xref: /llvm-project/llvm/test/Transforms/SLPVectorizer/root-trunc-extract-reuse.ll (revision f74879cf0cf3e6d1f4c510627a7343ab09485e98)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: %if x86-registered-target %{ opt -passes=slp-vectorizer -S -slp-threshold=-100 -mtriple=x86_64 < %s | FileCheck %s %}
3; RUN: %if aarch64-registered-target %{ opt -passes=slp-vectorizer -S -slp-threshold=-100 -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s %}
4
5define i1 @test() {
6; CHECK-LABEL: @test(
7; CHECK-NEXT:  entry:
8; CHECK-NEXT:    br i1 false, label [[THEN:%.*]], label [[ELSE:%.*]]
9; CHECK:       then:
10; CHECK-NEXT:    br label [[ELSE]]
11; CHECK:       else:
12; CHECK-NEXT:    [[TMP0:%.*]] = phi <2 x i32> [ zeroinitializer, [[THEN]] ], [ zeroinitializer, [[ENTRY:%.*]] ]
13; CHECK-NEXT:    [[TMP1:%.*]] = extractelement <2 x i32> [[TMP0]], i32 1
14; CHECK-NEXT:    [[BF_CAST162:%.*]] = and i32 [[TMP1]], 0
15; CHECK-NEXT:    [[TMP2:%.*]] = shufflevector <2 x i32> zeroinitializer, <2 x i32> [[TMP0]], <2 x i32> <i32 2, i32 1>
16; CHECK-NEXT:    [[T13:%.*]] = and <2 x i32> [[TMP2]], zeroinitializer
17; CHECK-NEXT:    br label [[ELSE1:%.*]]
18; CHECK:       else1:
19; CHECK-NEXT:    [[TMP3:%.*]] = shufflevector <2 x i32> [[T13]], <2 x i32> poison, <2 x i32> <i32 poison, i32 0>
20; CHECK-NEXT:    [[TMP4:%.*]] = insertelement <2 x i32> [[TMP3]], i32 [[BF_CAST162]], i32 0
21; CHECK-NEXT:    [[TMP5:%.*]] = icmp ugt <2 x i32> [[TMP4]], zeroinitializer
22; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <2 x i1> [[TMP5]], i32 1
23; CHECK-NEXT:    ret i1 [[TMP6]]
24;
25entry:
26  br i1 false, label %then, label %else
27
28then:
29  br label %else
30
31else:
32  %bf.load.off43 = phi i32 [ 0, %then ], [ 0, %entry ]
33  %bf.load.off44 = phi i32 [ 0, %then ], [ 0, %entry ]
34  %bf.cast162 = and i32 %bf.load.off43, 0
35  %t12 = insertelement <2 x i32> zeroinitializer, i32 %bf.load.off44, i64 0
36  %t13 = and <2 x i32> %t12, zeroinitializer
37  br label %else1
38
39else1:
40  %cmp40 = icmp ugt i32 %bf.cast162, 0
41  %t20 = extractelement <2 x i32> %t13, i64 0
42  %cmp50 = icmp ugt i32 %t20, 0
43  ret i1 %cmp50
44}
45