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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; extern int global_func(char c) __attribute__((weak));6; int test() {7; return global_func(0);8; }9; Compilation flag:10; clang -target bpf -O2 -g -S -emit-llvm test.c11 12; Function Attrs: nounwind13define dso_local i32 @test() local_unnamed_addr !dbg !13 {14entry:15 %call = tail call i32 @global_func(i8 signext 0), !dbg !1616 ret i32 %call, !dbg !1717}18declare !dbg !4 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed_addr19 20; CHECK: .section .BTF,"",@progbits21; CHECK-NEXT: .short 60319 # 0xeb9f22; CHECK-NEXT: .byte 123; CHECK-NEXT: .byte 024; CHECK-NEXT: .long 2425; CHECK-NEXT: .long 026; CHECK-NEXT: .long 8827; CHECK-NEXT: .long 8828; CHECK-NEXT: .long 7229; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)30; CHECK-NEXT: .long 218103808 # 0xd00000031; CHECK-NEXT: .long 232; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)33; CHECK-NEXT: .long 16777216 # 0x100000034; CHECK-NEXT: .long 435; CHECK-NEXT: .long 16777248 # 0x100002036; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)37; CHECK-NEXT: .long 201326593 # 0xc00000138; CHECK-NEXT: .long 139; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)40; CHECK-NEXT: .long 218103809 # 0xd00000141; CHECK-NEXT: .long 242; CHECK-NEXT: .long 043; CHECK-NEXT: .long 544; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5)45; CHECK-NEXT: .long 16777216 # 0x100000046; CHECK-NEXT: .long 147; CHECK-NEXT: .long 16777224 # 0x100000848; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)49; CHECK-NEXT: .long 201326594 # 0xc00000250; CHECK-NEXT: .long 451; CHECK-NEXT: .byte 0 # string offset=052; CHECK-NEXT: .ascii "int" # string offset=153; CHECK-NEXT: .byte 054; CHECK-NEXT: .ascii "test" # string offset=555; CHECK-NEXT: .byte 056; CHECK-NEXT: .ascii ".text" # string offset=1057; CHECK-NEXT: .byte 058; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=1659; CHECK-NEXT: .byte 060; CHECK-NEXT: .ascii "char" # string offset=5561; CHECK-NEXT: .byte 062; CHECK-NEXT: .ascii "global_func" # string offset=6063; CHECK-NEXT: .byte 064 65!llvm.dbg.cu = !{!0}66!llvm.module.flags = !{!9, !10, !11}67!llvm.ident = !{!12}68 69!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)70!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern")71!2 = !{}72!3 = !{!4}73!4 = !DISubprogram(name: "global_func", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)74!5 = !DISubroutineType(types: !6)75!6 = !{!7, !8}76!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)77!8 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)78!9 = !{i32 7, !"Dwarf Version", i32 4}79!10 = !{i32 2, !"Debug Info Version", i32 3}80!11 = !{i32 1, !"wchar_size", i32 4}81!12 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)"}82!13 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 2, type: !14, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)83!14 = !DISubroutineType(types: !15)84!15 = !{!7}85!16 = !DILocation(line: 3, column: 11, scope: !13)86!17 = !DILocation(line: 3, column: 4, scope: !13)87