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R600: Calculate store mask instead of using switch.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203527 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2014-03-11 01:38:53 +00:00
parent 67ad03b1ef
commit 0e5b4860b5
1 changed files with 3 additions and 17 deletions
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20
lib/Target/R600/AMDGPUISelLowering.cpp
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@@ -630,17 +630,8 @@ SDValue AMDGPUTargetLowering::MergeVectorStore(const SDValue &Op,
unsigned MemEltBits = MemEltVT.getSizeInBits(); unsigned MemEltBits = MemEltVT.getSizeInBits();
unsigned MemNumElements = MemVT.getVectorNumElements(); unsigned MemNumElements = MemVT.getVectorNumElements();
EVT PackedVT = EVT::getIntegerVT(*DAG.getContext(), MemVT.getSizeInBits()); EVT PackedVT = EVT::getIntegerVT(*DAG.getContext(), MemVT.getSizeInBits());
SDValue Mask; SDValue Mask = DAG.getConstant((1 << MemEltBits) - 1, PackedVT);
switch(MemEltBits) {
case 8:
Mask = DAG.getConstant(0xFF, PackedVT);
break;
case 16:
Mask = DAG.getConstant(0xFFFF, PackedVT);
break;
default:
llvm_unreachable("Cannot lower this vector store");
}
SDValue PackedValue; SDValue PackedValue;
for (unsigned i = 0; i < MemNumElements; ++i) { for (unsigned i = 0; i < MemNumElements; ++i) {
EVT ElemVT = VT.getVectorElementType(); EVT ElemVT = VT.getVectorElementType();
@@ -725,12 +716,7 @@ SDValue AMDGPUTargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const {
return SDValue(); return SDValue();
unsigned Mask = 0; unsigned Mask = (1 << Load->getMemoryVT().getSizeInBits()) - 1;
if (Load->getMemoryVT() == MVT::i8) {
Mask = 0xff;
} else if (Load->getMemoryVT() == MVT::i16) {
Mask = 0xffff;
}
SDValue Ptr = DAG.getNode(ISD::SRL, DL, MVT::i32, Load->getBasePtr(), SDValue Ptr = DAG.getNode(ISD::SRL, DL, MVT::i32, Load->getBasePtr(),
DAG.getConstant(2, MVT::i32)); DAG.getConstant(2, MVT::i32));
SDValue Ret = DAG.getNode(AMDGPUISD::REGISTER_LOAD, DL, Op.getValueType(), SDValue Ret = DAG.getNode(AMDGPUISD::REGISTER_LOAD, DL, Op.getValueType(),