xref: /llvm-project/llvm/test/Analysis/LazyCallGraph/alias.ll (revision aff69e1ec203129e56282afda9b7f2d59621f5d0) 
1; RUN: opt -disable-output -passes=print-lcg %s 2>&1 | FileCheck %s
2;
3; Aliased function should be reachable in CGSCC.
4
5target triple = "x86_64-grtev4-linux-gnu"
6
7; CHECK:        Edges in function: foo
8; CHECK:        Edges in function: bar
9; CHECK:        Edges in function: baz
10
11; CHECK:       RefSCC with 1 call SCCs:
12; CHECK-NEXT:    SCC with 1 functions:
13; CHECK-NEXT:      foo
14; CHECK-EMPTY:
15; CHECK:       RefSCC with 1 call SCCs:
16; CHECK-NEXT:    SCC with 1 functions:
17; CHECK-NEXT:      bar
18
19; CHECK-NOT:       baz
20
21@alias1 = weak dso_local alias ptr (ptr), ptr @foo
22
23define dso_local ptr @foo(ptr %returned) {
24  ret ptr %returned
25}
26
27@alias2 = weak dso_local alias ptr (ptr), ptr @bar
28
29define internal ptr @bar(ptr %returned) {
30  ret ptr %returned
31}
32
33; Internal alias is not reachable.
34@alias3 = internal alias ptr (ptr), ptr @baz
35
36define internal ptr @baz(ptr %returned) {
37  ret ptr %returned
38}
39