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R600/SI: Use bcnt instruction for ctpop

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210567 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2014-06-10 19:18:21 +00:00
parent 81ff9cdedb
commit ee9772d9dd
7 changed files with 230 additions and 11 deletions
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12
lib/Target/R600/AMDGPUISelLowering.cpp
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@@ -220,12 +220,19 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
setOperationAction(ISD::FCOPYSIGN, MVT::f64, Expand);
}
for (MVT VT : { MVT::i32, MVT::i64 }) {
// TODO: Evergreen has BCNT_INT for CTPOP
setOperationAction(ISD::CTPOP, VT, Expand);
setOperationAction(ISD::CTTZ, VT, Expand);
setOperationAction(ISD::CTLZ, VT, Expand);
}
static const MVT::SimpleValueType IntTypes[] = {
MVT::v2i32, MVT::v4i32
};
for (MVT VT : IntTypes) {
//Expand the following operations for the current type by default
// Expand the following operations for the current type by default.
setOperationAction(ISD::ADD, VT, Expand);
setOperationAction(ISD::AND, VT, Expand);
setOperationAction(ISD::FP_TO_SINT, VT, Expand);
@@ -244,6 +251,9 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
setOperationAction(ISD::VSELECT, VT, Expand);
setOperationAction(ISD::XOR, VT, Expand);
setOperationAction(ISD::BSWAP, VT, Expand);
setOperationAction(ISD::CTPOP, VT, Expand);
setOperationAction(ISD::CTTZ, VT, Expand);
setOperationAction(ISD::CTLZ, VT, Expand);
}
static const MVT::SimpleValueType FloatTypes[] = {