; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s ; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s ; ; Source code: ; extern int global_func(char c) __attribute__((weak, section("abc"))); ; extern char ch __attribute__((weak, section("abc"))); ; int test() { ; return global_func(0) + ch; ; } ; Compilation flag: ; clang -target bpf -O2 -g -S -emit-llvm test.c @ch = extern_weak dso_local local_unnamed_addr global i8, section "abc", align 1, !dbg !0 ; Function Attrs: nounwind define dso_local i32 @test() local_unnamed_addr #0 !dbg !16 { entry: %call = tail call i32 @global_func(i8 signext 0) #2, !dbg !19 %0 = load i8, i8* @ch, align 1, !dbg !20, !tbaa !21 %conv = sext i8 %0 to i32, !dbg !20 %add = add nsw i32 %call, %conv, !dbg !24 ret i32 %add, !dbg !25 } declare !dbg !6 extern_weak dso_local i32 @global_func(i8 signext) local_unnamed_addr #1 section "abc" ; CHECK: .section .BTF,"",@progbits ; CHECK-NEXT: .short 60319 # 0xeb9f ; CHECK-NEXT: .byte 1 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .long 24 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 128 ; CHECK-NEXT: .long 128 ; CHECK-NEXT: .long 79 ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1) ; CHECK-NEXT: .long 218103808 # 0xd000000 ; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2) ; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 16777248 # 0x1000020 ; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3) ; CHECK-NEXT: .long 201326593 # 0xc000001 ; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4) ; CHECK-NEXT: .long 218103809 # 0xd000001 ; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 5 ; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5) ; CHECK-NEXT: .long 16777216 # 0x1000000 ; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long 16777224 # 0x1000008 ; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6) ; CHECK-NEXT: .long 201326594 # 0xc000002 ; CHECK-NEXT: .long 4 ; CHECK-NEXT: .long 72 # BTF_KIND_VAR(id = 7) ; CHECK-NEXT: .long 234881024 # 0xe000000 ; CHECK-NEXT: .long 5 ; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long 75 # BTF_KIND_DATASEC(id = 8) ; CHECK-NEXT: .long 251658241 # 0xf000001 ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 7 ; CHECK-NEXT: .long ch ; CHECK-NEXT: .long 1 ; CHECK-NEXT: .byte 0 # string offset=0 ; CHECK-NEXT: .ascii "int" # string offset=1 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "test" # string offset=5 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii ".text" # string offset=10 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=16 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "char" # string offset=55 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "global_func" # string offset=60 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "ch" # string offset=72 ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .ascii "abc" # string offset=75 ; CHECK-NEXT: .byte 0 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" } 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" } attributes #2 = { nounwind } !llvm.dbg.cu = !{!2} !llvm.module.flags = !{!12, !13, !14} !llvm.ident = !{!15} !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = distinct !DIGlobalVariable(name: "ch", scope: !2, file: !3, line: 2, type: !10, isLocal: false, isDefinition: false) !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) !3 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern") !4 = !{} !5 = !{!6} !6 = !DISubprogram(name: "global_func", scope: !3, file: !3, line: 1, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4) !7 = !DISubroutineType(types: !8) !8 = !{!9, !10} !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !10 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) !11 = !{!0} !12 = !{i32 7, !"Dwarf Version", i32 4} !13 = !{i32 2, !"Debug Info Version", i32 3} !14 = !{i32 1, !"wchar_size", i32 4} !15 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 71a9518c93fe1dce9611c24bc707e5baf1f39f0d)"} !16 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 3, type: !17, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) !17 = !DISubroutineType(types: !18) !18 = !{!9} !19 = !DILocation(line: 4, column: 10, scope: !16) !20 = !DILocation(line: 4, column: 27, scope: !16) !21 = !{!22, !22, i64 0} !22 = !{!"omnipotent char", !23, i64 0} !23 = !{!"Simple C/C++ TBAA"} !24 = !DILocation(line: 4, column: 25, scope: !16) !25 = !DILocation(line: 4, column: 3, scope: !16)