xref: /llvm-project/llvm/test/Verifier/alias.ll (revision ff67e851826ccd535efce86db7c1a57e3f95d790)
1; RUN:  not llvm-as %s -o /dev/null 2>&1 | FileCheck %s
2
3; CHECK: : assembly parsed, but does not verify as correct!
4; CHECK-NOT: {{(^A| a)lias(es)? }}
5
6declare void @f()
7@fa = alias void (), ptr @f
8; CHECK: Alias must point to a definition
9; CHECK-NEXT: @fa
10
11@g = external global i32
12@ga = alias i32, ptr @g
13; CHECK: Alias must point to a definition
14; CHECK-NEXT: @ga
15
16define available_externally void @f2() {
17  ret void
18}
19@fa2 = alias void(), ptr @f2
20; CHECK: Alias must point to a definition
21; CHECK-NEXT: @fa2
22
23@test2_a = alias i32, ptr @test2_b
24@test2_b = alias i32, ptr @test2_a
25; CHECK:      Aliases cannot form a cycle
26; CHECK-NEXT: ptr @test2_a
27; CHECK-NEXT: Aliases cannot form a cycle
28; CHECK-NEXT: ptr @test2_b
29
30
31@test3_a = global i32 42
32@test3_b = weak alias i32, ptr @test3_a
33@test3_c = alias i32, ptr @test3_b
34; CHECK: Alias cannot point to an interposable alias
35; CHECK-NEXT: ptr @test3_c
36
37@test4_a = available_externally global i32 42
38@test4_b = available_externally alias i32, ptr @test4_a
39@test4_c = available_externally alias void(), ptr @f2
40@test4_d = available_externally alias i32, ptr @test4_b
41
42@test4_e = available_externally alias i32, ptr @test3_a
43@test4_f = available_externally alias i32, inttoptr (i64 sub (i64 ptrtoint (ptr @test4_a to i64), i64 ptrtoint (ptr @test4_a to i64)) to ptr)
44; CHECK:      available_externally alias must point to available_externally global value
45; CHECK-NEXT: ptr @test4_e
46; CHECK:      available_externally alias must point to available_externally global value
47; CHECK-NEXT: ptr @test4_f
48