[llvm] 636b877 - [X86][SSE] Add PR48823 HSUB test case

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2021-01-22T10:05:22Z
New Revision: 636b87785c1de64134254b688d30ab1248b16ed2

URL: https://github.com/llvm/llvm-project/commit/636b87785c1de64134254b688d30ab1248b16ed2
DIFF: https://github.com/llvm/llvm-project/commit/636b87785c1de64134254b688d30ab1248b16ed2.diff

LOG: [X86][SSE] Add PR48823 HSUB test case

Added: 
    

Modified: 
    llvm/test/CodeGen/X86/haddsub-3.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/X86/haddsub-3.ll b/llvm/test/CodeGen/X86/haddsub-3.ll
index 05ab83f8604d..651ab4ef3935 100644
--- a/llvm/test/CodeGen/X86/haddsub-3.ll
+++ b/llvm/test/CodeGen/X86/haddsub-3.ll
@@ -156,3 +156,56 @@ define <4 x double> @PR41414(i64 %x, <4 x double> %y) {
   %t3 = fadd <4 x double> zeroinitializer, %t2
   ret <4 x double> %t3
 }
+
+define <4 x float> @PR48823(<4 x float> %0, <4 x float> %1) {
+; SSE2-LABEL: PR48823:
+; SSE2:       # %bb.0:
+; SSE2-NEXT:    movaps %xmm0, %xmm2
+; SSE2-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1],xmm1[2,3]
+; SSE2-NEXT:    shufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,2]
+; SSE2-NEXT:    subps %xmm2, %xmm0
+; SSE2-NEXT:    retq
+;
+; SSSE3-SLOW-LABEL: PR48823:
+; SSSE3-SLOW:       # %bb.0:
+; SSSE3-SLOW-NEXT:    movaps %xmm0, %xmm2
+; SSSE3-SLOW-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1],xmm1[2,3]
+; SSSE3-SLOW-NEXT:    shufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,2]
+; SSSE3-SLOW-NEXT:    subps %xmm2, %xmm0
+; SSSE3-SLOW-NEXT:    retq
+;
+; SSSE3-FAST-LABEL: PR48823:
+; SSSE3-FAST:       # %bb.0:
+; SSSE3-FAST-NEXT:    movaps %xmm0, %xmm2
+; SSSE3-FAST-NEXT:    shufps {{.*#+}} xmm2 = xmm2[1,1],xmm1[2,3]
+; SSSE3-FAST-NEXT:    shufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,2]
+; SSSE3-FAST-NEXT:    subps %xmm2, %xmm0
+; SSSE3-FAST-NEXT:    retq
+;
+; AVX1-SLOW-LABEL: PR48823:
+; AVX1-SLOW:       # %bb.0:
+; AVX1-SLOW-NEXT:    vshufps {{.*#+}} xmm2 = xmm0[1,1],xmm1[2,3]
+; AVX1-SLOW-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,2]
+; AVX1-SLOW-NEXT:    vsubps %xmm2, %xmm0, %xmm0
+; AVX1-SLOW-NEXT:    retq
+;
+; AVX1-FAST-LABEL: PR48823:
+; AVX1-FAST:       # %bb.0:
+; AVX1-FAST-NEXT:    vshufps {{.*#+}} xmm2 = xmm0[1,1],xmm1[2,3]
+; AVX1-FAST-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,2]
+; AVX1-FAST-NEXT:    vsubps %xmm2, %xmm0, %xmm0
+; AVX1-FAST-NEXT:    retq
+;
+; AVX2-LABEL: PR48823:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vshufps {{.*#+}} xmm2 = xmm0[1,1],xmm1[2,3]
+; AVX2-NEXT:    vshufps {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,2]
+; AVX2-NEXT:    vsubps %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    retq
+  %3 = shufflevector <4 x float> %0, <4 x float> poison, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
+  %4 = fsub <4 x float> %0, %3
+  %5 = shufflevector <4 x float> %1, <4 x float> poison, <4 x i32> <i32 undef, i32 undef, i32 undef, i32 2>
+  %6 = fsub <4 x float> %5, %1
+  %7 = shufflevector <4 x float> %4, <4 x float> %6, <4 x i32> <i32 0, i32 undef, i32 undef, i32 7>
+  ret <4 x float> %7
+}