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2e313ba01d
pcmpeqd, pshufd, pshufd, pand is cheaper than unpack + cmpq, sbbq, cmpq, sbbq + pack. Small speedup on loop-vectorized viterbi (-march=core2). llvm-svn: 171063
70 lines
1.5 KiB
LLVM
70 lines
1.5 KiB
LLVM
; RUN: llc < %s -march=x86 -mcpu=yonah -mtriple=i386-apple-darwin | FileCheck %s
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define <4 x i32> @test1(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test1:
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; CHECK: pcmpgtd
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; CHECK: ret
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%C = icmp sgt <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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define <4 x i32> @test2(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test2:
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; CHECK: pcmp
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; CHECK: pcmp
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; CHECK: pxor
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; CHECK: ret
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%C = icmp sge <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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define <4 x i32> @test3(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test3:
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; CHECK: pcmpgtd
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; CHECK: movdqa
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; CHECK: ret
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%C = icmp slt <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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define <4 x i32> @test4(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK: test4:
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; CHECK: movdqa
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; CHECK: pcmpgtd
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; CHECK: ret
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%C = icmp ugt <4 x i32> %A, %B
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%D = sext <4 x i1> %C to <4 x i32>
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ret <4 x i32> %D
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}
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define <2 x i64> @test5(<2 x i64> %A, <2 x i64> %B) nounwind {
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; CHECK: test5:
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; CHECK: pcmpeqd
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; CHECK: pshufd $-11
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; CHECK: pshufd $-96
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; CHECK: pand
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; CHECK: ret
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%C = icmp eq <2 x i64> %A, %B
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%D = sext <2 x i1> %C to <2 x i64>
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ret <2 x i64> %D
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}
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define <2 x i64> @test6(<2 x i64> %A, <2 x i64> %B) nounwind {
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; CHECK: test6:
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; CHECK: pcmpeqd
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; CHECK: pshufd $-11
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; CHECK: pshufd $-96
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; CHECK: pand
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; CHECK: pcmpeqd
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; CHECK: pxor
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; CHECK: ret
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%C = icmp ne <2 x i64> %A, %B
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%D = sext <2 x i1> %C to <2 x i64>
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ret <2 x i64> %D
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}
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