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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__((section("abc")));6; extern char ch __attribute__((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.c12 13@ch = external dso_local local_unnamed_addr global i8, section "abc", align 1, !dbg !014 15; Function Attrs: nounwind16define dso_local i32 @test() local_unnamed_addr !dbg !16 {17entry:18 %call = tail call i32 @global_func(i8 signext 0), !dbg !1919 %0 = load i8, ptr @ch, align 1, !dbg !20, !tbaa !2120 %conv = sext i8 %0 to i32, !dbg !2021 %add = add nsw i32 %call, %conv, !dbg !2422 ret i32 %add, !dbg !2523}24 25; CHECK: .section .BTF,"",@progbits26; CHECK-NEXT: .short 60319 # 0xeb9f27; CHECK-NEXT: .byte 128; CHECK-NEXT: .byte 029; CHECK-NEXT: .long 2430; CHECK-NEXT: .long 031; CHECK-NEXT: .long 14032; CHECK-NEXT: .long 14033; CHECK-NEXT: .long 7934; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 1)35; CHECK-NEXT: .long 218103808 # 0xd00000036; CHECK-NEXT: .long 237; CHECK-NEXT: .long 1 # BTF_KIND_INT(id = 2)38; CHECK-NEXT: .long 16777216 # 0x100000039; CHECK-NEXT: .long 440; CHECK-NEXT: .long 16777248 # 0x100002041; CHECK-NEXT: .long 5 # BTF_KIND_FUNC(id = 3)42; CHECK-NEXT: .long 201326593 # 0xc00000143; CHECK-NEXT: .long 144; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 4)45; CHECK-NEXT: .long 218103809 # 0xd00000146; CHECK-NEXT: .long 247; CHECK-NEXT: .long 048; CHECK-NEXT: .long 549; CHECK-NEXT: .long 55 # BTF_KIND_INT(id = 5)50; CHECK-NEXT: .long 16777216 # 0x100000051; CHECK-NEXT: .long 152; CHECK-NEXT: .long 16777224 # 0x100000853; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 6)54; CHECK-NEXT: .long 201326594 # 0xc00000255; CHECK-NEXT: .long 456; CHECK-NEXT: .long 72 # BTF_KIND_VAR(id = 7)57; CHECK-NEXT: .long 234881024 # 0xe00000058; CHECK-NEXT: .long 559; CHECK-NEXT: .long 260; CHECK-NEXT: .long 75 # BTF_KIND_DATASEC(id = 8)61; CHECK-NEXT: .long 251658242 # 0xf00000262; CHECK-NEXT: .long 063; CHECK-NEXT: .long 664; CHECK-NEXT: .long global_func65; CHECK-NEXT: .long 066; CHECK-NEXT: .long 767; CHECK-NEXT: .long ch68; CHECK-NEXT: .long 169; CHECK-NEXT: .byte 0 # string offset=070; CHECK-NEXT: .ascii "int" # string offset=171; CHECK-NEXT: .byte 072; CHECK-NEXT: .ascii "test" # string offset=573; CHECK-NEXT: .byte 074; CHECK-NEXT: .ascii ".text" # string offset=1075; CHECK-NEXT: .byte 076; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/extern/test.c" # string offset=1677; CHECK-NEXT: .byte 078; CHECK-NEXT: .ascii "char" # string offset=5579; CHECK-NEXT: .byte 080; CHECK-NEXT: .ascii "global_func" # string offset=6081; CHECK-NEXT: .byte 082; CHECK-NEXT: .ascii "ch" # string offset=7283; CHECK-NEXT: .byte 084; CHECK-NEXT: .ascii "abc" # string offset=7585; CHECK-NEXT: .byte 086 87declare !dbg !6 dso_local i32 @global_func(i8 signext) local_unnamed_addr section "abc"88 89!llvm.dbg.cu = !{!2}90!llvm.module.flags = !{!12, !13, !14}91!llvm.ident = !{!15}92 93!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())94!1 = distinct !DIGlobalVariable(name: "ch", scope: !2, file: !3, line: 2, type: !10, isLocal: false, isDefinition: false)95!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 0ad024346185b3f0b5167438e126568982b1168d)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !11, nameTableKind: None)96!3 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/extern")97!4 = !{}98!5 = !{!6}99!6 = !DISubprogram(name: "global_func", scope: !3, file: !3, line: 1, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)100!7 = !DISubroutineType(types: !8)101!8 = !{!9, !10}102!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)103!10 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)104!11 = !{!0}105!12 = !{i32 2, !"Dwarf Version", i32 4}106!13 = !{i32 2, !"Debug Info Version", i32 3}107!14 = !{i32 1, !"wchar_size", i32 4}108!15 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 0ad024346185b3f0b5167438e126568982b1168d)"}109!16 = distinct !DISubprogram(name: "test", scope: !3, file: !3, line: 3, type: !17, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)110!17 = !DISubroutineType(types: !18)111!18 = !{!9}112!19 = !DILocation(line: 4, column: 10, scope: !16)113!20 = !DILocation(line: 4, column: 27, scope: !16)114!21 = !{!22, !22, i64 0}115!22 = !{!"omnipotent char", !23, i64 0}116!23 = !{!"Simple C/C++ TBAA"}117!24 = !DILocation(line: 4, column: 25, scope: !16)118!25 = !DILocation(line: 4, column: 3, scope: !16)119