xref: /llvm-project/llvm/test/MC/WebAssembly/external-func-address.ll (revision 270f63b84a612dfa438df3d59903bb76fa0c7740)
1; RUN: llc -filetype=obj %s -o - | obj2yaml | FileCheck %s
2
3target triple = "wasm32-unknown-unknown"
4
5; Verify that addresses of external functions generate correctly typed
6; imports and relocations of type R_TABLE_INDEX_I32.
7
8declare void @f0(i32) #0
9@ptr_to_f0 = hidden global ptr @f0, align 4
10
11attributes #0 = { "wasm-import-module"="somewhere" "wasm-import-name"="something" }
12
13declare void @f1(i32) #1
14@ptr_to_f1 = hidden global ptr @f1, align 4
15
16; Check that varargs functions have correctly typed imports
17declare i32 @varargs(i32, i32, ...)
18define void @call(i32) {
19 %a = call i32 (i32, i32, ...) @varargs(i32 0, i32 0)
20 ret void
21}
22
23; CHECK:      --- !WASM
24; CHECK-NEXT: FileHeader:
25; CHECK-NEXT:   Version:         0x1
26; CHECK-NEXT: Sections:
27; CHECK-NEXT:   - Type:            TYPE
28; CHECK-NEXT:     Signatures:
29; CHECK-NEXT:       - Index:           0
30; CHECK-NEXT:         ParamTypes:
31; CHECK-NEXT:           - I32
32; CHECK-NEXT:         ReturnTypes:     []
33; CHECK-NEXT:       - Index:           1
34; CHECK-NEXT:         ParamTypes:
35; CHECK-NEXT:           - I32
36; CHECK-NEXT:           - I32
37; CHECK-NEXT:           - I32
38; CHECK-NEXT:         ReturnTypes:
39; CHECK-NEXT:           - I32
40; CHECK:        - Type:            IMPORT
41; CHECK-NEXT:     Imports:
42; CHECK:            - Module:          env
43; CHECK-NEXT:         Field:           __linear_memory
44; CHECK:            - Module:          env
45; CHECK-NEXT:         Field:           varargs
46; CHECK-NEXT:         Kind:            FUNCTION
47; CHECK-NEXT:         SigIndex:        1
48; CHECK:            - Module:          somewhere
49; CHECK-NEXT:         Field:           something
50; CHECK:            - Module:          env
51; CHECK-NEXT:         Field:           f1
52; CHECK-NEXT:         Kind:            FUNCTION
53; CHECK-NEXT:         SigIndex:        0
54; CHECK:            - Module:          env
55; CHECK-NEXT:         Field:           __indirect_function_table
56; CHECK:        - Type:            ELEM
57; CHECK-NEXT:     Segments:
58; CHECK-NEXT:       - Offset:
59; CHECK-NEXT:           Opcode:          I32_CONST
60; CHECK-NEXT:           Value:           1
61; CHECK-NEXT:         Functions:       [ 1, 2 ]
62; CHECK:        - Type:            DATA{{$}}
63; CHECK-NEXT:     Relocations:
64; CHECK-NEXT:       - Type:            R_WASM_TABLE_INDEX_I32
65; CHECK-NEXT:         Index:           3
66; CHECK-NEXT:         Offset:          0x6
67