diff options
| author | Anton Korobeynikov <asl@math.spbu.ru> | 2010-08-25 07:50:11 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2010-08-25 07:50:11 +0000 |
| commit | 9f7f83b861f6d03df81c440364ba10f55f6447d5 (patch) | |
| tree | 1604567403684fc72b1025e6f2bba3f25414200e /lib/Target/X86/X86ISelLowering.cpp | |
| parent | dc3d8b812fffd3f48986da5d161dcf282bfbb0b6 (diff) | |
Fix nasty mingw32 bug, which e.g. prevented llvm-gcc bootstrap there.
Mark _alloca call as clobberring EFLAGS, otherwise some DCE might remove
other flags-clobberring stuff (e.g. cmp instructions) occuring after
_alloca call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112034 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 7adaf9728d..dc1bab32f2 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -8930,7 +8930,8 @@ X86TargetLowering::EmitLoweredMingwAlloca(MachineInstr *MI, .addReg(X86::EAX, RegState::Implicit) .addReg(X86::ESP, RegState::Implicit) .addReg(X86::EAX, RegState::Define | RegState::Implicit) - .addReg(X86::ESP, RegState::Define | RegState::Implicit); + .addReg(X86::ESP, RegState::Define | RegState::Implicit) + .addReg(X86::EFLAGS, RegState::Define | RegState::Implicit); MI->eraseFromParent(); // The pseudo instruction is gone now. return BB; |