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; extern int global_func(char c) __attribute__((weak, section("abc"))); 6; extern char ch __attribute__((weak, section("abc"))); 7; int test() { 8; return global_func(0) + ch; 9; } 10; Compilation flag: 11; clang -target bpf -O2 -g -S -emit-llvm test.c 12 13@ch = extern_weak dso_local local_unnamed_addr global i8, section "abc", align 1, !dbg !0 14; Function Attrs: nounwind 15define dso_local i32 @test() local_unnamed_addr #0 !dbg !16 { 16entry: 17 %call = tail call i32 @global_func(i8 signext 0) #2, !dbg !19 18 %0 = load i8, i8* @ch, align 1, !dbg !20, !tbaa !21 19 %conv = sext i8 %0 to i32, !dbg !20 20 %add = add nsw i32 %call, %conv, !dbg !24 21 ret i32 %add, !dbg !25 22} 23declare !dbg !6 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed_addr #1 section "abc" 24 25; CHECK: .section .BTF,"",@progbits 26; CHECK-NEXT: .short 60319 # 0xeb9f 27; CHECK-NEXT: .byte 1 28; CHECK-NEXT: .byte 0 29; CHECK-NEXT: .long 24 30; CHECK-NEXT: .long 0 31; CHECK-NEXT: .long 128 32; CHECK-NEXT: .long 128 33; CHECK-NEXT: .long 79 34; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) 35; CHECK-NEXT: .long 218103808 # 0xd000000 36; CHECK-NEXT: .long 2 37; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) 38; CHECK-NEXT: .long 16777216 # 0x1000000 39; CHECK-NEXT: .long 4 40; CHECK-NEXT: .long 16777248 # 0x1000020 41; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) 42; CHECK-NEXT: .long 201326593 # 0xc000001 43; CHECK-NEXT: .long 1 44; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4) 45; CHECK-NEXT: .long 218103809 # 0xd000001 46; CHECK-NEXT: .long 2 47; CHECK-NEXT: .long 0 48; CHECK-NEXT: .long 5 49; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5) 50; CHECK-NEXT: .long 16777216 # 0x1000000 51; CHECK-NEXT: .long 1 52; CHECK-NEXT: .long 16777224 # 0x1000008 53; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6) 54; CHECK-NEXT: .long 201326594 # 0xc000002 55; CHECK-NEXT: .long 4 56; CHECK-NEXT: .long 72 # BTF_KIND_VAR(id = 7) 57; CHECK-NEXT: .long 234881024 # 0xe000000 58; CHECK-NEXT: .long 5 59; CHECK-NEXT: .long 2 60; CHECK-NEXT: .long 75 # BTF_KIND_DATASEC(id = 8) 61; CHECK-NEXT: .long 251658241 # 0xf000001 62; CHECK-NEXT: .long 0 63; CHECK-NEXT: .long 7 64; CHECK-NEXT: .long ch 65; CHECK-NEXT: .long 1 66; CHECK-NEXT: .byte 0 # string offset=0 67; CHECK-NEXT: .ascii "int" # string offset=1 68; CHECK-NEXT: .byte 0 69; CHECK-NEXT: .ascii "test" # string offset=5 70; CHECK-NEXT: .byte 0 71; CHECK-NEXT: .ascii ".text" # string offset=10 72; CHECK-NEXT: .byte 0 73; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16 74; CHECK-NEXT: .byte 0 75; CHECK-NEXT: .ascii "char" # string offset=55 76; CHECK-NEXT: .byte 0 77; CHECK-NEXT: .ascii "global_func" # string offset=60 78; CHECK-NEXT: .byte 0 79; CHECK-NEXT: .ascii "ch" # string offset=72 80; CHECK-NEXT: .byte 0 81; CHECK-NEXT: .ascii "abc" # string offset=75 82; CHECK-NEXT: .byte 0 83 84attributes #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" } 85attributes #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" } 86attributes #2 = { nounwind } 87 88!llvm.dbg.cu = !{!2} 89!llvm.module.flags = !{!12, !13, !14} 90!llvm.ident = !{!15} 91 92!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 93!1 = distinct !DIGlobalVariable(name: "ch", scope: !2, file: !3, line: 2, type: !10, isLocal: false, isDefinition: false) 94!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, retainedTypes: !5, globals: !11, nameTableKind: None) 95!3 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern") 96!4 = !{} 97!5 = !{!6} 98!6 = !DISubprogram(name: "global_func", scope: !3, file: !3, line: 1, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4) 99!7 = !DISubroutineType(types: !8) 100!8 = !{!9, !10} 101!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 102!10 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) 103!11 = !{!0} 104!12 = !{i32 7, !"Dwarf Version", i32 4} 105!13 = !{i32 2, !"Debug Info Version", i32 3} 106!14 = !{i32 1, !"wchar_size", i32 4} 107!15 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)"} 108!16 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 3, type: !17, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) 109!17 = !DISubroutineType(types: !18) 110!18 = !{!9} 111!19 = !DILocation(line: 4, column: 10, scope: !16) 112!20 = !DILocation(line: 4, column: 27, scope: !16) 113!21 = !{!22, !22, i64 0} 114!22 = !{!"omnipotent char", !23, i64 0} 115!23 = !{!"Simple C/C++ TBAA"} 116!24 = !DILocation(line: 4, column: 25, scope: !16) 117!25 = !DILocation(line: 4, column: 3, scope: !16) 118