[llvm] r308854 - [CodeGen][X86] Fuchsia supports sincos* libcalls and sin+cos->sincos optimization

[Petr Hosek via llvm-commits]

Author: phosek
Date: Sun Jul 23 15:30:00 2017
New Revision: 308854

URL: http://llvm.org/viewvc/llvm-project?rev=308854&view=rev
Log:
[CodeGen][X86] Fuchsia supports sincos* libcalls and sin+cos->sincos optimization

Patch by Roland McGrath

Differential Revision: https://reviews.llvm.org/D35748

Modified:
    llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp
    llvm/trunk/lib/Target/X86/X86Subtarget.cpp
    llvm/trunk/test/CodeGen/X86/sincos-opt.ll

Modified: llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp?rev=308854&r1=308853&r2=308854&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp (original)
+++ llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp Sun Jul 23 15:30:00 2017
@@ -97,7 +97,7 @@ static void InitLibcallNames(const char
     Names[RTLIB::FPROUND_F32_F16] = "__gnu_f2h_ieee";
   }
 
-  if (TT.isGNUEnvironment()) {
+  if (TT.isGNUEnvironment() || TT.isOSFuchsia()) {
     Names[RTLIB::SINCOS_F32] = "sincosf";
     Names[RTLIB::SINCOS_F64] = "sincos";
     Names[RTLIB::SINCOS_F80] = "sincosl";

Modified: llvm/trunk/lib/Target/X86/X86Subtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.cpp?rev=308854&r1=308853&r2=308854&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Subtarget.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86Subtarget.cpp Sun Jul 23 15:30:00 2017
@@ -189,9 +189,12 @@ const char *X86Subtarget::getBZeroEntry(
 }
 
 bool X86Subtarget::hasSinCos() const {
-  return getTargetTriple().isMacOSX() &&
-    !getTargetTriple().isMacOSXVersionLT(10, 9) &&
-    is64Bit();
+  if (getTargetTriple().isMacOSX()) {
+    return !getTargetTriple().isMacOSXVersionLT(10, 9) && is64Bit();
+  } else if (getTargetTriple().isOSFuchsia()) {
+    return true;
+  }
+  return false;
 }
 
 /// Return true if the subtarget allows calls to immediate address.

Modified: llvm/trunk/test/CodeGen/X86/sincos-opt.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/sincos-opt.ll?rev=308854&r1=308853&r2=308854&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/sincos-opt.ll (original)
+++ llvm/trunk/test/CodeGen/X86/sincos-opt.ll Sun Jul 23 15:30:00 2017
@@ -3,6 +3,8 @@
 ; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu -mcpu=core2 | FileCheck %s --check-prefix=GNU_SINCOS
 ; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu -mcpu=core2 -enable-unsafe-fp-math | FileCheck %s --check-prefix=GNU_SINCOS_FASTMATH
 ; RUN: llc < %s -mtriple=x86_64-pc-linux-gnux32 -mcpu=core2 -enable-unsafe-fp-math | FileCheck %s --check-prefix=GNU_SINCOS_FASTMATH
+; RUN: llc < %s -mtriple=x86_64-fuchsia -mcpu=core2 | FileCheck %s --check-prefix=GNU_SINCOS
+; RUN: llc < %s -mtriple=x86_64-fuchsia -mcpu=core2 -enable-unsafe-fp-math | FileCheck %s --check-prefix=GNU_SINCOS_FASTMATH
 
 ; Combine sin / cos into a single call unless they may write errno (as
 ; captured by readnone attrbiute, controlled by clang -fmath-errno