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fix a long standing wart: all the ComplexPattern's were being

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passed the root of the match, even though only a few patterns
actually needed this (one in X86, several in ARM [which should
be refactored anyway], and some in CellSPU that I don't feel 
like detangling).   Instead of requiring all ComplexPatterns to
take the dead root, have targets opt into getting the root by
putting SDNPWantRoot on the ComplexPattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114471 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-09-21 20:31:19 +00:00
parent 7c72707216
commit 52a261b3c1
20 changed files with 142 additions and 141 deletions
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14
lib/Target/Sparc/SparcISelDAGToDAG.cpp
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@@ -44,9 +44,8 @@ public:
SDNode *Select(SDNode *N);
// Complex Pattern Selectors.
bool SelectADDRrr(SDNode *Op, SDValue N, SDValue &R1, SDValue &R2);
bool SelectADDRri(SDNode *Op, SDValue N, SDValue &Base,
SDValue &Offset);
bool SelectADDRrr(SDValue N, SDValue &R1, SDValue &R2);
bool SelectADDRri(SDValue N, SDValue &Base, SDValue &Offset);
/// SelectInlineAsmMemoryOperand - Implement addressing mode selection for
/// inline asm expressions.
@@ -71,7 +70,7 @@ SDNode* SparcDAGToDAGISel::getGlobalBaseReg() {
return CurDAG->getRegister(GlobalBaseReg, TLI.getPointerTy()).getNode();
}
bool SparcDAGToDAGISel::SelectADDRri(SDNode *Op, SDValue Addr,
bool SparcDAGToDAGISel::SelectADDRri(SDValue Addr,
SDValue &Base, SDValue &Offset) {
if (FrameIndexSDNode *FIN = dyn_cast<FrameIndexSDNode>(Addr)) {
Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), MVT::i32);
@@ -112,8 +111,7 @@ bool SparcDAGToDAGISel::SelectADDRri(SDNode *Op, SDValue Addr,
return true;
}
bool SparcDAGToDAGISel::SelectADDRrr(SDNode *Op, SDValue Addr,
SDValue &R1, SDValue &R2) {
bool SparcDAGToDAGISel::SelectADDRrr(SDValue Addr, SDValue &R1, SDValue &R2) {
if (Addr.getOpcode() == ISD::FrameIndex) return false;
if (Addr.getOpcode() == ISD::TargetExternalSymbol ||
Addr.getOpcode() == ISD::TargetGlobalAddress)
@@ -196,8 +194,8 @@ SparcDAGToDAGISel::SelectInlineAsmMemoryOperand(const SDValue &Op,
switch (ConstraintCode) {
default: return true;
case 'm': // memory
if (!SelectADDRrr(Op.getNode(), Op, Op0, Op1))
SelectADDRri(Op.getNode(), Op, Op0, Op1);
if (!SelectADDRrr(Op, Op0, Op1))
SelectADDRri(Op, Op0, Op1);
break;
}