From 17118e5be7a652e91001a47e23c658fc261ab09b Mon Sep 17 00:00:00 2001 From: Sanjay Patel Date: Wed, 25 Sep 2019 14:57:45 +0000 Subject: [PATCH] [x86] add test for multi-use scalarization of vector binop; NFC git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@372883 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/scalarize-fp.ll | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/test/CodeGen/X86/scalarize-fp.ll b/test/CodeGen/X86/scalarize-fp.ll index 650b948d3ab..5c72d4ba3c0 100644 --- a/test/CodeGen/X86/scalarize-fp.ll +++ b/test/CodeGen/X86/scalarize-fp.ll @@ -773,3 +773,29 @@ define <8 x float> @splat0_fdiv_const_op0_v8f32(<8 x float> %vx) { %r = shufflevector <8 x float> %b, <8 x float> undef, <8 x i32> zeroinitializer ret <8 x float> %r } + +define <4 x float> @multi_use_binop(<4 x float> %x, <4 x float> %y) { +; SSE-LABEL: multi_use_binop: +; SSE: # %bb.0: +; SSE-NEXT: movaps %xmm0, %xmm2 +; SSE-NEXT: mulps %xmm1, %xmm2 +; SSE-NEXT: mulss %xmm1, %xmm0 +; SSE-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0,0,0] +; SSE-NEXT: movlhps {{.*#+}} xmm1 = xmm1[0],xmm2[0] +; SSE-NEXT: addps %xmm1, %xmm0 +; SSE-NEXT: retq +; +; AVX-LABEL: multi_use_binop: +; AVX: # %bb.0: +; AVX-NEXT: vmulps %xmm1, %xmm0, %xmm2 +; AVX-NEXT: vmulss %xmm1, %xmm0, %xmm0 +; AVX-NEXT: vpermilps {{.*#+}} xmm0 = xmm0[0,0,0,0] +; AVX-NEXT: vmovddup {{.*#+}} xmm1 = xmm2[0,0] +; AVX-NEXT: vaddps %xmm1, %xmm0, %xmm0 +; AVX-NEXT: retq + %mul = fmul <4 x float> %x, %y + %mul0 = shufflevector <4 x float> %mul, <4 x float> undef, <4 x i32> + %mul1 = shufflevector <4 x float> %mul, <4 x float> undef, <4 x i32> + %r = fadd <4 x float> %mul0, %mul1 + ret <4 x float> %r +} -- 2.50.1