70 lines
3.3 KiB
LLVM
70 lines
3.3 KiB
LLVM
; 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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; Source code:
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; extern char a;
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; int foo() { return a; }
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; Compilation flag:
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; clang -target bpf -O2 -g -S -emit-llvm test.c
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@a = external dso_local local_unnamed_addr global i8, align 1
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; Function Attrs: norecurse nounwind readonly
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define dso_local i32 @foo() local_unnamed_addr #0 !dbg !7 {
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%1 = load i8, i8* @a, align 1, !dbg !11, !tbaa !12
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%2 = sext i8 %1 to i32, !dbg !11
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ret i32 %2, !dbg !15
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}
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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 40
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; CHECK-NEXT: .long 40
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; CHECK-NEXT: .long 52
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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: .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 "foo" # string offset=5
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .ascii ".text" # string offset=9
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .ascii "/home/yhs/work/tests/llvm/bug/test.c" # string offset=15
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; CHECK-NEXT: .byte 0
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attributes #0 = { norecurse nounwind readonly "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "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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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 8.0.20181009 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/home/yhs/work/tests/llvm/bug")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 8.0.20181009 "}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !8, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DILocation(line: 2, column: 20, scope: !7)
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!12 = !{!13, !13, i64 0}
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!13 = !{!"omnipotent char", !14, i64 0}
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!14 = !{!"Simple C/C++ TBAA"}
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!15 = !DILocation(line: 2, column: 13, scope: !7)
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