diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/horizontal-shuffle-2.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/horizontal-shuffle-2.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/horizontal-shuffle-2.ll b/llvm/test/CodeGen/X86/horizontal-shuffle-2.ll index 78c30e431574..9c5d7d4dd31b 100644 --- a/llvm/test/CodeGen/X86/horizontal-shuffle-2.ll +++ b/llvm/test/CodeGen/X86/horizontal-shuffle-2.ll @@ -171,6 +171,25 @@ define <4 x float> @test_unpacklo_hadd_v4f32_unary(<4 x float> %0) { ret <4 x float> %3 } +define <8 x i16> @PR51974(<8 x i16> %a0) { +; SSE-LABEL: PR51974: +; SSE: ## %bb.0: +; SSE-NEXT: movdqa %xmm0, %xmm1 +; SSE-NEXT: phaddw %xmm0, %xmm1 +; SSE-NEXT: phaddw %xmm0, %xmm1 +; SSE-NEXT: movdqa %xmm1, %xmm0 +; SSE-NEXT: ret{{[l|q]}} +; +; AVX-LABEL: PR51974: +; AVX: ## %bb.0: +; AVX-NEXT: vphaddw %xmm0, %xmm0, %xmm1 +; AVX-NEXT: vphaddw %xmm0, %xmm1, %xmm0 +; AVX-NEXT: ret{{[l|q]}} + %r0 = call <8 x i16> @llvm.x86.ssse3.phadd.w.128(<8 x i16> %a0, <8 x i16> %a0) + %r1 = call <8 x i16> @llvm.x86.ssse3.phadd.w.128(<8 x i16> %r0, <8 x i16> %a0) + ret <8 x i16> %r1 +} + declare <4 x float> @llvm.x86.sse3.hadd.ps(<4 x float>, <4 x float>) declare <4 x float> @llvm.x86.sse3.hsub.ps(<4 x float>, <4 x float>) declare <2 x double> @llvm.x86.sse3.hadd.pd(<2 x double>, <2 x double>) |