Merge commit '75106413d080' from llvm.org/main into next

Author: git apple-llvm automerger

llvm/test/Transforms/SLPVectorizer/X86/extractelement-multiple-uses.ll

@@ -0,0 +1,32 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -slp-vectorizer -S -mtriple=x86_64-unknown-linux -march=core-avx2 -pass-remarks-output=%t | FileCheck %s
+; RUN: FileCheck %s --input-file=%t --check-prefix=YAML
+
+; YAML: --- !Missed
+; YAML: Pass:            slp-vectorizer
+; YAML: Name:            NotBeneficial
+; YAML: Function:        multi_uses
+; YAML: Args:
+; YAML:  - String:          'List vectorization was possible but not beneficial with cost '
+; YAML:  - Cost:            '0'
+; YAML:  - String:          ' >= '
+; YAML:  - Treshold:        '0'
+
+define float @multi_uses(<2 x float> %x, <2 x float> %y) {
+; CHECK-LABEL: @multi_uses(
+; CHECK-NEXT:    [[X0:%.*]] = extractelement <2 x float> [[X:%.*]], i32 0
+; CHECK-NEXT:    [[X1:%.*]] = extractelement <2 x float> [[X]], i32 1
+; CHECK-NEXT:    [[Y1:%.*]] = extractelement <2 x float> [[Y:%.*]], i32 1
+; CHECK-NEXT:    [[X0X0:%.*]] = fmul float [[X0]], [[Y1]]
+; CHECK-NEXT:    [[X1X1:%.*]] = fmul float [[X1]], [[Y1]]
+; CHECK-NEXT:    [[ADD:%.*]] = fadd float [[X0X0]], [[X1X1]]
+; CHECK-NEXT:    ret float [[ADD]]
+;
+  %x0 = extractelement <2 x float> %x, i32 0
+  %x1 = extractelement <2 x float> %x, i32 1
+  %y1 = extractelement <2 x float> %y, i32 1
+  %x0x0 = fmul float %x0, %y1
+  %x1x1 = fmul float %x1, %y1
+  %add = fadd float %x0x0, %x1x1
+  ret float %add
+}