[llvm] [VectorCombine] Fix invalid shuffle cost argument of foldShuffleOfSelects (PR #130281)

[via llvm-commits]

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@@ -12,10 +12,20 @@
 ;
 
 define <4 x double> @x86_pblendvb_v4f64_v2f64(<4 x double> %a, <4 x double> %b, <4 x double> %c, <4 x double> %d) {
-; CHECK-LABEL: @x86_pblendvb_v4f64_v2f64(
-; CHECK-NEXT:    [[CMP:%.*]] = fcmp olt <4 x double> [[C:%.*]], [[D:%.*]]
-; CHECK-NEXT:    [[DOTV:%.*]] = select <4 x i1> [[CMP]], <4 x double> [[B:%.*]], <4 x double> [[A:%.*]]
-; CHECK-NEXT:    ret <4 x double> [[DOTV]]
+; SSE-LABEL: @x86_pblendvb_v4f64_v2f64(
+; SSE-NEXT:    [[TMP1:%.*]] = fcmp olt <4 x double> [[C:%.*]], [[D:%.*]]
+; SSE-NEXT:    [[DOTV:%.*]] = select <4 x i1> [[TMP1]], <4 x double> [[B:%.*]], <4 x double> [[A:%.*]]
+; SSE-NEXT:    ret <4 x double> [[DOTV]]
+;
+; AVX2-LABEL: @x86_pblendvb_v4f64_v2f64(
+; AVX2-NEXT:    [[TMP1:%.*]] = fcmp olt <4 x double> [[C:%.*]], [[D:%.*]]
+; AVX2-NEXT:    [[DOTV:%.*]] = select <4 x i1> [[TMP1]], <4 x double> [[B:%.*]], <4 x double> [[A:%.*]]
+; AVX2-NEXT:    ret <4 x double> [[DOTV]]
+;
+; AVX512-LABEL: @x86_pblendvb_v4f64_v2f64(
+; AVX512-NEXT:    [[CMP:%.*]] = fcmp olt <4 x double> [[C:%.*]], [[D:%.*]]
+; AVX512-NEXT:    [[DOTV:%.*]] = select <4 x i1> [[CMP]], <4 x double> [[B:%.*]], <4 x double> [[A:%.*]]
+; AVX512-NEXT:    ret <4 x double> [[DOTV]]
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ParkHanbum wrote:

I added a check prefix because the results of some tests are different between v2, v3, and v4. Is this okay?


https://github.com/llvm/llvm-project/pull/130281