xref: /aosp_15_r20/external/llvm/test/Transforms/GlobalOpt/preserve-comdats.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -globalopt -S < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker$comdat_global = comdat any
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker@comdat_global = weak_odr global i8 0, comdat($comdat_global)
6*9880d681SAndroid Build Coastguard Worker@simple_global = internal global i8 0
7*9880d681SAndroid Build Coastguard Worker; CHECK: @comdat_global = weak_odr global i8 0, comdat{{$}}
8*9880d681SAndroid Build Coastguard Worker; CHECK: @simple_global = internal global i8 42
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Worker@llvm.global_ctors = appending global [2 x { i32, void ()*, i8* }] [
11*9880d681SAndroid Build Coastguard Worker    { i32, void ()*, i8* } { i32 65535, void ()* @init_comdat_global, i8* @comdat_global },
12*9880d681SAndroid Build Coastguard Worker    { i32, void ()*, i8* } { i32 65535, void ()* @init_simple_global, i8* null }
13*9880d681SAndroid Build Coastguard Worker]
14*9880d681SAndroid Build Coastguard Worker; CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }]
15*9880d681SAndroid Build Coastguard Worker; CHECK: [{ i32, void ()*, i8* } { i32 65535, void ()* @init_comdat_global, i8* @comdat_global }]
16*9880d681SAndroid Build Coastguard Worker
17*9880d681SAndroid Build Coastguard Workerdefine void @init_comdat_global() {
18*9880d681SAndroid Build Coastguard Worker  store i8 42, i8* @comdat_global
19*9880d681SAndroid Build Coastguard Worker  ret void
20*9880d681SAndroid Build Coastguard Worker}
21*9880d681SAndroid Build Coastguard Worker; CHECK: define void @init_comdat_global()
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workerdefine internal void @init_simple_global() comdat($comdat_global) {
24*9880d681SAndroid Build Coastguard Worker  store i8 42, i8* @simple_global
25*9880d681SAndroid Build Coastguard Worker  ret void
26*9880d681SAndroid Build Coastguard Worker}
27*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: @init_simple_global()
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Workerdefine i8* @use_simple() {
30*9880d681SAndroid Build Coastguard Worker  ret i8* @simple_global
31*9880d681SAndroid Build Coastguard Worker}
32*9880d681SAndroid Build Coastguard Worker; CHECK: define i8* @use_simple()
33*9880d681SAndroid Build Coastguard Worker
34*9880d681SAndroid Build Coastguard Workerdefine i8* @use_comdat() {
35*9880d681SAndroid Build Coastguard Worker  ret i8* @comdat_global
36*9880d681SAndroid Build Coastguard Worker}
37*9880d681SAndroid Build Coastguard Worker; CHECK: define i8* @use_comdat()
38