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ByVal stack slot alignment should be at least as large as pointer ABI alignment.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45995 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-01-15 03:14:05 +00:00
parent 5daafa9b1b
commit c67e6e8e82
1 changed files with 3 additions and 1 deletions
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4
lib/CodeGen/SelectionDAG/CallingConvLower.cpp
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@@ -15,6 +15,7 @@
#include "llvm/CodeGen/CallingConvLower.h" #include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/SelectionDAGNodes.h" #include "llvm/CodeGen/SelectionDAGNodes.h"
#include "llvm/Target/MRegisterInfo.h" #include "llvm/Target/MRegisterInfo.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetMachine.h"
using namespace llvm; using namespace llvm;
@@ -31,11 +32,12 @@ CCState::CCState(unsigned CC, bool isVarArg, const TargetMachine &tm,
void CCState::HandleStruct(unsigned ValNo, MVT::ValueType ValVT, void CCState::HandleStruct(unsigned ValNo, MVT::ValueType ValVT,
MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo, MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,
unsigned ArgFlags) { unsigned ArgFlags) {
unsigned MinAlign = TM.getTargetData()->getPointerABIAlignment();
unsigned Align = 1 << ((ArgFlags & ISD::ParamFlags::ByValAlign) >> unsigned Align = 1 << ((ArgFlags & ISD::ParamFlags::ByValAlign) >>
ISD::ParamFlags::ByValAlignOffs); ISD::ParamFlags::ByValAlignOffs);
unsigned Size = (ArgFlags & ISD::ParamFlags::ByValSize) >> unsigned Size = (ArgFlags & ISD::ParamFlags::ByValSize) >>
ISD::ParamFlags::ByValSizeOffs; ISD::ParamFlags::ByValSizeOffs;
unsigned Offset = AllocateStack(Size, Align); unsigned Offset = AllocateStack(Size, std::max(MinAlign, Align));
addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo)); addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
} }