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| author | Evan Cheng <evan.cheng@apple.com> | 2011-03-30 23:44:13 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-03-30 23:44:13 +0000 |
| commit | ee9d45dd5510d859831f1c7f2e737f129785be9b (patch) | |
| tree | 35694452adc8162c7c7753b1ceb31b534c040096 /llvm/lib/Target | |
| parent | 280264b88972dfc781e286ad22dcd1101cd69b6a (diff) | |
| download | bcm5719-llvm-ee9d45dd5510d859831f1c7f2e737f129785be9b.tar.gz bcm5719-llvm-ee9d45dd5510d859831f1c7f2e737f129785be9b.zip | |
Don't try to create zero-sized stack objects.
llvm-svn: 128586
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 5 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index 11ff6bf9654..16b110f39b0 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -2391,8 +2391,9 @@ ARMTargetLowering::LowerFormalArguments(SDValue Chain, // In case of tail call optimization mark all arguments mutable. Since they // could be overwritten by lowering of arguments in case of a tail call. if (Flags.isByVal()) { - int FI = MFI->CreateFixedObject(Flags.getByValSize(), - VA.getLocMemOffset(), false); + unsigned Bytes = Flags.getByValSize(); + if (Bytes == 0) Bytes = 1; // Don't create zero-sized stack objects. + int FI = MFI->CreateFixedObject(Bytes, VA.getLocMemOffset(), false); InVals.push_back(DAG.getFrameIndex(FI, getPointerTy())); } else { int FI = MFI->CreateFixedObject(VA.getLocVT().getSizeInBits()/8, diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 7d301e5e079..cd1d2019d2a 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -1639,8 +1639,9 @@ X86TargetLowering::LowerMemArgument(SDValue Chain, // In case of tail call optimization mark all arguments mutable. Since they // could be overwritten by lowering of arguments in case of a tail call. if (Flags.isByVal()) { - int FI = MFI->CreateFixedObject(Flags.getByValSize(), - VA.getLocMemOffset(), isImmutable); + unsigned Bytes = Flags.getByValSize(); + if (Bytes == 0) Bytes = 1; // Don't create zero-sized stack objects. + int FI = MFI->CreateFixedObject(Bytes, VA.getLocMemOffset(), isImmutable); return DAG.getFrameIndex(FI, getPointerTy()); } else { int FI = MFI->CreateFixedObject(ValVT.getSizeInBits()/8, |
