprocal estimate.
+defm WriteFRsqrt : X86SchedWritePair; // Floating point reciprocal square root estimate.
+defm WriteFMA    : X86SchedWritePair; // Fused Multiply Add.
+defm WriteFShuffle  : X86SchedWritePair; // Floating point vector shuffles.
+defm WriteFBlend  : X86SchedWritePair; // Floating point vector blends.
+defm WriteFVarBlend  : X86SchedWritePair; // Fp vector variable blends.
+
+// FMA Scheduling helper class.
+class FMASC { X86FoldableSchedWrite Sched = WriteFAdd; }
+
+// Vector integer operations.
+defm WriteVecALU   : X86SchedWritePair; // Vector integer ALU op, no logicals.
+defm WriteVecShift : X86SchedWritePair; // Vector integer shifts.
+defm WriteVecIMul  : X86SchedWritePair; // Vector integer multiply.
+defm WriteShuffle  : X86SchedWritePair; // Vector shuffles.
+defm WriteBlend  : X86SchedWritePair; // Vector blends.
+defm WriteVarBlend  : X86SchedWritePair; // Vector variable blends.
+defm WriteMPSAD : X86SchedWritePair; // Vector MPSAD.
+
+// Vector bitwise operations.
+// These are often used on both floating point and integer vectors.
+defm WriteVecLogic : X86SchedWritePair; // Vector and/or/xor.
+
+// Conversion between integer and float.
+defm WriteCvtF2I : X86SchedWritePair; // Float -> Integer.
+defm WriteCvtI2F : X86SchedWritePair; // Integer -> Float.
+defm WriteCvtF2F : X86SchedWritePair; // Float -> Float size conversion.
+
+// Strings instructions.
+// Packed Compare Implicit Length Strings, Return Mask
+defm WritePCmpIStrM : X86SchedWritePair;
+// Packed Compare Explicit Length Strings, Return Mask
+defm WritePCmpEStrM : X86SchedWritePair;
+// Packed Compare Implicit Length Strings, Return Index
+defm WritePCmpIStrI : X86SchedWritePair;
+// Packed Compare Explicit Length Strings, Return Index
+defm WritePCmpEStrI : X86SchedWritePair;
+
+// AES instructions.
+defm WriteAESDecEnc : X86SchedWritePair; // Decryption, encryption.
+defm WriteAESIMC : X86SchedWritePair; // InvMixColumn.
+defm WriteAESKeyGen : X86SchedWritePair; // Key Generation.
+
+// Carry-less multiplication instructions.
+defm WriteCLMul : X86SchedWritePair;
+
+// Catch-all for expensive system instructions.
+def WriteSystem : SchedWrite;
+
+// AVX2.
+defm WriteFShuffle256 : X86SchedWritePair; // Fp 256-bit width vector shuffles.
+defm WriteShuffle256 : X86SchedWritePair; // 256-bit width vector shuffles.
+defm WriteVarVecShift : X86SchedWritePair; // Variable vector shifts.
+
+// Old microcoded instructions that nobody use.
+def WriteMicrocoded : SchedWrite;
+
+// Fence instructions.
+def WriteFence : SchedWrite;
+
+// Nop, not very useful expect it provides a model for nops!
+def WriteNop : SchedWrite;
+
+//===----------------------------------------------------------------------===//
+// Instruction Itinerary classes used for X86
+def IIC_ALU_MEM     : InstrItinClass;
+def IIC_ALU_NONMEM  : InstrItinClass;
+def IIC_LEA         : InstrItinClass;
+def IIC_LEA_16      : InstrItinClass;
+def IIC_MUL8        : InstrItinClass;
+def IIC_MUL16_MEM   : InstrItinClass;
+def IIC_MUL16_REG   : InstrItinClass;
+def IIC_MUL32_MEM   : InstrItinClass;
+def IIC_MUL32_REG   : InstrItinClass;
+def IIC_MUL64       : InstrItinClass;
+// imul by al, ax, eax, tax
+def IIC_IMUL8       : InstrItinClass;
+def IIC_IMUL16_MEM  : InstrItinClass;
+def IIC_IMUL16_REG  : InstrItinClass;
+def IIC_IMUL32_MEM  : InstrItinClass;
+def IIC_IMUL32_REG  : InstrItinClass;
+def IIC_IMUL64      : InstrItinClass;
+// imul reg by reg|mem
+def IIC_IMUL16_RM   : InstrItinClass;
+def IIC_IMUL16_RR   : InstrItinClass;
+def IIC_IMUL32_RM   : InstrItinClass;
+def IIC_IMUL32_RR   : InstrItinClass;
+def IIC_IMUL64_RM   : InstrItinClass;
+def IIC_IMUL64_RR   : InstrItinClass;
+// imul reg = reg/mem * imm
+def IIC_IMUL16_RMI  : InstrItinClass;
+def IIC_IMUL16_RRI  : InstrItinClass;
+def IIC_IMUL32_RMI  : InstrItinClass;
+def IIC_IMUL32_RRI  : InstrItinClass;
+def IIC_IMUL64_RMI  : InstrItinClass;
+def IIC_IMUL64_RRI  : InstrItinClass;
+// div
+def IIC_DIV8_MEM    : InstrItinClass;
+def IIC_DIV8_REG    : InstrItinClass;
+def IIC_DIV16       : InstrItinClass;
+def IIC_DIV32       : InstrItinClass;
+def IIC_DIV64       : InstrItinClass;
+// idiv
+def IIC_IDIV8       : InstrItinClass;
+def IIC_IDIV16      : InstrItinClass;
+def IIC_IDIV32      : InstrItinClass;
+def IIC_IDIV64      : InstrItinClass;
+// neg/not/inc/dec
+def IIC_UNARY_REG   : InstrItinClass;
+def IIC_UNARY_MEM   : InstrItinClass;
+// add/sub/and/or/xor/sbc/cmp/test
+def IIC_BIN_MEM     : InstrItinClass;
+def IIC_BIN_NONMEM  : InstrItinClass;
+// adc/sbc
+def IIC_BIN_CARRY_MEM     : InstrItinClass;
+def IIC_BIN_CARRY_NONMEM  : InstrItinClass;
+// shift/rotate
+def IIC_SR          : InstrItinClass;
+// shift double
+def IIC_SHD16_REG_IM : InstrItinClass;
+def IIC_SHD16_REG_CL : InstrItinClass;
+def IIC_SHD16_MEM_IM : InstrItinClass;
+def IIC_SHD16_MEM_CL : InstrItinClass;
+def IIC_SHD32_REG_IM : InstrItinClass;
+def IIC_SHD32_REG_CL : InstrItinClass;
+def IIC_SHD32_MEM_IM : InstrItinClass;
+def IIC_SHD32_MEM_CL : InstrItinClass;
+def IIC_SHD64_REG_IM : InstrItinClass;
+def IIC_SHD64_REG_CL : InstrItinClass;
+def IIC_SHD64_MEM_IM : InstrItinClass;
+def IIC_SHD64_MEM_CL : InstrItinClass;
+// cmov
+def IIC_CMOV16_RM : InstrItinClass;
+def IIC_CMOV16_RR : InstrItinClass;
+def IIC_CMOV32_RM : InstrItinClass;
+def IIC_CMOV32_RR : InstrItinClass;
+def IIC_CMOV64_RM : InstrItinClass;
+def IIC_CMOV64_RR : InstrItinClass;
+// set
+def IIC_SET_R : InstrItinClass;
+def IIC_SET_M : InstrItinClass;
+// jmp/jcc/jcxz
+def IIC_Jcc : InstrItinClass;
+def IIC_JCXZ : InstrItinClass;
+def IIC_JMP_REL : InstrItinClass;
+def IIC_JMP_REG : InstrItinClass;
+def IIC_JMP_MEM : InstrItinClass;
+def IIC_JMP_FAR_MEM : InstrItinClass;
+def IIC_JMP_FAR_PTR : InstrItinClass;
+// loop
+def IIC_LOOP : InstrItinClass;
+def IIC_LOOPE : InstrItinClass;
+def IIC_LOOPNE : InstrItinClass;
+// call
+def IIC_CALL_RI : InstrItinClass;
+def IIC_CALL_MEM : InstrItinClass;
+def IIC_CALL_FAR_MEM : InstrItinClass;
+def IIC_CALL_FAR_PTR : InstrItinClass;
+// ret
+def IIC_RET : InstrItinClass;
+def IIC_RET_IMM : InstrItinClass;
+//sign extension movs
+def IIC_MOVSX : InstrItinClass;
+def IIC_MOVSX_R16_R8 : InstrItinClass;
+def IIC_MOVSX_R16_M8 : InstrItinClass;
+def IIC_MOVSX_R16_R16 : InstrItinClass;
+def IIC_MOVSX_R32_R32 : InstrItinClass;
+//zero extension movs
+def IIC_MOVZX : InstrItinClass;
+def IIC_MOVZX_R16_R8 : InstrItinClass;
+def IIC_MOVZX_R16_M8 : InstrItinClass;
+
+def IIC_REP_MOVS : InstrItinClass;
+def IIC_REP_STOS : InstrItinClass;
+
+// SSE scalar/parallel binary operations
+def IIC_SSE_ALU_F32S_RR : InstrItinClass;
+def IIC_SSE_ALU_F32S_RM : InstrItinClass;
+def IIC_SSE_ALU_F64S_RR : InstrItinClass;
+def IIC_SSE_ALU_F64S_RM : InstrItinClass;
+def IIC_SSE_MUL_F32S_RR : InstrItinClass;
+def IIC_SSE_MUL_F32S_RM : InstrItinClass;
+def IIC_SSE_MUL_F64S_RR : InstrItinClass;
+def IIC_SSE_MUL_F64S_RM : InstrItinClass;
+def IIC_SSE_DIV_F32S_RR : InstrItinClass;
+def IIC_SSE_DIV_F32S_RM : InstrItinClass;
+def IIC_SSE_DIV_F64S_RR : InstrItinClass;
+def IIC_SSE_DIV_F64S_RM : InstrItinClass;
+def IIC_SSE_ALU_F32P_RR : InstrItinClass;
+def IIC_SSE_ALU_F32P_RM : InstrItinClass;
+def IIC_SSE_ALU_F64P_RR : InstrItinClass;
+def IIC_SSE_ALU_F64P_RM : InstrItinClass;
+def IIC_SSE_MUL_F32P_RR : InstrItinClass;
+def IIC_SSE_MUL_F32P_RM : InstrItinClass;
+def IIC_SSE_MUL_F64P_RR : InstrItinClass;
+def IIC_SSE_MUL_F64P_RM : InstrItinClass;
+def IIC_SSE_DIV_F32P_RR : InstrItinClass;
+def IIC_SSE_DIV_F32P_RM : InstrItinClass;
+def IIC_SSE_DIV_F64P_RR : InstrItinClass;
+def IIC_SSE_DIV_F64P_RM : InstrItinClass;
+
+def IIC_SSE_COMIS_RR : InstrItinClass;
+def IIC_SSE_COMIS_RM : InstrItinClass;
+
+def IIC_SSE_HADDSUB_RR : InstrItinClass;
+def IIC_SSE_HADDSUB_RM : InstrItinClass;
+
+def IIC_SSE_BIT_P_RR  : InstrItinClass;
+def IIC_SSE_BIT_P_RM  : InstrItinClass;
+
+def IIC_SSE_INTALU_P_RR  : InstrItinClass;
+def IIC_SSE_INTALU_P_RM  : InstrItinClass;
+def IIC_SSE_INTALUQ_P_RR  : InstrItinClass;
+def IIC_SSE_INTALUQ_P_RM  : InstrItinClass;
+
+def IIC_SSE_INTMUL_P_RR : InstrItinClass;
+def IIC_SSE_INTMUL_P_RM : InstrItinClass;
+
+def IIC_SSE_INTSH_P_RR : InstrItinClass;
+def IIC_SSE_INTSH_P_RM : InstrItinClass;
+def IIC_SSE_INTSH_P_RI : InstrItinClass;
+
+def IIC_SSE_INTSHDQ_P_RI : InstrItinClass;
+
+def IIC_SSE_SHUFP : InstrItinClass;
+def IIC_SSE_PSHUF_RI : InstrItinClass;
+def IIC_SSE_PSHUF_MI : InstrItinClass;
+
+def IIC_SSE_UNPCK : InstrItinClass;
+
+def IIC_SSE_MOVMSK : InstrItinClass;
+def IIC_SSE_MASKMOV : InstrItinClass;
+
+def IIC_SSE_PEXTRW : InstrItinClass;
+def IIC_SSE_PINSRW : InstrItinClass;
+
+def IIC_SSE_PABS_RR : InstrItinClass;
+def IIC_SSE_PABS_RM : InstrItinClass;
+
+def IIC_SSE_SQRTPS_RR : InstrItinClass;
+def IIC_SSE_SQRTPS_RM : InstrItinClass;
+def IIC_SSE_SQRTSS_RR : InstrItinClass;
+def IIC_SSE_SQRTSS_RM : InstrItinClass;
+def IIC_SSE_SQRTPD_RR : InstrItinClass;
+def IIC_SSE_SQRTPD_RM : InstrItinClass;
+def IIC_SSE_SQRTSD_RR : InstrItinClass;
+def IIC_SSE_SQRTSD_RM : InstrItinClass;
+
+def IIC_SSE_RSQRTPS_RR : InstrItinClass;
+def IIC_SSE_RSQRTPS_RM : InstrItinClass;
+def IIC_SSE_RSQRTSS_RR : InstrItinClass;
+def IIC_SSE_RSQRTSS_RM : InstrItinClass;
+
+def IIC_SSE_RCPP_RR : InstrItinClass;
+def IIC_SSE_RCPP_RM : InstrItinClass;
+def IIC_SSE_RCPS_RR : InstrItinClass;
+def IIC_SSE_RCPS_RM : InstrItinClass;
+
+def IIC_SSE_MOV_S_RR : InstrItinClass;
+def IIC_SSE_MOV_S_RM : InstrItinClass;
+def IIC_SSE_MOV_S_MR : InstrItinClass;
+
+def IIC_SSE_MOVA_P_RR : InstrItinClass;
+def IIC_SSE_MOVA_P_RM : InstrItinClass;
+def IIC_SSE_MOVA_P_MR : InstrItinClass;
+
+def IIC_SSE_MOVU_P_RR : InstrItinClass;
+def IIC_SSE_MOVU_P_RM : InstrItinClass;
+def IIC_SSE_MOVU_P_MR : InstrItinClass;
+
+def IIC_SSE_MOVDQ : InstrItinClass;
+def IIC_SSE_MOVD_ToGP : InstrItinClass;
+def IIC_SSE_MOVQ_RR : InstrItinClass;
+
+def IIC_SSE_MOV_LH : InstrItinClass;
+
+def IIC_SSE_LDDQU : InstrItinClass;
+
+def IIC_SSE_MOVNT : InstrItinClass;
+
+def IIC_SSE_PHADDSUBD_RR : InstrItinClass;
+def IIC_SSE_PHADDSUBD_RM : InstrItinClass;
+def IIC_SSE_PHADDSUBSW_RR : InstrItinClass;
+def IIC_SSE_PHADDSUBSW_RM : InstrItinClass;
+def IIC_SSE_PHADDSUBW_RR : InstrItinClass;
+def IIC_SSE_PHADDSUBW_RM : InstrItinClass;
+def IIC_SSE_PSHUFB_RR : InstrItinClass;
+def IIC_SSE_PSHUFB_RM : InstrItinClass;
+def IIC_SSE_PSIGN_RR : InstrItinClass;
+def IIC_SSE_PSIGN_RM : InstrItinClass;
+
+def IIC_SSE_PMADD : InstrItinClass;
+def IIC_SSE_PMULHRSW : InstrItinClass;
+def IIC_SSE_PALIGNRR : InstrItinClass;
+def IIC_SSE_PALIGNRM : InstrItinClass;
+def IIC_SSE_MWAIT : InstrItinClass;
+def IIC_SSE_MONITOR : InstrItinClass;
+def IIC_SSE_MWAITX : InstrItinClass;
+def IIC_SSE_MONITORX : InstrItinClass;
+def IIC_SSE_CLZERO : InstrItinClass;
+
+def IIC_SSE_PREFETCH : InstrItinClass;
+def IIC_SSE_PAUSE : InstrItinClass;
+def IIC_SSE_LFENCE : InstrItinClass;
+def IIC_SSE_MFENCE : InstrItinClass;
+def IIC_SSE_SFENCE : InstrItinClass;
+def IIC_SSE_LDMXCSR : InstrItinClass;
+def IIC_SSE_STMXCSR : InstrItinClass;
+
+def IIC_SSE_CVT_PD_RR : InstrItinClass;
+def IIC_SSE_CVT_PD_RM : InstrItinClass;
+def IIC_SSE_CVT_PS_RR : InstrItinClass;
+def IIC_SSE_CVT_PS_RM : InstrItinClass;
+def IIC_SSE_CVT_PI2PS_RR : InstrItinClass;
+def IIC_SSE_CVT_PI2PS_RM : InstrItinClass;
+def IIC_SSE_CVT_Scalar_RR : InstrItinClass;
+def IIC_SSE_CVT_Scalar_RM : InstrItinClass;
+def IIC_SSE_CVT_SS2SI32_RM : InstrItinClass;
+def IIC_SSE_CVT_SS2SI32_RR : InstrItinClass;
+def IIC_SSE_CVT_SS2SI64_RM : InstrItinClass;
+def IIC_SSE_CVT_SS2SI64_RR : InstrItinClass;
+def IIC_SSE_CVT_SD2SI_RM : InstrItinClass;
+def IIC_SSE_CVT_SD2SI_RR : InstrItinClass;
+
+// MMX
+def IIC_MMX_MOV_MM_RM : InstrItinClass;
+def IIC_MMX_MOV_REG_MM : InstrItinClass;
+def IIC_MMX_MOVQ_RM : InstrItinClass;
+def IIC_MMX_MOVQ_RR : InstrItinClass;
+
+def IIC_MMX_ALU_RM : InstrItinClass;
+def IIC_MMX_ALU_RR : InstrItinClass;
+def IIC_MMX_ALUQ_RM : InstrItinClass;
+def IIC_MMX_ALUQ_RR : InstrItinClass;
+def IIC_MMX_PHADDSUBW_RM : InstrItinClass;
+def IIC_MMX_PHADDSUBW_RR : InstrItinClass;
+def IIC_MMX_PHADDSUBD_RM : InstrItinClass;
+def IIC_MMX_PHADDSUBD_RR : InstrItinClass;
+def IIC_MMX_PMUL : InstrItinClass;
+def IIC_MMX_MISC_FUNC_MEM : InstrItinClass;
+def IIC_MMX_MISC_FUNC_REG : InstrItinClass;
+def IIC_MMX_PSADBW : InstrItinClass;
+def IIC_MMX_SHIFT_RI : InstrItinClass;
+def IIC_MMX_SHIFT_RM : InstrItinClass;
+def IIC_MMX_SHIFT_RR : InstrItinClass;
+def IIC_MMX_UNPCK_H_RM : InstrItinClass;
+def IIC_MMX_UNPCK_H_RR : InstrItinClass;
+def IIC_MMX_UNPCK_L : InstrItinClass;
+def IIC_MMX_PCK_RM : InstrItinClass;
+def IIC_MMX_PCK_RR : InstrItinClass;
+def IIC_MMX_PSHUF : InstrItinClass;
+def IIC_MMX_PEXTR : InstrItinClass;
+def IIC_MMX_PINSRW : InstrItinClass;
+def IIC_MMX_MASKMOV : InstrItinClass;
+
+def IIC_MMX_CVT_PD_RR : InstrItinClass;
+def IIC_MMX_CVT_PD_RM : InstrItinClass;
+def IIC_MMX_CVT_PS_RR : InstrItinClass;
+def IIC_MMX_CVT_PS_RM : InstrItinClass;
+
+def IIC_CMPX_LOCK : InstrItinClass;
+def IIC_CMPX_LOCK_8 : InstrItinClass;
+def IIC_CMPX_LOCK_8B : InstrItinClass;
+def IIC_CMPX_LOCK_16B : InstrItinClass;
+
+def IIC_XADD_LOCK_MEM : InstrItinClass;
+def IIC_XADD_LOCK_MEM8 : InstrItinClass;
+
+def IIC_FILD : InstrItinClass;
+def IIC_FLD : InstrItinClass;
+def IIC_FLD80 : InstrItinClass;
+def IIC_FST : InstrItinClass;
+def IIC_FST80 : InstrItinClass;
+def IIC_FIST : InstrItinClass;
+def IIC_FLDZ : InstrItinClass;
+def IIC_FUCOM : InstrItinClass;
+def IIC_FUCOMI : InstrItinClass;
+def IIC_FCOMI : InstrItinClass;
+def IIC_FNSTSW : InstrItinClass;
+def IIC_FNSTCW : InstrItinClass;
+def IIC_FLDCW : InstrItinClass;
+def IIC_FNINIT : InstrItinClass;
+def IIC_FFREE : InstrItinClass;
+def IIC_FNCLEX : InstrItinClass;
+def IIC_WAIT : InstrItinClass;
+def IIC_FXAM : InstrItinClass;
+def IIC_FNOP : InstrItinClass;
+def IIC_FLDL : InstrItinClass;
+def IIC_F2XM1 : InstrItinClass;
+def IIC_FYL2X : InstrItinClass;
+def IIC_FPTAN : InstrItinClass;
+def IIC_FPATAN : InstrItinClass;
+def IIC_FXTRACT : InstrItinClass;
+def IIC_FPREM1 : InstrItinClass;
+def IIC_FPSTP : InstrItinClass;
+def IIC_FPREM : InstrItinClass;
+def IIC_FYL2XP1 : InstrItinClass;
+def IIC_FSINCOS : InstrItinClass;
+def IIC_FRNDINT : InstrItinClass;
+def IIC_FSCALE : InstrItinClass;
+def IIC_FCOMPP : InstrItinClass;
+def IIC_FXSAVE : InstrItinClass;
+def IIC_FXRSTOR : InstrItinClass;
+
+def IIC_FXCH : InstrItinClass;
+
+// System instructions
+def IIC_CPUID : InstrItinClass;
+def IIC_INT : InstrItinClass;
+def IIC_INT3 : InstrItinClass;
+def IIC_INVD : InstrItinClass;
+def IIC_INVLPG : InstrItinClass;
+def IIC_IRET : InstrItinClass;
+def IIC_HLT : InstrItinClass;
+def IIC_LXS : InstrItinClass;
+def IIC_LTR : InstrItinClass;
+def IIC_RDTSC : InstrItinClass;
+def IIC_RSM : InstrItinClass;
+def IIC_SIDT : InstrItinClass;
+def IIC_SGDT : InstrItinClass;
+def IIC_SLDT : InstrItinClass;
+def IIC_STR : InstrItinClass;
+def IIC_SWAPGS : InstrItinClass;
+def IIC_SYSCALL : InstrItinClass;
+def IIC_SYS_ENTER_EXIT : InstrItinClass;
+def IIC_IN_RR : InstrItinClass;
+def IIC_IN_RI : InstrItinClass;
+def IIC_OUT_RR : InstrItinClass;
+def IIC_OUT_IR : InstrItinClass;
+def IIC_INS : InstrItinClass;
+def IIC_LWP : InstrItinClass;
+def IIC_MOV_REG_DR : InstrItinClass;
+def IIC_MOV_DR_REG : InstrItinClass;
+def IIC_MOV_REG_CR : InstrItinClass;
+def IIC_MOV_CR_REG : InstrItinClass;
+def IIC_MOV_REG_SR : InstrItinClass;
+def IIC_MOV_MEM_SR : InstrItinClass;
+def IIC_MOV_SR_REG : InstrItinClass;
+def IIC_MOV_SR_MEM : InstrItinClass;
+def IIC_LAR_RM : InstrItinClass;
+def IIC_LAR_RR : InstrItinClass;
+def IIC_LSL_RM : InstrItinClass;
+def IIC_LSL_RR : InstrItinClass;
+def IIC_LGDT : InstrItinClass;
+def IIC_LIDT : InstrItinClass;
+def IIC_LLDT_REG : InstrItinClass;
+def IIC_LLDT_MEM : InstrItinClass;
+def IIC_PUSH_CS : InstrItinClass;
+def IIC_PUSH_SR : InstrItinClass;
+def IIC_POP_SR : InstrItinClass;
+def IIC_POP_SR_SS : InstrItinClass;
+def IIC_VERR : InstrItinClass;
+def IIC_VERW_REG : InstrItinClass;
+def IIC_VERW_MEM : InstrItinClass;
+def IIC_WRMSR : InstrItinClass;
+def IIC_RDMSR : InstrItinClass;
+def IIC_RDPMC : InstrItinClass;
+def IIC_SMSW : InstrItinClass;
+def IIC_LMSW_REG : InstrItinClass;
+def IIC_LMSW_MEM : InstrItinClass;
+def IIC_ENTER : InstrItinClass;
+def IIC_LEAVE : InstrItinClass;
+def IIC_POP_MEM : InstrItinClass;
+def IIC_POP_REG16 : InstrItinClass;
+def IIC_POP_REG : InstrItinClass;
+def IIC_POP_F : InstrItinClass;
+def IIC_POP_FD : InstrItinClass;
+def IIC_POP_A : InstrItinClass;
+def IIC_PUSH_IMM : InstrItinClass;
+def IIC_PUSH_MEM : InstrItinClass;
+def IIC_PUSH_REG : InstrItinClass;
+def IIC_PUSH_F : InstrItinClass;
+def IIC_PUSH_A : InstrItinClass;
+def IIC_BSWAP : InstrItinClass;
+def IIC_BIT_SCAN_MEM : InstrItinClass;
+def IIC_BIT_SCAN_REG : InstrItinClass;
+def IIC_MOVS : InstrItinClass;
+def IIC_STOS : InstrItinClass;
+def IIC_SCAS : InstrItinClass;
+def IIC_CMPS : InstrItinClass;
+def IIC_MOV : InstrItinClass;
+def IIC_MOV_MEM : InstrItinClass;
+def IIC_AHF : InstrItinClass;
+def IIC_BT_MI : InstrItinClass;
+def IIC_BT_MR : InstrItinClass;
+def IIC_BT_RI : InstrItinClass;
+def IIC_BT_RR : InstrItinClass;
+def IIC_BTX_MI : InstrItinClass;
+def IIC_BTX_MR : InstrItinClass;
+def IIC_BTX_RI : InstrItinClass;
+def IIC_BTX_RR : InstrItinClass;
+def IIC_XCHG_REG : InstrItinClass;
+def IIC_XCHG_MEM : InstrItinClass;
+def IIC_XADD_REG : InstrItinClass;
+def IIC_XADD_MEM : InstrItinClass;
+def IIC_CMPXCHG_MEM : InstrItinClass;
+def IIC_CMPXCHG_REG : InstrItinClass;
+def IIC_CMPXCHG_MEM8 : InstrItinClass;
+def IIC_CMPXCHG_REG8 : InstrItinClass;
+def IIC_CMPXCHG_8B : InstrItinClass;
+def IIC_CMPXCHG_16B : InstrItinClass;
+def IIC_LODS : InstrItinClass;
+def IIC_OUTS : InstrItinClass;
+def IIC_CLC : InstrItinClass;
+def IIC_CLD : InstrItinClass;
+def IIC_CLI : InstrItinClass;
+def IIC_CMC : InstrItinClass;
+def IIC_CLTS : InstrItinClass;
+def IIC_STC : InstrItinClass;
+def IIC_STI : InstrItinClass;
+def IIC_STD : InstrItinClass;
+def IIC_XLAT : InstrItinClass;
+def IIC_AAA : InstrItinClass;
+def IIC_AAD : InstrItinClass;
+def IIC_AAM : InstrItinClass;
+def IIC_AAS : InstrItinClass;
+def IIC_DAA : InstrItinClass;
+def IIC_DAS : InstrItinClass;
+def IIC_BOUND : InstrItinClass;
+def IIC_ARPL_REG : InstrItinClass;
+def IIC_ARPL_MEM : InstrItinClass;
+def IIC_MOVBE : InstrItinClass;
+def IIC_AES   : InstrItinClass;
+def IIC_BLEND_MEM : InstrItinClass;
+def IIC_BLEND_NOMEM : InstrItinClass;
+def IIC_CBW   : InstrItinClass;
+def IIC_CRC32_REG : InstrItinClass;
+def IIC_CRC32_MEM : InstrItinClass;
+def IIC_SSE_DPPD_RR : InstrItinClass;
+def IIC_SSE_DPPD_RM : InstrItinClass;
+def IIC_SSE_DPPS_RR : InstrItinClass;
+def IIC_SSE_DPPS_RM : InstrItinClass;
+def IIC_MMX_EMMS : InstrItinClass;
+def IIC_SSE_EXTRACTPS_RR : InstrItinClass;
+def IIC_SSE_EXTRACTPS_RM : InstrItinClass;
+def IIC_SSE_INSERTPS_RR : InstrItinClass;
+def IIC_SSE_INSERTPS_RM : InstrItinClass;
+def IIC_SSE_MPSADBW_RR : InstrItinClass;
+def IIC_SSE_MPSADBW_RM : InstrItinClass;
+def IIC_SSE_PMULLD_RR : InstrItinClass;
+def IIC_SSE_PMULLD_RM : InstrItinClass;
+def IIC_SSE_ROUNDPS_REG : InstrItinClass;
+def IIC_SSE_ROUNDPS_MEM : InstrItinClass;
+def IIC_SSE_ROUNDPD_REG : InstrItinClass;
+def IIC_SSE_ROUNDPD_MEM : InstrItinClass;
+def IIC_SSE_POPCNT_RR : InstrItinClass;
+def IIC_SSE_POPCNT_RM : InstrItinClass;
+def IIC_SSE_PCLMULQDQ_RR : InstrItinClass;
+def IIC_SSE_PCLMULQDQ_RM : InstrItinClass;
+
+def IIC_NOP : InstrItinClass;
+
+//===----------------------------------------------------------------------===//
+// Processor instruction itineraries.
+
+// IssueWidth is analogous to the number of decode units. Core and its
+// descendents, including Nehalem and SandyBridge have 4 decoders.
+// Resources beyond the decoder operate on micro-ops and are bufferred
+// so adjacent micro-ops don't directly compete.
+//
+// MicroOpBufferSize > 1 indicates that RAW dependencies can be
+// decoded in the same cycle. The value 32 is a reasonably arbitrary
+// number of in-flight instructions.
+//
+// HighLatency=10 is optimistic. X86InstrInfo::isHighLatencyDef
+// indicates high latency opcodes. Alternatively, InstrItinData
+// entries may be included here to define specific operand
+// latencies. Since these latencies are not used for pipeline hazards,
+// they do not need to be exact.
+//
+// The GenericX86Model contains no instruction itineraries
+// and disables PostRAScheduler.
+class GenericX86Model : SchedMachineModel {
+  let IssueWidth = 4;
+  let MicroOpBufferSize = 32;
+  let LoadLatency = 4;
+  let HighLatency = 10;
+  let PostRAScheduler = 0;
+  let CompleteModel = 0;
+}
+
+def GenericModel : GenericX86Model;
+
+// Define a model with the PostRAScheduler enabled.
+def GenericPostRAModel : GenericX86Model {
+  let PostRAScheduler = 1;
+}
+
+include "X86ScheduleAtom.td"
+include "X86SchedSandyBridge.td"
+include "X86SchedHaswell.td"
+include "X86ScheduleSLM.td"
+include "X86ScheduleBtVer2.td"
+

Modified: llvm/trunk/lib/Target/X86/X86Subtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.cpp?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Subtarget.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86Subtarget.cpp Wed May  3 10:18:34 2017
@@ -265,6 +265,7 @@ void X86Subtarget::initializeEnvironment
   HasFMA4 = false;
   HasXOP = false;
   HasTBM = false;
+  HasLWP = false;
   HasMOVBE = false;
   HasRDRAND = false;
   HasF16C = false;

Modified: llvm/trunk/lib/Target/X86/X86Subtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.h?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Subtarget.h (original)
+++ llvm/trunk/lib/Target/X86/X86Subtarget.h Wed May  3 10:18:34 2017
@@ -124,6 +124,9 @@ protected:
   /// Target has TBM instructions.
   bool HasTBM;
 
+  /// Target has LWP instructions
+  bool HasLWP;
+
   /// True if the processor has the MOVBE instruction.
   bool HasMOVBE;
 
@@ -447,6 +450,7 @@ public:
   bool hasAnyFMA() const { return hasFMA() || hasFMA4(); }
   bool hasXOP() const { return HasXOP; }
   bool hasTBM() const { return HasTBM; }
+  bool hasLWP() const { return HasLWP; }
   bool hasMOVBE() const { return HasMOVBE; }
   bool hasRDRAND() const { return HasRDRAND; }
   bool hasF16C() const { return HasF16C; }

Added: llvm/trunk/test/CodeGen/X86/lwp-intrinsics-x86_64.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/lwp-intrinsics-x86_64.ll?rev=302028&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/lwp-intrinsics-x86_64.ll (added)
+++ llvm/trunk/test/CodeGen/X86/lwp-intrinsics-x86_64.ll Wed May  3 10:18:34 2017
@@ -0,0 +1,49 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+lwp | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver1 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver2 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver3 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver4 | FileCheck %s --check-prefix=X64
+
+define i8 @test_lwpins64_rri(i64 %a0, i32 %a1) nounwind {
+; X64-LABEL: test_lwpins64_rri:
+; X64:       # BB#0:
+; X64-NEXT:    lwpins $-1985229329, %esi, %rdi # imm = 0x89ABCDEF
+; X64-NEXT:    setb %al
+; X64-NEXT:    retq
+  %1 = tail call i8 @llvm.x86.lwpins64(i64 %a0, i32 %a1, i32 2309737967)
+  ret i8 %1
+}
+
+define i8 @test_lwpins64_rmi(i64 %a0, i32 *%p1) nounwind {
+; X64-LABEL: test_lwpins64_rmi:
+; X64:       # BB#0:
+; X64-NEXT:    lwpins $1985229328, (%rsi), %rdi # imm = 0x76543210
+; X64-NEXT:    setb %al
+; X64-NEXT:    retq
+  %a1 = load i32, i32 *%p1
+  %1 = tail call i8 @llvm.x86.lwpins64(i64 %a0, i32 %a1, i32 1985229328)
+  ret i8 %1
+}
+
+define void @test_lwpval64_rri(i64 %a0, i32 %a1) nounwind {
+; X64-LABEL: test_lwpval64_rri:
+; X64:       # BB#0:
+; X64-NEXT:    lwpval $-19088744, %esi, %rdi # imm = 0xFEDCBA98
+; X64-NEXT:    retq
+  tail call void @llvm.x86.lwpval64(i64 %a0, i32 %a1, i32 4275878552)
+  ret void
+}
+
+define void @test_lwpval64_rmi(i64 %a0, i32 *%p1) nounwind {
+; X64-LABEL: test_lwpval64_rmi:
+; X64:       # BB#0:
+; X64-NEXT:    lwpval $305419896, (%rsi), %rdi # imm = 0x12345678
+; X64-NEXT:    retq
+  %a1 = load i32, i32 *%p1
+  tail call void @llvm.x86.lwpval64(i64 %a0, i32 %a1, i32 305419896)
+  ret void
+}
+
+declare i8 @llvm.x86.lwpins64(i64, i32, i32) nounwind
+declare void @llvm.x86.lwpval64(i64, i32, i32) nounwind

Added: llvm/trunk/test/CodeGen/X86/lwp-intrinsics.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/lwp-intrinsics.ll?rev=302028&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/lwp-intrinsics.ll (added)
+++ llvm/trunk/test/CodeGen/X86/lwp-intrinsics.ll Wed May  3 10:18:34 2017
@@ -0,0 +1,121 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=i686-unknown -mattr=+lwp | FileCheck %s --check-prefix=X86
+; RUN: llc < %s -mtriple=i686-unknown -mcpu=bdver1 | FileCheck %s --check-prefix=X86
+; RUN: llc < %s -mtriple=i686-unknown -mcpu=bdver2 | FileCheck %s --check-prefix=X86
+; RUN: llc < %s -mtriple=i686-unknown -mcpu=bdver3 | FileCheck %s --check-prefix=X86
+; RUN: llc < %s -mtriple=i686-unknown -mcpu=bdver4 | FileCheck %s --check-prefix=X86
+; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+lwp | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver1 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver2 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver3 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=bdver4 | FileCheck %s --check-prefix=X64
+
+define void @test_llwpcb(i8 *%a0) nounwind {
+; X86-LABEL: test_llwpcb:
+; X86:       # BB#0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    llwpcb %eax
+; X86-NEXT:    retl
+;
+; X64-LABEL: test_llwpcb:
+; X64:       # BB#0:
+; X64-NEXT:    llwpcb %rdi
+; X64-NEXT:    retq
+  tail call void @llvm.x86.llwpcb(i8 *%a0)
+  ret void
+}
+
+define i8* @test_slwpcb(i8 *%a0) nounwind {
+; X86-LABEL: test_slwpcb:
+; X86:       # BB#0:
+; X86-NEXT:    slwpcb %eax
+; X86-NEXT:    retl
+;
+; X64-LABEL: test_slwpcb:
+; X64:       # BB#0:
+; X64-NEXT:    slwpcb %rax
+; X64-NEXT:    retq
+  %1 = tail call i8* @llvm.x86.slwpcb()
+  ret i8 *%1
+}
+
+define i8 @test_lwpins32_rri(i32 %a0, i32 %a1) nounwind {
+; X86-LABEL: test_lwpins32_rri:
+; X86:       # BB#0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    addl %ecx, %ecx
+; X86-NEXT:    lwpins $-1985229329, %ecx, %eax # imm = 0x89ABCDEF
+; X86-NEXT:    setb %al
+; X86-NEXT:    retl
+;
+; X64-LABEL: test_lwpins32_rri:
+; X64:       # BB#0:
+; X64-NEXT:    addl %esi, %esi
+; X64-NEXT:    lwpins $-1985229329, %esi, %edi # imm = 0x89ABCDEF
+; X64-NEXT:    setb %al
+; X64-NEXT:    retq
+  %1 = add i32 %a1, %a1
+  %2 = tail call i8 @llvm.x86.lwpins32(i32 %a0, i32 %1, i32 2309737967)
+  ret i8 %2
+}
+
+define i8 @test_lwpins32_rmi(i32 %a0, i32 *%p1) nounwind {
+; X86-LABEL: test_lwpins32_rmi:
+; X86:       # BB#0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    lwpins $1985229328, (%eax), %ecx # imm = 0x76543210
+; X86-NEXT:    setb %al
+; X86-NEXT:    retl
+;
+; X64-LABEL: test_lwpins32_rmi:
+; X64:       # BB#0:
+; X64-NEXT:    lwpins $1985229328, (%rsi), %edi # imm = 0x76543210
+; X64-NEXT:    setb %al
+; X64-NEXT:    retq
+  %a1 = load i32, i32 *%p1
+  %1 = tail call i8 @llvm.x86.lwpins32(i32 %a0, i32 %a1, i32 1985229328)
+  ret i8 %1
+}
+
+define void @test_lwpval32_rri(i32 %a0, i32 %a1) nounwind {
+; X86-LABEL: test_lwpval32_rri:
+; X86:       # BB#0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    addl %ecx, %ecx
+; X86-NEXT:    lwpval $-19088744, %ecx, %eax # imm = 0xFEDCBA98
+; X86-NEXT:    retl
+;
+; X64-LABEL: test_lwpval32_rri:
+; X64:       # BB#0:
+; X64-NEXT:    addl %esi, %esi
+; X64-NEXT:    lwpval $-19088744, %esi, %edi # imm = 0xFEDCBA98
+; X64-NEXT:    retq
+  %1 = add i32 %a1, %a1
+  tail call void @llvm.x86.lwpval32(i32 %a0, i32 %1, i32 4275878552)
+  ret void
+}
+
+define void @test_lwpval32_rmi(i32 %a0, i32 *%p1) nounwind {
+; X86-LABEL: test_lwpval32_rmi:
+; X86:       # BB#0:
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT:    lwpval $305419896, (%eax), %ecx # imm = 0x12345678
+; X86-NEXT:    retl
+;
+; X64-LABEL: test_lwpval32_rmi:
+; X64:       # BB#0:
+; X64-NEXT:    lwpval $305419896, (%rsi), %edi # imm = 0x12345678
+; X64-NEXT:    retq
+  %a1 = load i32, i32 *%p1
+  tail call void @llvm.x86.lwpval32(i32 %a0, i32 %a1, i32 305419896)
+  ret void
+}
+
+declare void @llvm.x86.llwpcb(i8*) nounwind
+declare i8* @llvm.x86.slwpcb() nounwind
+declare i8 @llvm.x86.lwpins32(i32, i32, i32) nounwind
+declare void @llvm.x86.lwpval32(i32, i32, i32) nounwind

Modified: llvm/trunk/test/MC/Disassembler/X86/x86-32.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Disassembler/X86/x86-32.txt?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/test/MC/Disassembler/X86/x86-32.txt (original)
+++ llvm/trunk/test/MC/Disassembler/X86/x86-32.txt Wed May  3 10:18:34 2017
@@ -773,3 +773,21 @@
 
 #CHECK: getsec
 0x0f 0x37
+
+#CHECK: llwpcb %ecx
+0x8f 0xe9 0x78 0x12 0xc1
+
+#CHECK: slwpcb %ecx
+0x8f 0xe9 0x78 0x12 0xc9
+
+# CHECK: lwpins $305419896, %ebx, %eax
+0x8f 0xea 0x78 0x12 0xc3 0x78 0x56 0x34 0x12
+
+# CHECK: lwpins $591751049, (%esp), %edx
+0x8f 0xea 0x68 0x12 0x04 0x24 0x89 0x67 0x45 0x23
+
+# CHECK: lwpval $1737075661, %ebx, %eax
+0x8f 0xea 0x78 0x12 0xcb 0xcd 0xab 0x89 0x67
+
+# CHECK: lwpval $2309737967, (%esp), %edx
+0x8f 0xea 0x68 0x12 0x0c 0x24 0xef 0xcd 0xab 0x89

Modified: llvm/trunk/test/MC/Disassembler/X86/x86-64.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Disassembler/X86/x86-64.txt?rev=302028&r1=302027&r2=302028&view=diff
==============================================================================
--- llvm/trunk/test/MC/Disassembler/X86/x86-64.txt (original)
+++ llvm/trunk/test/MC/Disassembler/X86/x86-64.txt Wed May  3 10:18:34 2017
@@ -456,3 +456,27 @@
 
 # CHECK: callq -32769
 0xe8 0xff 0x7f 0xff 0xff
+
+# CHECK: llwpcb %rax
+0x8f 0xe9 0xf8 0x12 0xc0
+
+# CHECK: slwpcb %rax
+0x8f 0xe9 0xf8 0x12 0xc8
+
+# CHECK: lwpins $305419896, %ebx, %rax
+0x8f 0xea 0xf8 0x12 0xc3 0x78 0x56 0x34 0x12
+
+# CHECK: lwpins $591751049, (%rsp), %rdx
+0x8f 0xea 0xe8 0x12 0x04 0x24 0x89 0x67 0x45 0x23
+
+# CHECK: lwpins $591751049, (%esp), %edx
+0x67 0x8f 0xea 0x68 0x12 0x04 0x24 0x89 0x67 0x45 0x23
+
+# CHECK: lwpval $1737075661, %ebx, %rax
+0x8f 0xea 0xf8 0x12 0xcb 0xcd 0xab 0x89 0x67
+
+# CHECK: lwpval $2309737967, (%rsp), %rdx
+0x8f 0xea 0xe8 0x12 0x0c 0x24 0xef 0xcd 0xab 0x89
+
+# CHECK: lwpval $2309737967, (%esp), %edx
+0x67 0x8f 0xea 0x68 0x12 0x0c 0x24 0xef 0xcd 0xab 0x89

Added: llvm/trunk/test/MC/X86/lwp-x86_64.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/X86/lwp-x86_64.s?rev=302028&view=auto
==============================================================================
--- llvm/trunk/test/MC/X86/lwp-x86_64.s (added)
+++ llvm/trunk/test/MC/X86/lwp-x86_64.s Wed May  3 10:18:34 2017
@@ -0,0 +1,25 @@
+# RUN: llvm-mc -triple x86_64-unknown-unknown --show-encoding %s | FileCheck %s --check-prefix=CHECK
+
+llwpcb %rcx
+# CHECK: llwpcb %rcx
+# CHECK: encoding: [0x8f,0xe9,0xf8,0x12,0xc1]
+
+slwpcb %rax
+# CHECK: slwpcb %rax
+# CHECK: encoding: [0x8f,0xe9,0xf8,0x12,0xc8]
+
+lwpins $305419896, %ebx, %rax
+# CHECK: lwpins $305419896, %ebx, %rax
+# CHECK: encoding: [0x8f,0xea,0xf8,0x12,0xc3,0x78,0x56,0x34,0x12]
+
+lwpins $591751049, (%rsp), %rdx
+# CHECK: lwpins $591751049, (%rsp), %rdx
+# CHECK: encoding: [0x8f,0xea,0xe8,0x12,0x04,0x24,0x89,0x67,0x45,0x23]
+
+lwpval $1737075661, %ebx, %rax
+# CHECK: lwpval $1737075661, %ebx, %rax
+# CHECK: encoding: [0x8f,0xea,0xf8,0x12,0xcb,0xcd,0xab,0x89,0x67]
+
+lwpval $2309737967, (%rsp), %rdx
+# CHECK: lwpval $2309737967, (%rsp), %rdx
+# CHECK: encoding: [0x8f,0xea,0xe8,0x12,0x0c,0x24,0xef,0xcd,0xab,0x89]

Added: llvm/trunk/test/MC/X86/lwp.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/X86/lwp.s?rev=302028&view=auto
==============================================================================
--- llvm/trunk/test/MC/X86/lwp.s (added)
+++ llvm/trunk/test/MC/X86/lwp.s Wed May  3 10:18:34 2017
@@ -0,0 +1,32 @@
+# RUN: llvm-mc -triple i686-unknown-unknown --show-encoding %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-X86
+# RUN: llvm-mc -triple x86_64-unknown-unknown --show-encoding %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-X64
+
+llwpcb %ecx
+# CHECK: llwpcb %ecx
+# CHECK-X86: encoding: [0x8f,0xe9,0x78,0x12,0xc1]
+# CHECK-X64: encoding: [0x8f,0xe9,0x78,0x12,0xc1]
+
+slwpcb %eax
+# CHECK: slwpcb %eax
+# CHECK-X86: encoding: [0x8f,0xe9,0x78,0x12,0xc8]
+# CHECK-X64: encoding: [0x8f,0xe9,0x78,0x12,0xc8]
+
+lwpins $305419896, %ebx, %eax
+# CHECK: lwpins $305419896, %ebx, %eax
+# CHECK-X86: encoding: [0x8f,0xea,0x78,0x12,0xc3,0x78,0x56,0x34,0x12]
+# CHECK-X64: encoding: [0x8f,0xea,0x78,0x12,0xc3,0x78,0x56,0x34,0x12]
+
+lwpins $591751049, (%esp), %edx
+# CHECK: lwpins $591751049, (%esp), %edx
+# CHECK-X86: encoding: [0x8f,0xea,0x68,0x12,0x04,0x24,0x89,0x67,0x45,0x23]
+# CHECK-X64: encoding: [0x67,0x8f,0xea,0x68,0x12,0x04,0x24,0x89,0x67,0x45,0x23]
+
+lwpval $1737075661, %ebx, %eax
+# CHECK: lwpval $1737075661, %ebx, %eax
+# CHECK-X86: encoding: [0x8f,0xea,0x78,0x12,0xcb,0xcd,0xab,0x89,0x67]
+# CHECK-X64: encoding: [0x8f,0xea,0x78,0x12,0xcb,0xcd,0xab,0x89,0x67]
+
+lwpval $2309737967, (%esp), %edx
+# CHECK: lwpval $2309737967, (%esp), %edx
+# CHECK-X86: encoding: [0x8f,0xea,0x68,0x12,0x0c,0x24,0xef,0xcd,0xab,0x89]
+# CHECK-X64: encoding: [0x67,0x8f,0xea,0x68,0x12,0x0c,0x24,0xef,0xcd,0xab,0x89]




More information about the llvm-commits mailing list