xref: /llvm-project/llvm/test/Transforms/GlobalOpt/sra-many-stores-once.ll (revision 2d69827c5c754f0eca98e497ecf0e52ed54b4fd3) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
2; RUN: opt -passes=globalopt -S %s | FileCheck %s
3
4target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
5
6%struct.20ptr = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
7@global.20ptr = internal global %struct.20ptr zeroinitializer
8
9declare i32 @fn0()
10declare i32 @fn1()
11declare i32 @fn2()
12declare i32 @fn3()
13
14;.
15; CHECK: @[[GLOBAL_20PTR:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global [[STRUCT_20PTR:%.*]] zeroinitializer
16;.
17
18; FIXME: The loads from @global.20ptr cannot load null, as the loaded value are
19; used as called operands. The loads and stores can be removed.
20define void @test_stored_once_call_with_nullptr_ub() {
21; CHECK-LABEL: @test_stored_once_call_with_nullptr_ub(
22; CHECK-NEXT:  entry:
23; CHECK-NEXT:    store ptr @fn0, ptr @global.20ptr, align 8
24; CHECK-NEXT:    store ptr @fn1, ptr @global.20ptr, align 8
25; CHECK-NEXT:    store ptr @fn2, ptr getelementptr inbounds ([[STRUCT_20PTR:%.*]], ptr @global.20ptr, i64 0, i32 1), align 8
26; CHECK-NEXT:    store ptr @fn3, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 2), align 8
27; CHECK-NEXT:    store ptr @fn0, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 3), align 8
28; CHECK-NEXT:    store ptr @fn1, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 4), align 8
29; CHECK-NEXT:    store ptr @fn2, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 5), align 8
30; CHECK-NEXT:    store ptr @fn3, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 6), align 8
31; CHECK-NEXT:    store ptr @fn0, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 7), align 8
32; CHECK-NEXT:    store ptr @fn1, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 8), align 8
33; CHECK-NEXT:    store ptr @fn2, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 9), align 8
34; CHECK-NEXT:    store ptr @fn3, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 10), align 8
35; CHECK-NEXT:    store ptr @fn0, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 11), align 8
36; CHECK-NEXT:    store ptr @fn1, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 12), align 8
37; CHECK-NEXT:    store ptr @fn2, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 13), align 8
38; CHECK-NEXT:    store ptr @fn3, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 14), align 8
39; CHECK-NEXT:    store ptr @fn0, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 15), align 8
40; CHECK-NEXT:    store ptr @fn1, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 16), align 8
41; CHECK-NEXT:    [[L0:%.*]] = load ptr, ptr @global.20ptr, align 8
42; CHECK-NEXT:    call void [[L0]]()
43; CHECK-NEXT:    [[L1:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 1), align 8
44; CHECK-NEXT:    call void [[L1]]()
45; CHECK-NEXT:    [[L2:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 2), align 8
46; CHECK-NEXT:    call void [[L2]]()
47; CHECK-NEXT:    [[L3:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 3), align 8
48; CHECK-NEXT:    call void [[L3]]()
49; CHECK-NEXT:    [[L4:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 4), align 8
50; CHECK-NEXT:    call void [[L4]]()
51; CHECK-NEXT:    [[L5:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 5), align 8
52; CHECK-NEXT:    call void [[L5]]()
53; CHECK-NEXT:    [[L6:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 6), align 8
54; CHECK-NEXT:    call void [[L6]]()
55; CHECK-NEXT:    [[L7:%.*]] = load ptr, ptr @global.20ptr, align 8
56; CHECK-NEXT:    call void [[L7]]()
57; CHECK-NEXT:    [[L8:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 7), align 8
58; CHECK-NEXT:    call void [[L8]]()
59; CHECK-NEXT:    [[L9:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 8), align 8
60; CHECK-NEXT:    call void [[L9]]()
61; CHECK-NEXT:    [[L10:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 9), align 8
62; CHECK-NEXT:    call void [[L10]]()
63; CHECK-NEXT:    [[L11:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 10), align 8
64; CHECK-NEXT:    call void [[L11]]()
65; CHECK-NEXT:    [[L12:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 11), align 8
66; CHECK-NEXT:    call void [[L12]]()
67; CHECK-NEXT:    [[L13:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 12), align 8
68; CHECK-NEXT:    call void [[L13]]()
69; CHECK-NEXT:    [[L14:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 13), align 8
70; CHECK-NEXT:    call void [[L14]]()
71; CHECK-NEXT:    [[L15:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 14), align 8
72; CHECK-NEXT:    call void [[L15]]()
73; CHECK-NEXT:    [[L16:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 15), align 8
74; CHECK-NEXT:    call void [[L16]]()
75; CHECK-NEXT:    [[L17:%.*]] = load ptr, ptr getelementptr inbounds ([[STRUCT_20PTR]], ptr @global.20ptr, i64 0, i32 16), align 8
76; CHECK-NEXT:    call void [[L17]]()
77; CHECK-NEXT:    ret void
78;
79entry:
80  store ptr @fn0, ptr @global.20ptr, align 8
81  store ptr @fn1, ptr @global.20ptr, align 8
82  store ptr @fn2, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 1), align 8
83  store ptr @fn3, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 2), align 8
84  store ptr @fn0, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 3), align 8
85  store ptr @fn1, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 4), align 8
86  store ptr @fn2, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 5), align 8
87  store ptr @fn3, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 6), align 8
88  store ptr @fn0, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 7), align 8
89  store ptr @fn1, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 8), align 8
90  store ptr @fn2, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 9), align 8
91  store ptr @fn3, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 10), align 8
92  store ptr @fn0, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 11), align 8
93  store ptr @fn1, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 12), align 8
94  store ptr @fn2, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 13), align 8
95  store ptr @fn3, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 14), align 8
96  store ptr @fn0, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 15), align 8
97  store ptr @fn1, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 16), align 8
98
99  %l0 = load ptr, ptr @global.20ptr, align 8
100  call void %l0()
101  %l1 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 1), align 8
102  call void %l1()
103  %l2 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 2), align 8
104  call void %l2()
105  %l3 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 3), align 8
106  call void %l3()
107  %l4 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 4), align 8
108  call void %l4()
109  %l5 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 5), align 8
110  call void %l5()
111  %l6 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 6), align 8
112  call void %l6()
113  %l7 = load ptr, ptr @global.20ptr, align 8
114  call void %l7()
115  %l8 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 7), align 8
116  call void %l8()
117  %l9 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 8), align 8
118  call void %l9()
119  %l10 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 9), align 8
120  call void %l10()
121  %l11 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 10), align 8
122  call void %l11()
123  %l12 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 11), align 8
124  call void %l12()
125  %l13 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 12), align 8
126  call void %l13()
127  %l14 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 13), align 8
128  call void %l14()
129  %l15 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 14), align 8
130  call void %l15()
131  %l16 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 15), align 8
132  call void %l16()
133  %l17 = load ptr, ptr getelementptr inbounds (%struct.20ptr, ptr @global.20ptr, i64 0, i32 16), align 8
134  call void %l17()
135  ret void
136}
137