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Pass the correct call frame size to callseq_start node. This is needed to

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replace uses of function getMaxCallFrameSize defined in MipsFunctionInfo with
the one MachineFrameInfo has.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160841 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2012-07-26 23:27:01 +00:00
parent 7971de4178
commit 480eeb5431
1 changed files with 10 additions and 15 deletions
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25
lib/Target/Mips/MipsISelLowering.cpp
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@ -2674,6 +2674,14 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
// Get a count of how many bytes are to be pushed on the stack.
unsigned NextStackOffset = CCInfo.getNextStackOffset();
unsigned StackAlignment = TFL->getStackAlignment();
NextStackOffset = RoundUpToAlignment(NextStackOffset, StackAlignment);
// Update size of the maximum argument space.
// For O32, a minimum of four words (16 bytes) of argument space is
// allocated.
if (IsO32 && (CallConv != CallingConv::Fast))
NextStackOffset = std::max(NextStackOffset, (unsigned)16);
// Chain is the output chain of the last Load/Store or CopyToReg node.
// ByValChain is the output chain of the last Memcpy node created for copying
@ -2687,24 +2695,12 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
// of dynamically allocated area on the stack.
int DynAllocFI = MipsFI->getDynAllocFI();
// Update size of the maximum argument space.
// For O32, a minimum of four words (16 bytes) of argument space is
// allocated.
if (IsO32 && (CallConv != CallingConv::Fast))
NextStackOffset = std::max(NextStackOffset, (unsigned)16);
unsigned MaxCallFrameSize = MipsFI->getMaxCallFrameSize();
if (MaxCallFrameSize < NextStackOffset) {
if (MipsFI->getMaxCallFrameSize() < NextStackOffset) {
MipsFI->setMaxCallFrameSize(NextStackOffset);
// Set the offsets relative to $sp of the $gp restore slot and dynamically
// allocated stack space. These offsets must be aligned to a boundary
// determined by the stack alignment of the ABI.
unsigned StackAlignment = TFL->getStackAlignment();
NextStackOffset = (NextStackOffset + StackAlignment - 1) /
StackAlignment * StackAlignment;
MFI->setObjectOffset(DynAllocFI, NextStackOffset);
}
@ -2933,8 +2929,7 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
InFlag = Chain.getValue(1);
// Create the CALLSEQ_END node.
Chain = DAG.getCALLSEQ_END(Chain,
DAG.getIntPtrConstant(NextStackOffset, true),
Chain = DAG.getCALLSEQ_END(Chain, NextStackOffsetVal,
DAG.getIntPtrConstant(0, true), InFlag);
InFlag = Chain.getValue(1);