121 lines
6.4 KiB
LLVM
121 lines
6.4 KiB
LLVM
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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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; Source:
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; struct tt;
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; struct s1 { const struct tt *mp; };
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; int test1(struct s1 *arg)
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; {
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; return 0;
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; }
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;
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; struct tt { int m1; int m2; };
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; struct s2 { const struct tt m3; };
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; int test2(struct s2 *arg)
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; {
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; return arg->m3.m1;
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; }
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; Compilation flags:
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; clang -target bpf -O2 -g -S -emit-llvm t.c
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%struct.s1 = type { %struct.tt* }
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%struct.tt = type { i32, i32 }
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%struct.s2 = type { %struct.tt }
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; Function Attrs: norecurse nounwind readnone
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define dso_local i32 @test1(%struct.s1* nocapture readnone %arg) local_unnamed_addr #0 !dbg !7 {
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entry:
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call void @llvm.dbg.value(metadata %struct.s1* %arg, metadata !22, metadata !DIExpression()), !dbg !23
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ret i32 0, !dbg !24
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}
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; Function Attrs: norecurse nounwind readonly
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define dso_local i32 @test2(%struct.s2* nocapture readonly %arg) local_unnamed_addr #1 !dbg !25 {
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entry:
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call void @llvm.dbg.value(metadata %struct.s2* %arg, metadata !33, metadata !DIExpression()), !dbg !34
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%m1 = getelementptr inbounds %struct.s2, %struct.s2* %arg, i64 0, i32 0, i32 0, !dbg !35
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%0 = load i32, i32* %m1, align 4, !dbg !35, !tbaa !36
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ret i32 %0, !dbg !42
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}
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; CHECK: .long 0 # BTF_KIND_CONST(id = 4)
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; CHECK-NEXT: .long 167772160 # 0xa000000
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; CHECK-NEXT: .long 10
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; CHECK: .long 60 # BTF_KIND_STRUCT(id = 9)
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; CHECK-NEXT: .long 67108865 # 0x4000001
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; CHECK-NEXT: .long 8
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; CHECK-NEXT: .long 63
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; CHECK-NEXT: .long 4
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; CHECK-NEXT: .long 0 # 0x0
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; CHECK: .long 66 # BTF_KIND_STRUCT(id = 10)
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; CHECK-NEXT: .long 67108866 # 0x4000002
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; CHECK-NEXT: .long 8
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; CHECK-NEXT: .long 69
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; CHECK-NEXT: .long 6
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; CHECK-NEXT: .long 0 # 0x0
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; CHECK-NEXT: .long 72
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; CHECK-NEXT: .long 6
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; CHECK-NEXT: .long 32 # 0x20
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; CHECK: .ascii "s2" # string offset=60
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; CHECK: .ascii "m3" # string offset=63
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; CHECK: .ascii "tt" # string offset=66
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; CHECK: .ascii "m1" # string offset=69
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; CHECK: .ascii "m2" # string offset=72
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { norecurse nounwind readnone "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"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { norecurse nounwind readonly "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"="true" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind readnone speculatable willreturn }
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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 11.0.0 (https://github.com/llvm/llvm-project.git 7cfd267c518aba226b34b7fbfe8db70000b22053)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "t.c", directory: "/tmp/home/yhs/work/tests/btf")
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!2 = !{}
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!3 = !{i32 7, !"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 11.0.0 (https://github.com/llvm/llvm-project.git 7cfd267c518aba226b34b7fbfe8db70000b22053)"}
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!7 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !8, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !21)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !11}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64)
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!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s1", file: !1, line: 2, size: 64, elements: !13)
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!13 = !{!14}
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!14 = !DIDerivedType(tag: DW_TAG_member, name: "mp", scope: !12, file: !1, line: 2, baseType: !15, size: 64)
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!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64)
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!16 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !17)
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!17 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "tt", file: !1, line: 8, size: 64, elements: !18)
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!18 = !{!19, !20}
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!19 = !DIDerivedType(tag: DW_TAG_member, name: "m1", scope: !17, file: !1, line: 8, baseType: !10, size: 32)
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!20 = !DIDerivedType(tag: DW_TAG_member, name: "m2", scope: !17, file: !1, line: 8, baseType: !10, size: 32, offset: 32)
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!21 = !{!22}
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!22 = !DILocalVariable(name: "arg", arg: 1, scope: !7, file: !1, line: 3, type: !11)
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!23 = !DILocation(line: 0, scope: !7)
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!24 = !DILocation(line: 5, column: 3, scope: !7)
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!25 = distinct !DISubprogram(name: "test2", scope: !1, file: !1, line: 10, type: !26, scopeLine: 11, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !32)
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!26 = !DISubroutineType(types: !27)
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!27 = !{!10, !28}
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!28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !29, size: 64)
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!29 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "s2", file: !1, line: 9, size: 64, elements: !30)
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!30 = !{!31}
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!31 = !DIDerivedType(tag: DW_TAG_member, name: "m3", scope: !29, file: !1, line: 9, baseType: !16, size: 64)
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!32 = !{!33}
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!33 = !DILocalVariable(name: "arg", arg: 1, scope: !25, file: !1, line: 10, type: !28)
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!34 = !DILocation(line: 0, scope: !25)
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!35 = !DILocation(line: 12, column: 18, scope: !25)
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!36 = !{!37, !39, i64 0}
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!37 = !{!"s2", !38, i64 0}
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!38 = !{!"tt", !39, i64 0, !39, i64 4}
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!39 = !{!"int", !40, i64 0}
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!40 = !{!"omnipotent char", !41, i64 0}
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!41 = !{!"Simple C/C++ TBAA"}
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!42 = !DILocation(line: 12, column: 3, scope: !25)
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