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Change initial value of MaxCallFrameSize. MipsFI::getMaxCallFrameSize() should

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return 0 if there are no function calls made. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132065 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2011-05-25 17:52:48 +00:00
parent edacba83dc
commit f15f498507
3 changed files with 7 additions and 7 deletions
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2
lib/Target/Mips/MipsFrameLowering.cpp
View File

@ -154,7 +154,7 @@ void MipsFrameLowering::emitPrologue(MachineFunction &MF) const {
unsigned StackAlign = getStackAlignment();
unsigned LocalVarAreaOffset = MipsFI->needGPSaveRestore() ?
(MFI->getObjectOffset(MipsFI->getGPFI()) + RegSize) :
MFI->getMaxCallFrameSize();
MipsFI->getMaxCallFrameSize();
unsigned StackSize = AlignOffset(LocalVarAreaOffset, StackAlign) +
AlignOffset(MFI->getStackSize(), StackAlign);

4
lib/Target/Mips/MipsISelLowering.cpp
View File

@ -1322,7 +1322,7 @@ MipsTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
if (IsPIC) {
// Function can have an arbitrary number of calls, so
// hold the LastArgStackLoc with the biggest offset.
int MaxCallFrameSize = MipsFI->getMaxCallFrameSize();
unsigned MaxCallFrameSize = MipsFI->getMaxCallFrameSize();
unsigned NextStackOffset = CCInfo.getNextStackOffset();
// For O32, a minimum of four words (16 bytes) of argument space is
@ -1330,7 +1330,7 @@ MipsTargetLowering::LowerCall(SDValue Chain, SDValue Callee,
if (Subtarget->isABI_O32())
NextStackOffset = std::max(NextStackOffset, (unsigned)16);
if (MaxCallFrameSize < (int)NextStackOffset) {
if (MaxCallFrameSize < NextStackOffset) {
MipsFI->setMaxCallFrameSize(NextStackOffset);
// $gp restore slot must be aligned.

8
lib/Target/Mips/MipsMachineFunction.h
View File

@ -48,13 +48,13 @@ private:
std::pair<int, int> InArgFIRange, OutArgFIRange;
int GPFI; // Index of the frame object for restoring $gp
bool HasCall; // True if function has a function call.
int MaxCallFrameSize;
unsigned MaxCallFrameSize;
public:
MipsFunctionInfo(MachineFunction& MF)
: SRetReturnReg(0), GlobalBaseReg(0),
VarArgsFrameIndex(0), InArgFIRange(std::make_pair(-1, 0)),
OutArgFIRange(std::make_pair(-1, 0)), GPFI(0), HasCall(false),
MaxCallFrameSize(-1)
MaxCallFrameSize(0)
{}
bool isInArgFI(int FI) const {
@ -89,8 +89,8 @@ public:
bool hasCall() const { return HasCall; }
void setHasCall() { HasCall = true; }
int getMaxCallFrameSize() const { return MaxCallFrameSize; }
void setMaxCallFrameSize(int S) { MaxCallFrameSize = S; }
unsigned getMaxCallFrameSize() const { return MaxCallFrameSize; }
void setMaxCallFrameSize(unsigned S) { MaxCallFrameSize = S; }
};
} // end of namespace llvm