xref: /llvm-project/llvm/test/Transforms/IROutliner/region-end-of-module.ll (revision f4b925ee7078f058602fd323e25f45f1ae91ca34)
1bd4b1b5fSAndrew Litteken; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
29dd9575cSRoman Lebedev; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
3bd4b1b5fSAndrew Litteken
4bd4b1b5fSAndrew Litteken; This test checks that we do not fail when there is a similarity group with
5bd4b1b5fSAndrew Litteken; an ending instruction that is also the end of the module.
6bd4b1b5fSAndrew Litteken
7*f4b925eeSMatt Arsenault@a = global ptr null
8bd4b1b5fSAndrew Litteken
9bd4b1b5fSAndrew Littekendefine void @foo() {
10bd4b1b5fSAndrew Littekenentry:
11bd4b1b5fSAndrew Litteken  br label %for.cond1
12bd4b1b5fSAndrew Litteken
13bd4b1b5fSAndrew Littekenfor.cond1:
14bd4b1b5fSAndrew Litteken  br label %for.body
15bd4b1b5fSAndrew Litteken
16bd4b1b5fSAndrew Littekenfor.body:
17bd4b1b5fSAndrew Litteken  %inc = add nsw i32 2, 1
18bd4b1b5fSAndrew Litteken  br label %for.cond1
19bd4b1b5fSAndrew Litteken
20bd4b1b5fSAndrew Littekenfor.end:
21bd4b1b5fSAndrew Litteken  %inc3 = add nsw i32 2, 1
22bd4b1b5fSAndrew Litteken  br label %for.cond1
23bd4b1b5fSAndrew Litteken}
24bd4b1b5fSAndrew Litteken
25bd4b1b5fSAndrew Litteken; These are for testing if return instructions or unreachable instructions are
26bd4b1b5fSAndrew Litteken; matched for similarity.
27bd4b1b5fSAndrew Littekendefine void @foo1() {
28bd4b1b5fSAndrew Littekenentry:
29bd4b1b5fSAndrew Litteken  br label %for.cond1
30bd4b1b5fSAndrew Litteken
31bd4b1b5fSAndrew Littekenfor.cond1:
32bd4b1b5fSAndrew Litteken  br label %for.body
33bd4b1b5fSAndrew Litteken
34bd4b1b5fSAndrew Littekenfor.body:
35bd4b1b5fSAndrew Litteken  %inc = add nsw i32 2, 1
36bd4b1b5fSAndrew Litteken  ret void
37bd4b1b5fSAndrew Litteken
38bd4b1b5fSAndrew Littekenfor.end:
39bd4b1b5fSAndrew Litteken  %inc3 = add nsw i32 2, 1
40bd4b1b5fSAndrew Litteken  ret void
41bd4b1b5fSAndrew Litteken}
42bd4b1b5fSAndrew Litteken
43bd4b1b5fSAndrew Littekendefine void @foo2() {
44bd4b1b5fSAndrew Littekenentry:
45bd4b1b5fSAndrew Litteken  br label %for.cond1
46bd4b1b5fSAndrew Litteken
47bd4b1b5fSAndrew Littekenfor.cond1:
48bd4b1b5fSAndrew Litteken  br label %for.body
49bd4b1b5fSAndrew Litteken
50bd4b1b5fSAndrew Littekenfor.body:
51bd4b1b5fSAndrew Litteken  %inc = add nsw i32 2, 1
52bd4b1b5fSAndrew Litteken  unreachable
53bd4b1b5fSAndrew Litteken
54bd4b1b5fSAndrew Littekenfor.end:
55bd4b1b5fSAndrew Litteken  %inc3 = add nsw i32 2, 1
56bd4b1b5fSAndrew Litteken  unreachable
57bd4b1b5fSAndrew Litteken}
5881d3ac0cSAndrew Litteken
5981d3ac0cSAndrew Litteken; CHECK-LABEL: @foo(
6081d3ac0cSAndrew Litteken; CHECK-NEXT:  entry:
6181d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_COND1:%.*]]
6281d3ac0cSAndrew Litteken; CHECK:       for.cond1:
6381d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
6481d3ac0cSAndrew Litteken; CHECK:       for.body:
6581d3ac0cSAndrew Litteken; CHECK-NEXT:    call void @outlined_ir_func_1()
6681d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_COND1]]
6781d3ac0cSAndrew Litteken; CHECK:       for.end:
6881d3ac0cSAndrew Litteken; CHECK-NEXT:    call void @outlined_ir_func_1()
6981d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_COND1]]
7081d3ac0cSAndrew Litteken;
7181d3ac0cSAndrew Litteken;
7281d3ac0cSAndrew Litteken; CHECK-LABEL: @foo1(
7381d3ac0cSAndrew Litteken; CHECK-NEXT:  entry:
7481d3ac0cSAndrew Litteken; CHECK-NEXT:    call void @outlined_ir_func_0()
7581d3ac0cSAndrew Litteken; CHECK-NEXT:    ret void
7681d3ac0cSAndrew Litteken; CHECK:       for.end:
7781d3ac0cSAndrew Litteken; CHECK-NEXT:    [[INC3:%.*]] = add nsw i32 2, 1
7881d3ac0cSAndrew Litteken; CHECK-NEXT:    ret void
7981d3ac0cSAndrew Litteken;
8081d3ac0cSAndrew Litteken;
8181d3ac0cSAndrew Litteken; CHECK-LABEL: @foo2(
8281d3ac0cSAndrew Litteken; CHECK-NEXT:  entry:
8381d3ac0cSAndrew Litteken; CHECK-NEXT:    call void @outlined_ir_func_0()
8481d3ac0cSAndrew Litteken; CHECK-NEXT:    unreachable
8581d3ac0cSAndrew Litteken; CHECK:       for.end:
8681d3ac0cSAndrew Litteken; CHECK-NEXT:    [[INC3:%.*]] = add nsw i32 2, 1
8781d3ac0cSAndrew Litteken; CHECK-NEXT:    unreachable
8881d3ac0cSAndrew Litteken;
8981d3ac0cSAndrew Litteken;
9081d3ac0cSAndrew Litteken; CHECK: define internal void @outlined_ir_func_0(
9181d3ac0cSAndrew Litteken; CHECK-NEXT:  newFuncRoot:
9281d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[ENTRY_TO_OUTLINE:%.*]]
9381d3ac0cSAndrew Litteken; CHECK:       entry_to_outline:
9481d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_COND1:%.*]]
9581d3ac0cSAndrew Litteken; CHECK:       for.cond1:
9681d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
9781d3ac0cSAndrew Litteken; CHECK:       for.body:
9881d3ac0cSAndrew Litteken; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 2, 1
9981d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[ENTRY_AFTER_OUTLINE_EXITSTUB:%.*]]
10081d3ac0cSAndrew Litteken; CHECK:       entry_after_outline.exitStub:
10181d3ac0cSAndrew Litteken; CHECK-NEXT:    ret void
10281d3ac0cSAndrew Litteken;
10381d3ac0cSAndrew Litteken;
10481d3ac0cSAndrew Litteken; CHECK: define internal void @outlined_ir_func_1(
10581d3ac0cSAndrew Litteken; CHECK-NEXT:  newFuncRoot:
10681d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_BODY_TO_OUTLINE:%.*]]
10781d3ac0cSAndrew Litteken; CHECK:       for.body_to_outline:
10881d3ac0cSAndrew Litteken; CHECK-NEXT:    [[INC:%.*]] = add nsw i32 2, 1
10981d3ac0cSAndrew Litteken; CHECK-NEXT:    br label [[FOR_COND1_EXITSTUB:%.*]]
11081d3ac0cSAndrew Litteken; CHECK:       for.cond1.exitStub:
11181d3ac0cSAndrew Litteken; CHECK-NEXT:    ret void
11281d3ac0cSAndrew Litteken;
113