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 4; Source code: 5; struct t { 6; int a; 7; int b; 8; char c[]; 9; }; 10; static volatile struct t sv = {3, 4, "abcdefghi"}; 11; int test() { return sv.a; } 12; Compilation flag: 13; clang -target bpf -O2 -g -S -emit-llvm test.c 14 15@sv = internal global { i32, i32, [10 x i8] } { i32 3, i32 4, [10 x i8] c"abcdefghi\00" }, align 4, !dbg !0 16 17; Function Attrs: norecurse nounwind 18define dso_local i32 @test() local_unnamed_addr #0 !dbg !21 { 19 %1 = load volatile i32, i32* getelementptr inbounds ({ i32, i32, [10 x i8] }, { i32, i32, [10 x i8] }* @sv, i64 0, i32 0), align 4, !dbg !24, !tbaa !25 20 ret i32 %1, !dbg !29 21} 22 23; CHECK: .section .BTF,"",@progbits 24; CHECK-NEXT: .short 60319 # 0xeb9f 25; CHECK-NEXT: .byte 1 26; CHECK-NEXT: .byte 0 27; CHECK-NEXT: .long 24 28; CHECK-NEXT: .long 0 29; CHECK-NEXT: .long 196 30; CHECK-NEXT: .long 196 31; CHECK-NEXT: .long 95 32; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) 33; CHECK-NEXT: .long 218103808 # 0xd000000 34; CHECK-NEXT: .long 2 35; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) 36; CHECK-NEXT: .long 16777216 # 0x1000000 37; CHECK-NEXT: .long 4 38; CHECK-NEXT: .long 16777248 # 0x1000020 39; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) 40; CHECK-NEXT: .long 201326593 # 0xc000001 41; CHECK-NEXT: .long 1 42; CHECK-NEXT: .long 0 # BTF_KIND_VOLATILE(id = 4) 43; CHECK-NEXT: .long 150994944 # 0x9000000 44; CHECK-NEXT: .long 5 45; CHECK-NEXT: .long 53 # BTF_KIND_STRUCT(id = 5) 46; CHECK-NEXT: .long 67108867 # 0x4000003 47; CHECK-NEXT: .long 8 48; CHECK-NEXT: .long 55 49; CHECK-NEXT: .long 2 50; CHECK-NEXT: .long 0 # 0x0 51; CHECK-NEXT: .long 57 52; CHECK-NEXT: .long 2 53; CHECK-NEXT: .long 32 # 0x20 54; CHECK-NEXT: .long 59 55; CHECK-NEXT: .long 7 56; CHECK-NEXT: .long 64 # 0x40 57; CHECK-NEXT: .long 61 # BTF_KIND_INT(id = 6) 58; CHECK-NEXT: .long 16777216 # 0x1000000 59; CHECK-NEXT: .long 1 60; CHECK-NEXT: .long 16777224 # 0x1000008 61; CHECK-NEXT: .long 0 # BTF_KIND_ARRAY(id = 7) 62; CHECK-NEXT: .long 50331648 # 0x3000000 63; CHECK-NEXT: .long 0 64; CHECK-NEXT: .long 6 65; CHECK-NEXT: .long 8 66; CHECK-NEXT: .long 0 67; CHECK-NEXT: .long 66 # BTF_KIND_INT(id = 8) 68; CHECK-NEXT: .long 16777216 # 0x1000000 69; CHECK-NEXT: .long 4 70; CHECK-NEXT: .long 32 # 0x20 71; CHECK-NEXT: .long 86 # BTF_KIND_VAR(id = 9) 72; CHECK-NEXT: .long 234881024 # 0xe000000 73; CHECK-NEXT: .long 4 74; CHECK-NEXT: .long 0 75; CHECK-NEXT: .long 89 # BTF_KIND_DATASEC(id = 10) 76; CHECK-NEXT: .long 251658241 # 0xf000001 77; CHECK-NEXT: .long 0 78; CHECK-NEXT: .long 9 79; CHECK-NEXT: .long sv 80; CHECK-NEXT: .long 20 81; CHECK-NEXT: .byte 0 # string offset=0 82; CHECK-NEXT: .ascii "int" # string offset=1 83; CHECK-NEXT: .byte 0 84; CHECK-NEXT: .ascii "test" # string offset=5 85; CHECK-NEXT: .byte 0 86; CHECK-NEXT: .ascii ".text" # string offset=10 87; CHECK-NEXT: .byte 0 88; CHECK-NEXT: .ascii "/home/yhs/work/tests/llvm/bug/test.c" # string offset=16 89; CHECK-NEXT: .byte 0 90; CHECK-NEXT: .byte 116 # string offset=53 91; CHECK-NEXT: .byte 0 92; CHECK-NEXT: .byte 97 # string offset=55 93; CHECK-NEXT: .byte 0 94; CHECK-NEXT: .byte 98 # string offset=57 95; CHECK-NEXT: .byte 0 96; CHECK-NEXT: .byte 99 # string offset=59 97; CHECK-NEXT: .byte 0 98; CHECK-NEXT: .ascii "char" # string offset=61 99; CHECK-NEXT: .byte 0 100; CHECK-NEXT: .ascii "__ARRAY_SIZE_TYPE__" # string offset=66 101; CHECK-NEXT: .byte 0 102; CHECK-NEXT: .ascii "sv" # string offset=86 103; CHECK-NEXT: .byte 0 104; CHECK-NEXT: .ascii ".data" # string offset=89 105; CHECK-NEXT: .byte 0 106 107attributes #0 = { norecurse nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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" } 108 109!llvm.dbg.cu = !{!2} 110!llvm.module.flags = !{!17, !18, !19} 111!llvm.ident = !{!20} 112 113!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 114!1 = distinct !DIGlobalVariable(name: "sv", scope: !2, file: !3, line: 6, type: !6, isLocal: true, isDefinition: true) 115!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 8.0.20181009 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None) 116!3 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/llvm/bug") 117!4 = !{} 118!5 = !{!0} 119!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) 120!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t", file: !3, line: 1, size: 64, elements: !8) 121!8 = !{!9, !11, !12} 122!9 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !7, file: !3, line: 2, baseType: !10, size: 32) 123!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 124!11 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !7, file: !3, line: 3, baseType: !10, size: 32, offset: 32) 125!12 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !7, file: !3, line: 4, baseType: !13, offset: 64) 126!13 = !DICompositeType(tag: DW_TAG_array_type, baseType: !14, elements: !15) 127!14 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 128!15 = !{!16} 129!16 = !DISubrange(count: -1) 130!17 = !{i32 2, !"Dwarf Version", i32 4} 131!18 = !{i32 2, !"Debug Info Version", i32 3} 132!19 = !{i32 1, !"wchar_size", i32 4} 133!20 = !{!"clang version 8.0.20181009 "} 134!21 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 7, type: !22, isLocal: false, isDefinition: true, scopeLine: 7, isOptimized: true, unit: !2, retainedNodes: !4) 135!22 = !DISubroutineType(types: !23) 136!23 = !{!10} 137!24 = !DILocation(line: 7, column: 24, scope: !21) 138!25 = !{!26, !26, i64 0} 139!26 = !{!"int", !27, i64 0} 140!27 = !{!"omnipotent char", !28, i64 0} 141!28 = !{!"Simple C/C++ TBAA"} 142!29 = !DILocation(line: 7, column: 14, scope: !21) 143