diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 9f487a6b0f..67ad99d3ce 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -182,6 +182,10 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setSchedulingPreference(Sched::RegPressure); setStackPointerRegisterToSaveRestore(X86StackPtr); + // Bypass i32 with i8 on Atom when compiling with O2 + if (Subtarget->hasSlowDivide() && TM.getOptLevel() >= CodeGenOpt::Default) + addBypassSlowDivType(Type::getInt32Ty(getGlobalContext()), Type::getInt8Ty(getGlobalContext())); + if (Subtarget->isTargetWindows() && !Subtarget->isTargetCygMing()) { // Setup Windows compiler runtime calls. setLibcallName(RTLIB::SDIV_I64, "_alldiv"); |