diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/CodeGen/TargetLoweringBase.cpp | 15 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/darwin-bzero.ll | 9 |
2 files changed, 18 insertions, 6 deletions
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp index 224ae1a3236..b29a33ac1c1 100644 --- a/llvm/lib/CodeGen/TargetLoweringBase.cpp +++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp @@ -132,9 +132,18 @@ void TargetLoweringBase::InitLibcalls(const Triple &TT) { setLibcallName(RTLIB::FPEXT_F16_F32, "__extendhfsf2"); setLibcallName(RTLIB::FPROUND_F32_F16, "__truncsfhf2"); - // Darwin 10 and higher has an optimized __bzero. - if (!TT.isMacOSX() || !TT.isMacOSXVersionLT(10, 6) || TT.isArch64Bit()) { - setLibcallName(RTLIB::BZERO, TT.isAArch64() ? "bzero" : "__bzero"); + // Some darwins have an optimized __bzero/bzero function. + switch (TT.getArch()) { + case Triple::x86: + case Triple::x86_64: + if (TT.isMacOSX() && !TT.isMacOSXVersionLT(10, 6)) + setLibcallName(RTLIB::BZERO, "__bzero"); + break; + case Triple::aarch64: + setLibcallName(RTLIB::BZERO, "bzero"); + break; + default: + break; } if (darwinHasSinCos(TT)) { diff --git a/llvm/test/CodeGen/X86/darwin-bzero.ll b/llvm/test/CodeGen/X86/darwin-bzero.ll index 410d67ff0ec..3d03ec677a0 100644 --- a/llvm/test/CodeGen/X86/darwin-bzero.ll +++ b/llvm/test/CodeGen/X86/darwin-bzero.ll @@ -1,10 +1,13 @@ -; RUN: llc < %s -mtriple=i386-apple-darwin10 | FileCheck %s -; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck %s +; RUN: llc < %s -mtriple=i386-apple-darwin10 | FileCheck -check-prefixes=CHECK,BZERO %s +; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck -check-prefixes=CHECK,BZERO %s +; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck -check-prefixes=CHECK,NOBZERO %s +; RUN: llc < %s -mtriple=x86_64-apple-ios10.0-simulator | FileCheck -check-prefixes=CHECK,NOBZERO %s declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind ; CHECK-LABEL: foo: -; CHECK: {{calll|callq}} ___bzero +; BZERO: {{calll|callq}} ___bzero +; NOBZERO-NOT: bzero define void @foo(i8* %p, i32 %len) { call void @llvm.memset.p0i8.i32(i8* %p, i8 0, i32 %len, i32 1, i1 false) ret void |
