xref: /llvm-project/llvm/test/Transforms/SLPVectorizer/X86/reused-extractelements.ll (revision 15915c06d54151b78378a7cd029e1a8c09e764b3)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=slp-vectorizer -S -o - -mtriple=x86_64-unknown-linux -mcpu=bdver2 -pass-remarks-output=%t | FileCheck %s
3; RUN: FileCheck --input-file=%t --check-prefix=YAML %s
4
5; YAML: --- !Missed
6; YAML-NEXT: Pass:            slp-vectorizer
7; YAML-NEXT: Name:            NotPossible
8; YAML-NEXT: Function:        g
9; YAML-NEXT: Args:
10; YAML-NEXT:   - String:          'Cannot SLP vectorize list: only 2 elements of buildvector, trying reduction first.'
11
12define <2 x i32> @g(<2 x i32> %x, i32 %a, i32 %b) {
13; CHECK-LABEL: @g(
14; CHECK-NEXT:    [[X1:%.*]] = extractelement <2 x i32> [[X:%.*]], i32 1
15; CHECK-NEXT:    [[X1X1:%.*]] = mul i32 [[X1]], [[X1]]
16; CHECK-NEXT:    [[AB:%.*]] = mul i32 [[A:%.*]], [[B:%.*]]
17; CHECK-NEXT:    [[INS1:%.*]] = insertelement <2 x i32> poison, i32 [[X1X1]], i32 0
18; CHECK-NEXT:    [[INS2:%.*]] = insertelement <2 x i32> [[INS1]], i32 [[AB]], i32 1
19; CHECK-NEXT:    ret <2 x i32> [[INS2]]
20;
21  %x1 = extractelement <2 x i32> %x, i32 1
22  %x1x1 = mul i32 %x1, %x1
23  %ab = mul i32 %a, %b
24  %ins1 = insertelement <2 x i32> poison, i32 %x1x1, i32 0
25  %ins2 = insertelement <2 x i32> %ins1, i32 %ab, i32 1
26  ret <2 x i32> %ins2
27}
28
29