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[X86] Merge the template method selectAddrOfGatherScatterNode into selectVectorAddr. NFCI

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Just need to initialize a couple variables differently based on the node type. No need for a whole separate template method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317915 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2017-11-10 19:26:04 +00:00
parent 23bd33afd4
commit 33a8b75763
1 changed files with 16 additions and 25 deletions
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41
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -204,11 +204,6 @@ namespace {
bool selectVectorAddr(SDNode *Parent, SDValue N, SDValue &Base,
SDValue &Scale, SDValue &Index, SDValue &Disp,
SDValue &Segment);
template <class GatherScatterSDNode>
bool selectAddrOfGatherScatterNode(GatherScatterSDNode *Parent, SDValue N,
SDValue &Base, SDValue &Scale,
SDValue &Index, SDValue &Disp,
SDValue &Segment);
bool selectMOV64Imm32(SDValue N, SDValue &Imm);
bool selectLEAAddr(SDValue N, SDValue &Base,
SDValue &Scale, SDValue &Index, SDValue &Disp,
@ -1507,12 +1502,23 @@ bool X86DAGToDAGISel::matchAddressBase(SDValue N, X86ISelAddressMode &AM) {
return false;
}
template <class GatherScatterSDNode>
bool X86DAGToDAGISel::selectAddrOfGatherScatterNode(
GatherScatterSDNode *Mgs, SDValue N, SDValue &Base, SDValue &Scale,
SDValue &Index, SDValue &Disp, SDValue &Segment) {
bool X86DAGToDAGISel::selectVectorAddr(SDNode *Parent, SDValue N, SDValue &Base,
SDValue &Scale, SDValue &Index,
SDValue &Disp, SDValue &Segment) {
unsigned ScalarSize;
if (auto Mgs = dyn_cast<MaskedGatherScatterSDNode>(Parent)) {
Base = Mgs->getBasePtr();
Index = Mgs->getIndex();
ScalarSize = Mgs->getValue().getScalarValueSizeInBits();
} else {
auto X86Gather = cast<X86MaskedGatherSDNode>(Parent);
Base = X86Gather->getBasePtr();
Index = X86Gather->getIndex();
ScalarSize = X86Gather->getValue().getScalarValueSizeInBits();
}
X86ISelAddressMode AM;
unsigned AddrSpace = Mgs->getPointerInfo().getAddrSpace();
unsigned AddrSpace = cast<MemSDNode>(Parent)->getPointerInfo().getAddrSpace();
// AddrSpace 256 -> GS, 257 -> FS, 258 -> SS.
if (AddrSpace == 256)
AM.Segment = CurDAG->getRegister(X86::GS, MVT::i16);
@ -1522,9 +1528,6 @@ bool X86DAGToDAGISel::selectAddrOfGatherScatterNode(
AM.Segment = CurDAG->getRegister(X86::SS, MVT::i16);
SDLoc DL(N);
Base = Mgs->getBasePtr();
Index = Mgs->getIndex();
unsigned ScalarSize = Mgs->getValue().getScalarValueSizeInBits();
Scale = getI8Imm(ScalarSize/8, DL);
// If Base is 0, the whole address is in index and the Scale is 1
@ -1542,18 +1545,6 @@ bool X86DAGToDAGISel::selectAddrOfGatherScatterNode(
return true;
}
bool X86DAGToDAGISel::selectVectorAddr(SDNode *Parent, SDValue N, SDValue &Base,
SDValue &Scale, SDValue &Index,
SDValue &Disp, SDValue &Segment) {
if (auto Mgs = dyn_cast<MaskedGatherScatterSDNode>(Parent))
return selectAddrOfGatherScatterNode<MaskedGatherScatterSDNode>(
Mgs, N, Base, Scale, Index, Disp, Segment);
if (auto X86Gather = dyn_cast<X86MaskedGatherSDNode>(Parent))
return selectAddrOfGatherScatterNode<X86MaskedGatherSDNode>(
X86Gather, N, Base, Scale, Index, Disp, Segment);
return false;
}
/// Returns true if it is able to pattern match an addressing mode.
/// It returns the operands which make up the maximal addressing mode it can
/// match by reference.