[llvm] a1611b3 - [X86] Connect accidentally dead code in a avx512 fmadd intrinsic test case.

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2020-03-03T09:54:23-08:00
New Revision: a1611b373795793e45e4e4fa48fda7a5e81155df

URL: https://github.com/llvm/llvm-project/commit/a1611b373795793e45e4e4fa48fda7a5e81155df
DIFF: https://github.com/llvm/llvm-project/commit/a1611b373795793e45e4e4fa48fda7a5e81155df.diff

LOG: [X86] Connect accidentally dead code in a avx512 fmadd intrinsic test case.

Added: 
    

Modified: 
    llvm/test/CodeGen/X86/avx512-intrinsics.ll

Removed: 
    


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diff  --git a/llvm/test/CodeGen/X86/avx512-intrinsics.ll b/llvm/test/CodeGen/X86/avx512-intrinsics.ll
index fcc8a1508a63..a089e1ee99af 100644
--- a/llvm/test/CodeGen/X86/avx512-intrinsics.ll
+++ b/llvm/test/CodeGen/X86/avx512-intrinsics.ll
@@ -5783,14 +5783,20 @@ define <4 x float>@test_int_x86_avx512_maskz_vfmadd_ss(<4 x float> %x0, <4 x flo
 ; X64-LABEL: test_int_x86_avx512_maskz_vfmadd_ss:
 ; X64:       # %bb.0:
 ; X64-NEXT:    kmovw %edi, %k1
-; X64-NEXT:    vfmadd213ss {{.*#+}} xmm0 = (xmm1 * xmm0) + xmm2
+; X64-NEXT:    vmovaps %xmm0, %xmm3
+; X64-NEXT:    vfmadd213ss {{.*#+}} xmm3 = (xmm1 * xmm3) + xmm2
+; X64-NEXT:    vfmadd213ss {rz-sae}, %xmm2, %xmm1, %xmm0 {%k1} {z}
+; X64-NEXT:    vaddps %xmm0, %xmm3, %xmm0
 ; X64-NEXT:    retq
 ;
 ; X86-LABEL: test_int_x86_avx512_maskz_vfmadd_ss:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movb {{[0-9]+}}(%esp), %al
 ; X86-NEXT:    kmovw %eax, %k1
-; X86-NEXT:    vfmadd213ss {{.*#+}} xmm0 = (xmm1 * xmm0) + xmm2
+; X86-NEXT:    vmovaps %xmm0, %xmm3
+; X86-NEXT:    vfmadd213ss {{.*#+}} xmm3 = (xmm1 * xmm3) + xmm2
+; X86-NEXT:    vfmadd213ss {rz-sae}, %xmm2, %xmm1, %xmm0 {%k1} {z}
+; X86-NEXT:    vaddps %xmm0, %xmm3, %xmm0
 ; X86-NEXT:    retl
   %1 = extractelement <4 x float> %x0, i64 0
   %2 = extractelement <4 x float> %x1, i64 0
@@ -5809,7 +5815,7 @@ define <4 x float>@test_int_x86_avx512_maskz_vfmadd_ss(<4 x float> %x0, <4 x flo
   %15 = select i1 %14, float %12, float 0.000000e+00
   %16 = insertelement <4 x float> %x0, float %15, i64 0
   %res2 = fadd <4 x float> %8, %16
-  ret <4 x float> %8
+  ret <4 x float> %res2
 }
 
 define <2 x double>@test_int_x86_avx512_mask3_vfmadd_sd(<2 x double> %x0, <2 x double> %x1, <2 x double> %x2, i8 %x3,i32 %x4 ){