[llvm-commits] CVS: llvm/lib/Target/PowerPC/PPC32TargetMachine.h PowerPCSubtarget.cpp PowerPCSubtarget.h PowerPCTargetMachine.cpp PowerPCTargetMachine.h

Jim Laskey jlaskey at apple.com
Thu Sep 1 14:38:38 PDT 2005



Changes in directory llvm/lib/Target/PowerPC:

PPC32TargetMachine.h updated: 1.7 -> 1.8
PowerPCSubtarget.cpp updated: 1.3 -> 1.4
PowerPCSubtarget.h updated: 1.2 -> 1.3
PowerPCTargetMachine.cpp updated: 1.65 -> 1.66
PowerPCTargetMachine.h updated: 1.14 -> 1.15
---
Log message:


1. Use SubtargetFeatures in llc/lli.

2. Propagate feature "string" to all targets.

3. Implement use of SubtargetFeatures in PowerPCTargetSubtarget.


---
Diffs of the changes:  (+94 -16)

 PPC32TargetMachine.h     |    3 +
 PowerPCSubtarget.cpp     |   92 +++++++++++++++++++++++++++++++++++++++++------
 PowerPCSubtarget.h       |    4 +-
 PowerPCTargetMachine.cpp |    8 ++--
 PowerPCTargetMachine.h   |    3 +
 5 files changed, 94 insertions(+), 16 deletions(-)


Index: llvm/lib/Target/PowerPC/PPC32TargetMachine.h
diff -u llvm/lib/Target/PowerPC/PPC32TargetMachine.h:1.7 llvm/lib/Target/PowerPC/PPC32TargetMachine.h:1.8
--- llvm/lib/Target/PowerPC/PPC32TargetMachine.h:1.7	Thu Apr 21 18:20:02 2005
+++ llvm/lib/Target/PowerPC/PPC32TargetMachine.h	Thu Sep  1 16:38:20 2005
@@ -28,7 +28,8 @@
   PPC32JITInfo JITInfo;
 
 public:
-  PPC32TargetMachine(const Module &M, IntrinsicLowering *IL);
+  PPC32TargetMachine(const Module &M, IntrinsicLowering *IL,
+                     const std::string &FS);
   virtual const PPC32InstrInfo   *getInstrInfo() const { return &InstrInfo; }
   virtual const MRegisterInfo *getRegisterInfo() const {
     return &InstrInfo.getRegisterInfo();


Index: llvm/lib/Target/PowerPC/PowerPCSubtarget.cpp
diff -u llvm/lib/Target/PowerPC/PowerPCSubtarget.cpp:1.3 llvm/lib/Target/PowerPC/PowerPCSubtarget.cpp:1.4
--- llvm/lib/Target/PowerPC/PowerPCSubtarget.cpp:1.3	Fri Aug  5 17:05:03 2005
+++ llvm/lib/Target/PowerPC/PowerPCSubtarget.cpp	Thu Sep  1 16:38:21 2005
@@ -15,6 +15,8 @@
 #include "PowerPC.h"
 #include "llvm/Module.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Target/SubtargetFeature.h"
+
 using namespace llvm;
 PPCTargetEnum llvm::PPCTarget = TargetDefault;
 
@@ -30,42 +32,112 @@
                              cl::desc("Enable optimizations for GP cpus"));
 }
 
+enum PowerPCFeature {
+  PowerPCFeature64Bit   = 1 << 0,
+  PowerPCFeatureAltivec = 1 << 1,
+  PowerPCFeatureFSqrt   = 1 << 2,
+  PowerPCFeatureGPUL    = 1 << 3,
+};
+
+/// Sorted (by key) array of values for CPU subtype.
+static const SubtargetFeatureKV PowerPCSubTypeKV[] = {
+  { "601"    , 0 },
+  { "602"    , 0 },
+  { "603"    , 0 },
+  { "603e"   , 0 },
+  { "603ev"  , 0 },
+  { "604"    , 0 },
+  { "604e"   , 0 },
+  { "620"    , 0 },
+  { "7400"   , PowerPCFeatureAltivec },
+  { "7450"   , PowerPCFeatureAltivec },
+  { "750"    , 0 },
+  { "970"    , PowerPCFeature64Bit | PowerPCFeatureAltivec |
+               PowerPCFeatureFSqrt | PowerPCFeatureGPUL },
+  { "g3"     , 0 },
+  { "g4"     , PowerPCFeatureAltivec },
+  { "g4+"    , PowerPCFeatureAltivec },
+  { "g5"     , PowerPCFeature64Bit | PowerPCFeatureAltivec |
+               PowerPCFeatureFSqrt | PowerPCFeatureGPUL },
+  { "generic", 0 }
+};
+/// Length of PowerPCSubTypeKV.
+static const unsigned PowerPCSubTypeKVSize = sizeof(PowerPCSubTypeKV)
+                                             / sizeof(SubtargetFeatureKV);
+
+/// Sorted (by key) array of values for CPU features.
+static SubtargetFeatureKV PowerPCFeatureKV[] = {
+  { "64bit"  , PowerPCFeature64Bit   },
+  { "altivec", PowerPCFeatureAltivec },
+  { "fsqrt"  , PowerPCFeatureFSqrt },
+  { "gpul"   , PowerPCFeatureGPUL    }
+ };
+/// Length of PowerPCFeatureKV.
+static const unsigned PowerPCFeatureKVSize = sizeof(PowerPCFeatureKV)
+                                          / sizeof(SubtargetFeatureKV);
+
+
 #if defined(__APPLE__)
 #include <mach/mach.h>
 #include <mach/mach_host.h>
 #include <mach/host_info.h>
 #include <mach/machine.h>
 
-static boolean_t IsGP() {
+/// GetCurrentPowerPCFeatures - Returns the current CPUs features.
+static const char *GetCurrentPowerPCCPU() {
   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 ((hostInfo.cpu_type == CPU_TYPE_POWERPC) &&
-          (hostInfo.cpu_subtype == CPU_SUBTYPE_POWERPC_970));
-} 
+  return "generic";
+}
 #endif
 
-PPCSubtarget::PPCSubtarget(const Module &M)
+PPCSubtarget::PPCSubtarget(const Module &M, const std::string &FS)
   : StackAlignment(16), IsGigaProcessor(false), IsAIX(false), IsDarwin(false) {
 
-    // Set the boolean corresponding to the current target triple, or the default
+  // Determine default and user specified characteristics
+  std::string CPU;
+#if defined(__APPLE__)
+  CPU = GetCurrentPowerPCCPU();
+#endif
+  uint32_t Bits =
+  SubtargetFeatures::Parse(FS, CPU,
+                           PowerPCSubTypeKV, PowerPCSubTypeKVSize,
+                           PowerPCFeatureKV, PowerPCFeatureKVSize);
+  IsGigaProcessor = (Bits & PowerPCFeatureGPUL) != 0;
+
+  // Set the boolean corresponding to the current target triple, or the default
   // if one cannot be determined, to true.
   const std::string& TT = M.getTargetTriple();
   if (TT.length() > 5) {
     IsDarwin = TT.find("darwin") != std::string::npos;
-#if defined(__APPLE__)
-    IsGigaProcessor = IsGP();
-#endif
   } else if (TT.empty()) {
 #if defined(_POWER)
     IsAIX = true;
 #elif defined(__APPLE__)
     IsDarwin = true;
-    IsGigaProcessor = IsGP();
 #endif
   }
   


Index: llvm/lib/Target/PowerPC/PowerPCSubtarget.h
diff -u llvm/lib/Target/PowerPC/PowerPCSubtarget.h:1.2 llvm/lib/Target/PowerPC/PowerPCSubtarget.h:1.3
--- llvm/lib/Target/PowerPC/PowerPCSubtarget.h:1.2	Fri Aug  5 17:05:03 2005
+++ llvm/lib/Target/PowerPC/PowerPCSubtarget.h	Thu Sep  1 16:38:21 2005
@@ -16,6 +16,8 @@
 
 #include "llvm/Target/TargetSubtarget.h"
 
+#include <string>
+
 namespace llvm {
 class Module;
 
@@ -33,7 +35,7 @@
   /// This constructor initializes the data members to match that
   /// of the specified module.
   ///
-  PPCSubtarget(const Module &M);
+  PPCSubtarget(const Module &M, const std::string &FS);
 
   /// getStackAlignment - Returns the minimum alignment known to hold of the
   /// stack frame on entry to the function and which must be maintained by every


Index: llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp
diff -u llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.65 llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.66
--- llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.65	Thu Aug 18 18:53:15 2005
+++ llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp	Thu Sep  1 16:38:21 2005
@@ -43,9 +43,10 @@
 PowerPCTargetMachine::PowerPCTargetMachine(const std::string &name,
                                            IntrinsicLowering *IL,
                                            const Module &M,
+                                           const std::string &FS,
                                            const TargetData &TD,
                                            const PowerPCFrameInfo &TFI)
-: TargetMachine(name, IL, TD), FrameInfo(TFI), Subtarget(M) {
+: TargetMachine(name, IL, TD), FrameInfo(TFI), Subtarget(M, FS) {
   if (TargetDefault == PPCTarget) {
     if (Subtarget.isAIX()) PPCTarget = TargetAIX;
     if (Subtarget.isDarwin()) PPCTarget = TargetDarwin;
@@ -154,8 +155,9 @@
 
 /// PowerPCTargetMachine ctor - Create an ILP32 architecture model
 ///
-PPC32TargetMachine::PPC32TargetMachine(const Module &M, IntrinsicLowering *IL)
-  : PowerPCTargetMachine(PPC32ID, IL, M,
+PPC32TargetMachine::PPC32TargetMachine(const Module &M, IntrinsicLowering *IL,
+                                       const std::string &FS)
+  : PowerPCTargetMachine(PPC32ID, IL, M, FS,
                          TargetData(PPC32ID,false,4,4,4,4,4,4,2,1,1),
                          PowerPCFrameInfo(*this, false)), JITInfo(*this) {}
 


Index: llvm/lib/Target/PowerPC/PowerPCTargetMachine.h
diff -u llvm/lib/Target/PowerPC/PowerPCTargetMachine.h:1.14 llvm/lib/Target/PowerPC/PowerPCTargetMachine.h:1.15
--- llvm/lib/Target/PowerPC/PowerPCTargetMachine.h:1.14	Thu Aug  4 02:12:08 2005
+++ llvm/lib/Target/PowerPC/PowerPCTargetMachine.h	Thu Sep  1 16:38:21 2005
@@ -30,7 +30,8 @@
   PPCSubtarget      Subtarget;
 protected:
   PowerPCTargetMachine(const std::string &name, IntrinsicLowering *IL,
-                       const Module &M, const TargetData &TD, 
+                       const Module &M, const std::string &FS,
+                       const TargetData &TD, 
                        const PowerPCFrameInfo &TFI);
 public:
   virtual const TargetFrameInfo  *getFrameInfo() const { return &FrameInfo; }






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