113 lines
6.1 KiB
LLVM
113 lines
6.1 KiB
LLVM
; RUN: llc -march=bpfel -o - %s | FileCheck %s
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; RUN: llc -march=bpfeb -o - %s | FileCheck %s
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; Source:
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; struct t1 {
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; int a;
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; };
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; struct t2 {
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; struct t1 *p1;
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; struct t1 *p2;
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; int b;
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; };
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; int foo(struct t2 *arg) {
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; return arg->b;
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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.t2 = type { ptr, ptr, i32 }
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; Function Attrs: argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn
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define dso_local i32 @foo(ptr nocapture noundef readonly %arg) local_unnamed_addr #0 !dbg !7 {
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entry:
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call void @llvm.dbg.value(metadata ptr %arg, metadata !22, metadata !DIExpression()), !dbg !23
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%b = getelementptr inbounds %struct.t2, ptr %arg, i64 0, i32 2, !dbg !24
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%0 = load i32, ptr %b, align 8, !dbg !24, !tbaa !25
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ret i32 %0, !dbg !31
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}
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; CHECK: .long 0 # BTF_KIND_PTR(id = 1)
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; CHECK-NEXT: .long 33554432 # 0x2000000
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; CHECK-NEXT: .long 2
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; CHECK-NEXT: .long 1 # BTF_KIND_STRUCT(id = 2)
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; CHECK-NEXT: .long 67108867 # 0x4000003
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; CHECK-NEXT: .long 24
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; CHECK-NEXT: .long 4
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; CHECK-NEXT: .long 3
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; CHECK-NEXT: .long 0 # 0x0
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; CHECK-NEXT: .long 7
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; CHECK-NEXT: .long 3
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; CHECK-NEXT: .long 64 # 0x40
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; CHECK-NEXT: .long 10
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; CHECK-NEXT: .long 4
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; CHECK-NEXT: .long 128 # 0x80
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; CHECK-NEXT: .long 0 # BTF_KIND_PTR(id = 3)
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; CHECK-NEXT: .long 33554432 # 0x2000000
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; CHECK-NEXT: .long 7
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; CHECK-NEXT: .long 12 # BTF_KIND_INT(id = 4)
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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 0 # BTF_KIND_FUNC_PROTO(id = 5)
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; CHECK-NEXT: .long 218103809 # 0xd000001
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; CHECK-NEXT: .long 4
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; CHECK-NEXT: .long 16
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; CHECK-NEXT: .long 1
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; CHECK-NEXT: .long 20 # BTF_KIND_FUNC(id = 6)
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; CHECK-NEXT: .long 201326593 # 0xc000001
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; CHECK-NEXT: .long 5
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; CHECK-NEXT: .long 60 # BTF_KIND_FWD(id = 7)
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; CHECK-NEXT: .long 117440512 # 0x7000000
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; CHECK-NEXT: .long 0
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; CHECK: .ascii "t2" # string offset=1
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; CHECK: .ascii "p1" # string offset=4
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; CHECK: .ascii "p2" # string offset=7
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; CHECK: .byte 98 # string offset=10
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; CHECK: .ascii "int" # string offset=12
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; CHECK: .ascii "arg" # string offset=16
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; CHECK: .ascii "foo" # string offset=20
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; CHECK: .ascii "t1" # string offset=60
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; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { argmemonly mustprogress nofree norecurse nosync nounwind readonly willreturn "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
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attributes #1 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !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 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "t1.c", directory: "/tmp/home/yhs/tmp3/tests", checksumkind: CSK_MD5, checksum: "9a79ff24a6244249e556afd85288af94")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 7, !"frame-pointer", i32 2}
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!6 = !{!"clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)"}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 9, type: !8, scopeLine: 9, 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: "t2", file: !1, line: 4, size: 192, elements: !13)
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!13 = !{!14, !19, !20}
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!14 = !DIDerivedType(tag: DW_TAG_member, name: "p1", scope: !12, file: !1, line: 5, baseType: !15, size: 64)
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!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64)
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!16 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t1", file: !1, line: 1, size: 32, elements: !17)
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!17 = !{!18}
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!18 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !16, file: !1, line: 2, baseType: !10, size: 32)
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!19 = !DIDerivedType(tag: DW_TAG_member, name: "p2", scope: !12, file: !1, line: 6, baseType: !15, size: 64, offset: 64)
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!20 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !12, file: !1, line: 7, baseType: !10, size: 32, offset: 128)
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!21 = !{!22}
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!22 = !DILocalVariable(name: "arg", arg: 1, scope: !7, file: !1, line: 9, type: !11)
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!23 = !DILocation(line: 0, scope: !7)
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!24 = !DILocation(line: 10, column: 15, scope: !7)
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!25 = !{!26, !30, i64 16}
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!26 = !{!"t2", !27, i64 0, !27, i64 8, !30, i64 16}
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!27 = !{!"any pointer", !28, i64 0}
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!28 = !{!"omnipotent char", !29, i64 0}
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!29 = !{!"Simple C/C++ TBAA"}
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!30 = !{!"int", !28, i64 0}
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!31 = !DILocation(line: 10, column: 3, scope: !7)
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