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