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32-bit int space was not accounted for properly in lowerCall.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31966 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2006-11-28 14:53:52 +00:00
parent 861d9d6863
commit e9bd7b2e03
1 changed files with 8 additions and 3 deletions
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11
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -1086,6 +1086,7 @@ static SDOperand LowerFORMAL_ARGUMENTS(SDOperand Op, SelectionDAG &DAG,
MVT::ValueType PtrVT = DAG.getTargetLoweringInfo().getPointerTy(); MVT::ValueType PtrVT = DAG.getTargetLoweringInfo().getPointerTy();
bool isPPC64 = PtrVT == MVT::i64; bool isPPC64 = PtrVT == MVT::i64;
unsigned PtrByteSize = isPPC64 ? 8 : 4;
unsigned ArgOffset = PPCFrameInfo::getLinkageSize(isPPC64); unsigned ArgOffset = PPCFrameInfo::getLinkageSize(isPPC64);
@ -1128,7 +1129,7 @@ static SDOperand LowerFORMAL_ARGUMENTS(SDOperand Op, SelectionDAG &DAG,
default: assert(0 && "Unhandled argument type!"); default: assert(0 && "Unhandled argument type!");
case MVT::i32: case MVT::i32:
// All int arguments reserve stack space. // All int arguments reserve stack space.
ArgOffset += isPPC64 ? 8 : 4; ArgOffset += PtrByteSize;
if (GPR_idx != Num_GPR_Regs) { if (GPR_idx != Num_GPR_Regs) {
unsigned VReg = RegMap->createVirtualRegister(&PPC::GPRCRegClass); unsigned VReg = RegMap->createVirtualRegister(&PPC::GPRCRegClass);
@ -1266,6 +1267,7 @@ static SDNode *isBLACompatibleAddress(SDOperand Op, SelectionDAG &DAG) {
return DAG.getConstant((int)C->getValue() >> 2, MVT::i32).Val; return DAG.getConstant((int)C->getValue() >> 2, MVT::i32).Val;
} }
#include <iostream>
static SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG) { static SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG) {
SDOperand Chain = Op.getOperand(0); SDOperand Chain = Op.getOperand(0);
@ -1287,8 +1289,11 @@ static SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG) {
unsigned NumBytes = PPCFrameInfo::getLinkageSize(isPPC64); unsigned NumBytes = PPCFrameInfo::getLinkageSize(isPPC64);
// Add up all the space actually used. // Add up all the space actually used.
for (unsigned i = 0; i != NumOps; ++i) for (unsigned i = 0; i != NumOps; ++i) {
NumBytes += MVT::getSizeInBits(Op.getOperand(5+2*i).getValueType())/8; unsigned ArgSize =MVT::getSizeInBits(Op.getOperand(5+2*i).getValueType())/8;
ArgSize = std::max(ArgSize, PtrByteSize);
NumBytes += ArgSize;
}
// The prolog code of the callee may store up to 8 GPR argument registers to // The prolog code of the callee may store up to 8 GPR argument registers to
// the stack, allowing va_start to index over them in memory if its varargs. // the stack, allowing va_start to index over them in memory if its varargs.