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| author | Eric Christopher <echristo@apple.com> | 2011-03-11 01:10:05 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2011-03-11 01:10:05 +0000 |
| commit | acc448ebfececd35a424d24f10dba95654a50f7e (patch) | |
| tree | 830bb722aed64bf84e254ba8b0bb7c4a0b8aaff1 /lib | |
| parent | 5705843fd151b9d701f9cf81edf0497a25aee53a (diff) | |
Merge r127441 from mainline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_29@127443 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 511cd31c64..4f8132d06b 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -221,7 +221,13 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) // X86 is weird, it always uses i8 for shift amounts and setcc results. setBooleanContents(ZeroOrOneBooleanContent); - setSchedulingPreference(Sched::ILP); + + // For 64-bit since we have so many registers use the ILP scheduler, for + // 32-bit code use the register pressure specific scheduling. + if (Subtarget->is64Bit()) + setSchedulingPreference(Sched::ILP); + else + setSchedulingPreference(Sched::RegPressure); setStackPointerRegisterToSaveRestore(X86StackPtr); if (Subtarget->isTargetWindows() && !Subtarget->isTargetCygMing()) { |