xref: /llvm-project/llvm/test/Transforms/SimpleLoopUnswitch/pr62058.ll (revision 3b73892b439e69f4c490a5d932f14808885b5241)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
2; RUN: opt < %s -simple-loop-unswitch-inject-invariant-conditions=true -passes='loop(simple-loop-unswitch<nontrivial>)' -S | FileCheck %s
3
4@global = external dso_local local_unnamed_addr global i64, align 8
5
6define dso_local void @test() local_unnamed_addr #0 {
7; CHECK-LABEL: define dso_local void @test() local_unnamed_addr {
8; CHECK-NEXT:  bb:
9; CHECK-NEXT:    br label [[BB1:%.*]]
10; CHECK:       bb1:
11; CHECK-NEXT:    [[CALL:%.*]] = tail call noundef ptr @widget()
12; CHECK-NEXT:    [[ICMP:%.*]] = icmp slt ptr [[CALL]], null
13; CHECK-NEXT:    br i1 [[ICMP]], label [[BB2:%.*]], label [[BB1]]
14; CHECK:       bb2:
15; CHECK-NEXT:    ret void
16;
17bb:
18  br label %bb1
19
20bb1:                                              ; preds = %bb1, %bb
21  %call = tail call noundef ptr @widget()
22  %icmp = icmp slt ptr %call, null
23  br i1 %icmp, label %bb2, label %bb1
24
25bb2:                                              ; preds = %bb1
26  ret void
27}
28
29declare ptr @widget() local_unnamed_addr #0
30