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1; RUN: llc -mtriple=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s2; RUN: llc -mtriple=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s3;4; Source code:5; typedef struct t1 { int f1; } __t1;6; extern __t1 global __attribute__((weak));7; int test() { return global.f1; }8; Compilation flag:9; clang -target bpf -O2 -g -S -emit-llvm test.c10 11%struct.t1 = type { i32 }12 13@global = extern_weak dso_local local_unnamed_addr global %struct.t1, align 4, !dbg !014; Function Attrs: norecurse nounwind readonly15define dso_local i32 @test() local_unnamed_addr !dbg !15 {16entry:17 %0 = load i32, ptr @global, align 4, !dbg !18, !tbaa !1918 ret i32 %0, !dbg !2419}20 21; CHECK: .section .BTF,"",@progbits22; CHECK-NEXT: .short 60319 # 0xeb9f23; CHECK-NEXT: .byte 124; CHECK-NEXT: .byte 025; CHECK-NEXT: .long 2426; CHECK-NEXT: .long 027; CHECK-NEXT: .long 9228; CHECK-NEXT: .long 9229; CHECK-NEXT: .long 7330; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)31; CHECK-NEXT: .long 218103808 # 0xd00000032; CHECK-NEXT: .long 233; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)34; CHECK-NEXT: .long 16777216 # 0x100000035; CHECK-NEXT: .long 436; CHECK-NEXT: .long 16777248 # 0x100002037; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)38; CHECK-NEXT: .long 201326593 # 0xc00000139; CHECK-NEXT: .long 140; CHECK-NEXT: .long 55 # BTF_KIND_TYPEDEF(id = 4)41; CHECK-NEXT: .long 134217728 # 0x800000042; CHECK-NEXT: .long 543; CHECK-NEXT: .long 60 # BTF_KIND_STRUCT(id = 5)44; CHECK-NEXT: .long 67108865 # 0x400000145; CHECK-NEXT: .long 446; CHECK-NEXT: .long 6347; CHECK-NEXT: .long 248; CHECK-NEXT: .long 0 # 0x049; CHECK-NEXT: .long 66 # BTF_KIND_VAR(id = 6)50; CHECK-NEXT: .long 234881024 # 0xe00000051; CHECK-NEXT: .long 452; CHECK-NEXT: .long 253; CHECK-NEXT: .byte 0 # string offset=054; CHECK-NEXT: .ascii "int" # string offset=155; CHECK-NEXT: .byte 056; CHECK-NEXT: .ascii "test" # string offset=557; CHECK-NEXT: .byte 058; CHECK-NEXT: .ascii ".text" # string offset=1059; CHECK-NEXT: .byte 060; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=1661; CHECK-NEXT: .byte 062; CHECK-NEXT: .ascii "__t1" # string offset=5563; CHECK-NEXT: .byte 064; CHECK-NEXT: .ascii "t1" # string offset=6065; CHECK-NEXT: .byte 066; CHECK-NEXT: .ascii "f1" # string offset=6367; CHECK-NEXT: .byte 068; CHECK-NEXT: .ascii "global" # string offset=6669; CHECK-NEXT: .byte 070 71!llvm.dbg.cu = !{!2}72!llvm.module.flags = !{!11, !12, !13}73!llvm.ident = !{!14}74 75!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())76!1 = distinct !DIGlobalVariable(name: "global", scope: !2, file: !3, line: 2, type: !6, isLocal: false, isDefinition: false)77!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)78!3 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern")79!4 = !{}80!5 = !{!0}81!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "__t1", file: !3, line: 1, baseType: !7)82!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t1", file: !3, line: 1, size: 32, elements: !8)83!8 = !{!9}84!9 = !DIDerivedType(tag: DW_TAG_member, name: "f1", scope: !7, file: !3, line: 1, baseType: !10, size: 32)85!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)86!11 = !{i32 7, !"Dwarf Version", i32 4}87!12 = !{i32 2, !"Debug Info Version", i32 3}88!13 = !{i32 1, !"wchar_size", i32 4}89!14 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)"}90!15 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 3, type: !16, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)91!16 = !DISubroutineType(types: !17)92!17 = !{!10}93!18 = !DILocation(line: 3, column: 28, scope: !15)94!19 = !{!20, !21, i64 0}95!20 = !{!"t1", !21, i64 0}96!21 = !{!"int", !22, i64 0}97!22 = !{!"omnipotent char", !23, i64 0}98!23 = !{!"Simple C/C++ TBAA"}99!24 = !DILocation(line: 3, column: 14, scope: !15)100