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97 lines
5.8 KiB
97 lines
5.8 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 foo(void);
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; static __attribute__((noinline)) int test1() { return foo(); }
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; int test2() { return test1(); }
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; Compilation flag:
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; clang -target bpf -O2 -g -S -emit-llvm test.c
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; Function Attrs: nounwind
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define dso_local i32 @test2() local_unnamed_addr #0 !dbg !12 {
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entry:
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%call = tail call fastcc i32 @test1(), !dbg !13
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ret i32 %call, !dbg !14
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}
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; Function Attrs: noinline nounwind
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define internal fastcc i32 @test1() unnamed_addr #1 !dbg !15 {
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entry:
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%call = tail call i32 @foo() #3, !dbg !16
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ret i32 %call, !dbg !17
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}
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declare !dbg !4 dso_local i32 @foo() local_unnamed_addr #2
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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 88
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; CHECK-NEXT: .long 88
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; CHECK-NEXT: .long 64
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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 218103808 # 0xd000000
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; CHECK-NEXT: .long 2
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; CHECK-NEXT: .long 54 # BTF_KIND_FUNC(id = 5)
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; CHECK-NEXT: .long 201326592 # 0xc000000
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; CHECK-NEXT: .long 4
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; CHECK-NEXT: .long 0 # BTF_KIND_FUNC_PROTO(id = 6)
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; CHECK-NEXT: .long 218103808 # 0xd000000
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; CHECK-NEXT: .long 2
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; CHECK-NEXT: .long 60 # BTF_KIND_FUNC(id = 7)
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; CHECK-NEXT: .long 201326594 # 0xc000002
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; CHECK-NEXT: .long 6
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; CHECK-NEXT: .byte 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 "test2" # string offset=5
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .ascii ".text" # string offset=11
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .ascii "/tmp/home/yhs/work/tests/bugs/test.c" # string offset=17
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .ascii "test1" # string offset=54
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .ascii "foo" # string offset=60
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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 = { noinline 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 #2 = { "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 #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!8, !9, !10}
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!llvm.ident = !{!11}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 000f95c4157aee07bd4ffc3f59ffdb6c7ecae4af)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/bugs")
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!2 = !{}
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!3 = !{!4}
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!4 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7}
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!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!8 = !{i32 7, !"Dwarf Version", i32 4}
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!9 = !{i32 2, !"Debug Info Version", i32 3}
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!10 = !{i32 1, !"wchar_size", i32 4}
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!11 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 000f95c4157aee07bd4ffc3f59ffdb6c7ecae4af)"}
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!12 = distinct !DISubprogram(name: "test2", scope: !1, file: !1, line: 3, type: !5, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!13 = !DILocation(line: 3, column: 22, scope: !12)
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!14 = !DILocation(line: 3, column: 15, scope: !12)
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!15 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 2, type: !5, scopeLine: 2, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!16 = !DILocation(line: 2, column: 55, scope: !15)
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!17 = !DILocation(line: 2, column: 48, scope: !15)
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