xref: /llvm-project/llvm/test/Transforms/IROutliner/region-end-of-module.ll (revision f4b925ee7078f058602fd323e25f45f1ae91ca34)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
2; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
3
4; This test checks that we do not fail when there is a similarity group with
5; an ending instruction that is also the end of the module.
6
7@a = global ptr null
8
9define void @foo() {
10entry:
11  br label %for.cond1
12
13for.cond1:
14  br label %for.body
15
16for.body:
17  %inc = add nsw i32 2, 1
18  br label %for.cond1
19
20for.end:
21  %inc3 = add nsw i32 2, 1
22  br label %for.cond1
23}
24
25; These are for testing if return instructions or unreachable instructions are
26; matched for similarity.
27define void @foo1() {
28entry:
29  br label %for.cond1
30
31for.cond1:
32  br label %for.body
33
34for.body:
35  %inc = add nsw i32 2, 1
36  ret void
37
38for.end:
39  %inc3 = add nsw i32 2, 1
40  ret void
41}
42
43define void @foo2() {
44entry:
45  br label %for.cond1
46
47for.cond1:
48  br label %for.body
49
50for.body:
51  %inc = add nsw i32 2, 1
52  unreachable
53
54for.end:
55  %inc3 = add nsw i32 2, 1
56  unreachable
57}
58
59; CHECK-LABEL: @foo(
60; CHECK-NEXT:  entry:
61; CHECK-NEXT:    br label [[FOR_COND1:%.*]]
62; CHECK:       for.cond1:
63; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
64; CHECK:       for.body:
65; CHECK-NEXT:    call void @outlined_ir_func_1()
66; CHECK-NEXT:    br label [[FOR_COND1]]
67; CHECK:       for.end:
68; CHECK-NEXT:    call void @outlined_ir_func_1()
69; CHECK-NEXT:    br label [[FOR_COND1]]
70;
71;
72; CHECK-LABEL: @foo1(
73; CHECK-NEXT:  entry:
74; CHECK-NEXT:    call void @outlined_ir_func_0()
75; CHECK-NEXT:    ret void
76; CHECK:       for.end:
77; CHECK-NEXT:    [[INC3:%.*]] = add nsw i32 2, 1
78; CHECK-NEXT:    ret void
79;
80;
81; CHECK-LABEL: @foo2(
82; CHECK-NEXT:  entry:
83; CHECK-NEXT:    call void @outlined_ir_func_0()
84; CHECK-NEXT:    unreachable
85; CHECK:       for.end:
86; CHECK-NEXT:    [[INC3:%.*]] = add nsw i32 2, 1
87; CHECK-NEXT:    unreachable
88;
89;
90; CHECK: define internal void @outlined_ir_func_0(
91; CHECK-NEXT:  newFuncRoot:
92; CHECK-NEXT:    br label [[ENTRY_TO_OUTLINE:%.*]]
93; CHECK:       entry_to_outline:
94; CHECK-NEXT:    br label [[FOR_COND1:%.*]]
95; CHECK:       for.cond1:
96; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
97; CHECK:       for.body:
98; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 2, 1
99; CHECK-NEXT:    br label [[ENTRY_AFTER_OUTLINE_EXITSTUB:%.*]]
100; CHECK:       entry_after_outline.exitStub:
101; CHECK-NEXT:    ret void
102;
103;
104; CHECK: define internal void @outlined_ir_func_1(
105; CHECK-NEXT:  newFuncRoot:
106; CHECK-NEXT:    br label [[FOR_BODY_TO_OUTLINE:%.*]]
107; CHECK:       for.body_to_outline:
108; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 2, 1
109; CHECK-NEXT:    br label [[FOR_COND1_EXITSTUB:%.*]]
110; CHECK:       for.cond1.exitStub:
111; CHECK-NEXT:    ret void
112;
113