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| author | Lauro Ramos Venancio <lauro.venancio@gmail.com> | 2007-02-23 20:32:57 +0000 |
|---|---|---|
| committer | Lauro Ramos Venancio <lauro.venancio@gmail.com> | 2007-02-23 20:32:57 +0000 |
| commit | 600c383e5c96d4b107b3e6ed4515eac25246cb02 (patch) | |
| tree | b2a83da14af6ef126095f9b967f7a7c657cf2c21 /lib/Target/ARM/ARMISelLowering.cpp | |
| parent | cae0a193e310050b6bb9cc4628b7151997126f60 (diff) | |
| download | llvm-600c383e5c96d4b107b3e6ed4515eac25246cb02.tar.gz llvm-600c383e5c96d4b107b3e6ed4515eac25246cb02.tar.bz2 llvm-600c383e5c96d4b107b3e6ed4515eac25246cb02.tar.xz | |
Fix stack alignment in functions with varargs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34532 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMISelLowering.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 90d02b82cf..f573198bae 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -831,13 +831,16 @@ ARMTargetLowering::LowerFORMAL_ARGUMENTS(SDOperand Op, SelectionDAG &DAG) { SSARegMap *RegMap = MF.getSSARegMap(); MachineFrameInfo *MFI = MF.getFrameInfo(); ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>(); - unsigned VARegSaveSize = (4 - NumGPRs) * 4; + unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment(); + unsigned VARegSize = (4 - NumGPRs) * 4; + unsigned VARegSaveSize = (VARegSize + Align - 1) & ~(Align - 1); if (VARegSaveSize) { // If this function is vararg, store any remaining integer argument regs // to their spots on the stack so that they may be loaded by deferencing // the result of va_next. AFI->setVarArgsRegSaveSize(VARegSaveSize); - VarArgsFrameIndex = MFI->CreateFixedObject(VARegSaveSize, ArgOffset); + VarArgsFrameIndex = MFI->CreateFixedObject(VARegSaveSize, ArgOffset + + VARegSaveSize - VARegSize); SDOperand FIN = DAG.getFrameIndex(VarArgsFrameIndex, getPointerTy()); SmallVector<SDOperand, 4> MemOps; |