1 ; RUN: opt -O2 %s | llvm-dis > %t1
2 ; RUN: llc -filetype=asm -o - %t1 | FileCheck -check-prefixes=CHECK %s
3 ; RUN: llc -mattr=+alu32 -filetype=asm -o - %t1 | FileCheck -check-prefixes=CHECK %s
6 ; typedef struct v3 { int a; __int b[4][4][4]; } __v3;
7 ; #define _(x) (__builtin_preserve_access_index(x))
8 ; int get_value(const int *arg);
9 ; int test(__v3 *arg) {
10 ; return get_value(_(&arg[1].b[2][3][2]));
13 ; clang -target bpf -O2 -g -S -emit-llvm -Xclang -disable-llvm-passes test.c
17 %struct.v3 = type { i32, [4 x [4 x [4 x i32]]] }
19 ; Function Attrs: nounwind
20 define dso_local i32 @test(ptr %arg) local_unnamed_addr #0 !dbg !23 {
22 call void @llvm.dbg.value(metadata ptr %arg, metadata !27, metadata !DIExpression()), !dbg !28
23 %0 = tail call ptr @llvm.preserve.array.access.index.p0.v3s.p0.v3s(ptr elementtype(%struct.v3) %arg, i32 0, i32 1), !dbg !29, !llvm.preserve.access.index !4
24 %1 = tail call ptr @llvm.preserve.struct.access.index.p0.p0.v3s(ptr elementtype(%struct.v3) %0, i32 1, i32 1), !dbg !29, !llvm.preserve.access.index !6
25 %2 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x [4 x [4 x i32]]]) %1, i32 1, i32 2), !dbg !29, !llvm.preserve.access.index !11
26 %3 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x [4 x i32]]) %2, i32 1, i32 3), !dbg !29, !llvm.preserve.access.index !15
27 %4 = tail call ptr @llvm.preserve.array.access.index.p0.p0(ptr elementtype([4 x i32]) %3, i32 1, i32 2), !dbg !29, !llvm.preserve.access.index !17
28 %call = tail call i32 @get_value(ptr %4) #4, !dbg !30
29 ret i32 %call, !dbg !31
34 ; CHECK: call get_value
36 ; CHECK: .long 6 # BTF_KIND_STRUCT(id = [[TID1:[0-9]+]])
38 ; CHECK: .ascii "v3" # string offset=6
39 ; CHECK: .ascii ".text" # string offset=52
40 ; CHECK: .ascii "1:1:2:3:2" # string offset=58
42 ; CHECK: .long 16 # FieldReloc
43 ; CHECK-NEXT: .long 52 # Field reloc section string offset=52
45 ; CHECK-NEXT: .long .Ltmp{{[0-9]+}}
46 ; CHECK-NEXT: .long [[TID1]]
47 ; CHECK-NEXT: .long 58
50 declare dso_local i32 @get_value(ptr) local_unnamed_addr #1
52 ; Function Attrs: nounwind readnone
53 declare ptr @llvm.preserve.array.access.index.p0.v3s.p0.v3s(ptr, i32, i32) #2
55 ; Function Attrs: nounwind readnone
56 declare ptr @llvm.preserve.struct.access.index.p0.p0.v3s(ptr, i32, i32) #2
58 ; Function Attrs: nounwind readnone
59 declare ptr @llvm.preserve.array.access.index.p0.p0(ptr, i32, i32) #2
61 ; Function Attrs: nounwind readnone
63 ; Function Attrs: nounwind readnone
65 ; Function Attrs: nounwind readnone speculatable willreturn
66 declare void @llvm.dbg.value(metadata, metadata, metadata) #3
68 attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
69 attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
70 attributes #2 = { nounwind readnone }
71 attributes #3 = { nounwind readnone speculatable willreturn }
72 attributes #4 = { nounwind }
75 !llvm.module.flags = !{!19, !20, !21}
78 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (trunk 367256) (llvm/trunk 367266)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
79 !1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/llvm/cast")
81 !3 = !{!4, !11, !15, !17}
82 !4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)
83 !5 = !DIDerivedType(tag: DW_TAG_typedef, name: "__v3", file: !1, line: 2, baseType: !6)
84 !6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "v3", file: !1, line: 2, size: 2080, elements: !7)
86 !8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !1, line: 2, baseType: !9, size: 32)
87 !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
88 !10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !1, line: 2, baseType: !11, size: 2048, offset: 32)
89 !11 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 2048, elements: !13)
90 !12 = !DIDerivedType(tag: DW_TAG_typedef, name: "__int", file: !1, line: 1, baseType: !9)
91 !13 = !{!14, !14, !14}
92 !14 = !DISubrange(count: 4)
93 !15 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 512, elements: !16)
95 !17 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 128, elements: !18)
97 !19 = !{i32 2, !"Dwarf Version", i32 4}
98 !20 = !{i32 2, !"Debug Info Version", i32 3}
99 !21 = !{i32 1, !"wchar_size", i32 4}
100 !22 = !{!"clang version 10.0.0 (trunk 367256) (llvm/trunk 367266)"}
101 !23 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 5, type: !24, scopeLine: 5, flags: DIFlagPrototyped, isDefinition: true, isOptimized: true, unit: !0, retainedNodes: !26)
102 !24 = !DISubroutineType(types: !25)
105 !27 = !DILocalVariable(name: "arg", arg: 1, scope: !23, file: !1, line: 5, type: !4)
106 !28 = !DILocation(line: 0, scope: !23)
107 !29 = !DILocation(line: 6, column: 20, scope: !23)
108 !30 = !DILocation(line: 6, column: 10, scope: !23)
109 !31 = !DILocation(line: 6, column: 3, scope: !23)