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6a500d5451
Fixes the overflow case of llvm.*absdiff intrinsic also updats the tests and LangRef.rst accordingly. Differential Revision: http://reviews.llvm.org/D11678 llvm-svn: 248483
30 lines
879 B
LLVM
30 lines
879 B
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
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declare <16 x i16> @llvm.sabsdiff.v16i16(<16 x i16>, <16 x i16>)
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define <16 x i16> @test_sabsdiff_v16i16_expand(<16 x i16> %a1, <16 x i16> %a2) {
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; CHECK-LABEL: test_sabsdiff_v16i16_expand:
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; CHECK: # BB#0:
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; CHECK: psubw
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; CHECK: pxor
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; CHECK: pcmpgtw
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; CHECK: movdqa
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; CHECK: pandn
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; CHECK: pxor
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; CHECK: psubw
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; CHECK: pcmpeqd
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; CHECK: pxor
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; CHECK: pandn
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; CHECK: por
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; CHECK: pcmpgtw
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; CHECK-DAG: psubw {{%xmm[0-9]+}}, [[SRC:%xmm[0-9]+]]
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; CHECK-DAG: pxor {{%xmm[0-9]+}}, [[DST:%xmm[0-9]+]]
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; CHECK: pandn [[SRC]], [[DST]]
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; CHECK: por
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; CHECK: movdqa
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; CHECK: retq
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%1 = call <16 x i16> @llvm.sabsdiff.v16i16(<16 x i16> %a1, <16 x i16> %a2)
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ret <16 x i16> %1
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}
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