xref: /llvm-project/llvm/test/Transforms/SCCP/return-constants.ll (revision 72121a20cda4dc91d0ef5548f93046e71c5ec6f6)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
3
4%0 = type { i32, i32 }
5
6define internal %0 @foo(i1 %Q) {
7; CHECK-LABEL: @foo(
8; CHECK-NEXT:    br i1 [[Q:%.*]], label [[T:%.*]], label [[F:%.*]]
9; CHECK:       T:
10; CHECK-NEXT:    ret [[TMP0:%.*]] { i32 21, i32 22 }
11; CHECK:       F:
12; CHECK-NEXT:    ret [[TMP0]] { i32 21, i32 23 }
13;
14  br i1 %Q, label %T, label %F
15
16T:                                                ; preds = %0
17  %mrv = insertvalue %0 undef, i32 21, 0
18  %mrv1 = insertvalue %0 %mrv, i32 22, 1
19  ret %0 %mrv1
20
21F:                                                ; preds = %0
22  %mrv2 = insertvalue %0 undef, i32 21, 0
23  %mrv3 = insertvalue %0 %mrv2, i32 23, 1
24  ret %0 %mrv3
25}
26
27define internal %0 @bar(i1 %Q) {
28; CHECK-LABEL: @bar(
29; CHECK-NEXT:    br i1 [[Q:%.*]], label [[T:%.*]], label [[F:%.*]]
30; CHECK:       T:
31; CHECK-NEXT:    ret [[TMP0:%.*]] { i32 21, i32 22 }
32; CHECK:       F:
33; CHECK-NEXT:    ret [[TMP0]] { i32 21, i32 23 }
34;
35  %A = insertvalue %0 undef, i32 21, 0
36  br i1 %Q, label %T, label %F
37
38T:                                                ; preds = %0
39  %B = insertvalue %0 %A, i32 22, 1
40  ret %0 %B
41
42F:                                                ; preds = %0
43  %C = insertvalue %0 %A, i32 23, 1
44  ret %0 %C
45}
46
47define %0 @caller(i1 %Q) {
48; CHECK-LABEL: @caller(
49; CHECK-NEXT:    [[X:%.*]] = call [[TMP0:%.*]] @foo(i1 [[Q:%.*]])
50; CHECK-NEXT:    [[B:%.*]] = extractvalue [[TMP0]] [[X]], 1
51; CHECK-NEXT:    [[Y:%.*]] = call [[TMP0]] @bar(i1 [[Q]])
52; CHECK-NEXT:    [[D:%.*]] = extractvalue [[TMP0]] [[Y]], 1
53; CHECK-NEXT:    [[N:%.*]] = add nuw nsw i32 [[B]], [[D]]
54; CHECK-NEXT:    ret [[TMP0]] [[X]]
55;
56  %X = call %0 @foo(i1 %Q)
57  %A = extractvalue %0 %X, 0
58  %B = extractvalue %0 %X, 1
59  %Y = call %0 @bar(i1 %Q)
60  %C = extractvalue %0 %Y, 0
61  %D = extractvalue %0 %Y, 1
62  %M = add i32 %A, %C
63  %N = add i32 %B, %D
64  ret %0 %X
65}
66