1; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
2; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
3; Source:
4;   struct t1 {
5;     int a;
6;   };
7;   struct t2 {
8;     const struct t1 * const a;
9;   };
10;   int foo(struct t2 *arg) { return 0; }
11;   int bar(const struct t1 * const arg) { return 0; }
12; Compilation flags:
13;   clang -target bpf -O2 -g -S -emit-llvm t.c
14
15%struct.t2 = type { %struct.t1* }
16%struct.t1 = type { i32 }
17
18; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
19define dso_local i32 @foo(%struct.t2* nocapture noundef readnone %arg) local_unnamed_addr #0 !dbg !7 {
20entry:
21  call void @llvm.dbg.value(metadata %struct.t2* %arg, metadata !22, metadata !DIExpression()), !dbg !23
22  ret i32 0, !dbg !24
23}
24
25; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn
26define dso_local i32 @bar(%struct.t1* nocapture noundef readnone %arg) local_unnamed_addr #0 !dbg !25 {
27entry:
28  call void @llvm.dbg.value(metadata %struct.t1* %arg, metadata !29, metadata !DIExpression()), !dbg !30
29  ret i32 0, !dbg !31
30}
31
32; CHECK:             .long   10                              # BTF_KIND_INT(id = 7)
33; CHECK-NEXT:        .long   16777216                        # 0x1000000
34; CHECK-NEXT:        .long   4
35; CHECK-NEXT:        .long   16777248                        # 0x1000020
36
37; CHECK:             .long   69                              # BTF_KIND_STRUCT(id = 9)
38; CHECK-NEXT:        .long   67108865                        # 0x4000001
39; CHECK-NEXT:        .long   4
40; CHECK-NEXT:        .long   4
41; CHECK-NEXT:        .long   7
42
43; CHECK:             .byte   97                              # string offset=4
44; CHECK:             .ascii  "t1"                            # string offset=69
45
46; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
47declare void @llvm.dbg.value(metadata, metadata, metadata) #1
48
49attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone willreturn "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
50attributes #1 = { nofree nosync nounwind readnone speculatable willreturn }
51
52!llvm.dbg.cu = !{!0}
53!llvm.module.flags = !{!2, !3, !4, !5}
54!llvm.ident = !{!6}
55
56!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 15.0.0 (https://github.com/llvm/llvm-project.git c34c8afcb85ae9142d0f783bb899c464e8bd2356)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
57!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/llvm/btf_ptr", checksumkind: CSK_MD5, checksum: "d43a0541e830263021772349589e47a5")
58!2 = !{i32 7, !"Dwarf Version", i32 5}
59!3 = !{i32 2, !"Debug Info Version", i32 3}
60!4 = !{i32 1, !"wchar_size", i32 4}
61!5 = !{i32 7, !"frame-pointer", i32 2}
62!6 = !{!"clang version 15.0.0 (https://github.com/llvm/llvm-project.git c34c8afcb85ae9142d0f783bb899c464e8bd2356)"}
63!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 7, type: !8, scopeLine: 7, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !21)
64!8 = !DISubroutineType(types: !9)
65!9 = !{!10, !11}
66!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
67!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64)
68!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t2", file: !1, line: 4, size: 64, elements: !13)
69!13 = !{!14}
70!14 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !12, file: !1, line: 5, baseType: !15, size: 64)
71!15 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !16)
72!16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64)
73!17 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !18)
74!18 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t1", file: !1, line: 1, size: 32, elements: !19)
75!19 = !{!20}
76!20 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !18, file: !1, line: 2, baseType: !10, size: 32)
77!21 = !{!22}
78!22 = !DILocalVariable(name: "arg", arg: 1, scope: !7, file: !1, line: 7, type: !11)
79!23 = !DILocation(line: 0, scope: !7)
80!24 = !DILocation(line: 7, column: 27, scope: !7)
81!25 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 8, type: !26, scopeLine: 8, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !28)
82!26 = !DISubroutineType(types: !27)
83!27 = !{!10, !15}
84!28 = !{!29}
85!29 = !DILocalVariable(name: "arg", arg: 1, scope: !25, file: !1, line: 8, type: !15)
86!30 = !DILocation(line: 0, scope: !25)
87!31 = !DILocation(line: 8, column: 40, scope: !25)
88