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[Hexagon] Split CTPOP of vector pairs 

llvm-svn: 334109
This commit is contained in:
Krzysztof Parzyszek 2018-06-06 18:03:29 +00:00
parent a6cd1a994c
commit 0da1fe3770
2 changed files with 27 additions and 0 deletions
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1
llvm/lib/Target/Hexagon/HexagonISelLoweringHVX.cpp
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@ -1457,6 +1457,7 @@ HexagonTargetLowering::LowerHvxOperation(SDValue Op, SelectionDAG &DAG) const {
case ISD::LOAD:
case ISD::STORE:
return SplitHvxMemOp(Op, DAG);
case ISD::CTPOP:
case ISD::CTLZ:
case ISD::CTTZ:
case ISD::MUL:

26
llvm/test/CodeGen/Hexagon/autohvx/ctpop-split.ll Normal file
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@ -0,0 +1,26 @@
; RUN: llc -march=hexagon < %s | FileCheck %s
; Check if popcounts of vector pairs are properly split.
; CHECK-LABEL: f0:
; CHECK: v0.h = vpopcount(v0.h)
; CHECK: v1.h = vpopcount(v1.h)
define <64 x i16> @f0(<64 x i16> %a0) #0 {
%t0 = call <64 x i16> @llvm.ctpop.v64i32(<64 x i16> %a0)
ret <64 x i16> %t0
}
; CHECK-LABEL: f1:
; CHECK: v0.h = vpopcount(v0.h)
; CHECK: v1.h = vpopcount(v1.h)
define <128 x i16> @f1(<128 x i16> %a0) #1 {
%t0 = call <128 x i16> @llvm.ctpop.v128i32(<128 x i16> %a0)
ret <128 x i16> %t0
}
declare <64 x i16> @llvm.ctpop.v64i32(<64 x i16>) #0
declare <128 x i16> @llvm.ctpop.v128i32(<128 x i16>) #1
attributes #0 = { readnone nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length64b,-packets" }
attributes #1 = { readnone nounwind "target-cpu"="hexagonv60" "target-features"="+hvx,+hvx-length128b,-packets" }