xref: /llvm-project/llvm/test/Transforms/Sink/single-succ.ll (revision 6b852ffa9973015fb5deb6d859d980692387dcc7)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S < %s -passes=sink | FileCheck %s
3
4define i32 @single_succ(i1 %b, ptr %a) {
5; CHECK-LABEL: @single_succ(
6; CHECK-NEXT:  entry:
7; CHECK-NEXT:    br label [[IF:%.*]]
8; CHECK:       if:
9; CHECK-NEXT:    br i1 [[B:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
10; CHECK:       then:
11; CHECK-NEXT:    ret i32 42
12; CHECK:       else:
13; CHECK-NEXT:    [[L:%.*]] = load i32, ptr [[A:%.*]], align 4
14; CHECK-NEXT:    ret i32 [[L]]
15;
16entry:
17  %l = load i32, ptr %a, align 4
18  br label %if
19if:
20  br i1 %b, label %then, label %else
21then:
22  ret i32 42
23else:
24  ret i32 %l
25}
26