xref: /llvm-project/llvm/test/Transforms/GlobalOpt/shrink-global-to-bool-opaque-ptrs.ll (revision edb2fc6dab2cf04779959829434e9e8572d48a26)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -passes=globalopt < %s | FileCheck %s
3
4; Make sure we don't try to convert to select if the load/stores don't match
5; the global type.
6
7@g1 = internal global i64 zeroinitializer
8@g2 = internal global i64 zeroinitializer
9@g3 = internal global i64 zeroinitializer
10
11define void @store1() {
12; CHECK-LABEL: @store1(
13; CHECK-NEXT:    store i32 2, ptr @g1, align 4
14; CHECK-NEXT:    ret void
15;
16  store i32 2, ptr @g1
17  ret void
18}
19
20define i32 @load1() {
21; CHECK-LABEL: @load1(
22; CHECK-NEXT:    [[V:%.*]] = load i32, ptr @g1, align 4
23; CHECK-NEXT:    ret i32 [[V]]
24;
25  %v = load i32, ptr @g1
26  ret i32 %v
27}
28
29define void @store2() {
30; CHECK-LABEL: @store2(
31; CHECK-NEXT:    store i64 2, ptr @g2, align 4
32; CHECK-NEXT:    ret void
33;
34  store i64 2, ptr @g2
35  ret void
36}
37
38define i32 @load2() {
39; CHECK-LABEL: @load2(
40; CHECK-NEXT:    [[V:%.*]] = load i32, ptr @g2, align 4
41; CHECK-NEXT:    ret i32 [[V]]
42;
43  %v = load i32, ptr @g2
44  ret i32 %v
45}
46
47define void @store3() {
48; CHECK-LABEL: @store3(
49; CHECK-NEXT:    store i1 true, ptr @g3, align 1
50; CHECK-NEXT:    ret void
51;
52  store i64 2, ptr @g3
53  ret void
54}
55
56define i64 @load3() {
57; CHECK-LABEL: @load3(
58; CHECK-NEXT:    [[V_B:%.*]] = load i1, ptr @g3, align 1
59; CHECK-NEXT:    [[V:%.*]] = select i1 [[V_B]], i64 2, i64 0
60; CHECK-NEXT:    ret i64 [[V]]
61;
62  %v = load i64, ptr @g3
63  ret i64 %v
64}
65