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| author | Evan Cheng <evan.cheng@apple.com> | 2008-02-23 01:47:44 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-02-23 01:47:44 +0000 |
| commit | b2a0abce1ed97d6642f91e10114f22e824d933cb (patch) | |
| tree | dc7f20d447d0bbd2edeb1925a2fa4c8dc3fcf661 /lib/Target/X86/X86InstrInfo.cpp | |
| parent | e9fabd94ab9aaa5853c0c3d659e62b1a1f2cc27b (diff) | |
| download | llvm-b2a0abce1ed97d6642f91e10114f22e824d933cb.tar.gz llvm-b2a0abce1ed97d6642f91e10114f22e824d933cb.tar.bz2 llvm-b2a0abce1ed97d6642f91e10114f22e824d933cb.tar.xz | |
No need recognize load from a fixed argument slot as re-materializable. LiveIntervalAnalysis already handles it as a special case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47522 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 082b896b37..aae99bcfa1 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -760,18 +760,6 @@ bool X86InstrInfo::isReallyTriviallyReMaterializable(MachineInstr *MI) const { return isPICBase; } - // If this is a load from a fixed argument slot, we know the value is - // invariant across the whole function, because we don't redefine argument - // values. -#if 0 - // FIXME: This is disabled due to a remat bug. rdar://5671644 - if (MI->getOperand(1).isFI()) { - const MachineFrameInfo &MFI=*MI->getParent()->getParent()->getFrameInfo(); - int Idx = MI->getOperand(1).getIndex(); - return MFI.isFixedObjectIndex(Idx) && MFI.isImmutableObjectIndex(Idx); - } -#endif - return false; } // All other instructions marked M_REMATERIALIZABLE are always trivially |