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Add 64-bit versions of LEA_ADDiu and DynAlloc. Modify LowerDYNAMIC_STACKALLOC.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144370 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2011-11-11 04:06:38 +00:00
parent 642b109713
commit c742e4fc90
3 changed files with 27 additions and 12 deletions
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10
lib/Target/Mips/MipsISelLowering.cpp
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@ -1295,6 +1295,7 @@ LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const
{
MachineFunction &MF = DAG.getMachineFunction();
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
unsigned SP = IsN64 ? Mips::SP_64 : Mips::SP;
assert(getTargetMachine().getFrameLowering()->getStackAlignment() >=
cast<ConstantSDNode>(Op.getOperand(2).getNode())->getZExtValue() &&
@ -1306,20 +1307,19 @@ LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const
DebugLoc dl = Op.getDebugLoc();
// Get a reference from Mips stack pointer
SDValue StackPointer = DAG.getCopyFromReg(Chain, dl, Mips::SP, MVT::i32);
SDValue StackPointer = DAG.getCopyFromReg(Chain, dl, SP, getPointerTy());
// Subtract the dynamic size from the actual stack size to
// obtain the new stack size.
SDValue Sub = DAG.getNode(ISD::SUB, dl, MVT::i32, StackPointer, Size);
SDValue Sub = DAG.getNode(ISD::SUB, dl, getPointerTy(), StackPointer, Size);
// The Sub result contains the new stack start address, so it
// must be placed in the stack pointer register.
Chain = DAG.getCopyToReg(StackPointer.getValue(1), dl, Mips::SP, Sub,
SDValue());
Chain = DAG.getCopyToReg(StackPointer.getValue(1), dl, SP, Sub, SDValue());
// This node always has two return values: a new stack pointer
// value and a chain
SDVTList VTLs = DAG.getVTList(MVT::i32, MVT::Other);
SDVTList VTLs = DAG.getVTList(getPointerTy(), MVT::Other);
SDValue Ptr = DAG.getFrameIndex(MipsFI->getDynAllocFI(), getPointerTy());
SDValue Ops[] = { Chain, Ptr, Chain.getValue(1) };