forked from OSchip/llvm-project
100 lines
5.8 KiB
LLVM
100 lines
5.8 KiB
LLVM
; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck %s
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; RUN: llc -march=bpfeb -filetype=asm -o - %s | FileCheck %s
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; RUN: llc -march=bpfel -mattr=+alu32 -filetype=asm -o - %s | FileCheck %s
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; RUN: llc -march=bpfeb -mattr=+alu32 -filetype=asm -o - %s | FileCheck %s
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;
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; Source code:
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; struct s { int a; int b; };
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; struct t { int c; int d; };
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; #define _(x) (__builtin_preserve_access_index(x))
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; int get_value(const void *addr1, const void *addr2);
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; int test(struct s *arg1, struct t *arg2) {
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; return get_value(_(&arg1->b), _(&arg2->d));
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; }
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; clang -target bpf -S -O2 -g -emit-llvm test.c
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%struct.s = type { i32, i32 }
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%struct.t = type { i32, i32 }
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; Function Attrs: nounwind
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define dso_local i32 @test(%struct.s* %arg1, %struct.t* %arg2) local_unnamed_addr #0 !dbg !7 {
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entry:
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call void @llvm.dbg.value(metadata %struct.s* %arg1, metadata !22, metadata !DIExpression()), !dbg !24
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call void @llvm.dbg.value(metadata %struct.t* %arg2, metadata !23, metadata !DIExpression()), !dbg !24
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%0 = tail call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.ss(%struct.s* %arg1, i32 1, i32 1), !dbg !25, !llvm.preserve.access.index !12
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%1 = bitcast i32* %0 to i8*, !dbg !25
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%2 = tail call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.ts(%struct.t* %arg2, i32 1, i32 1), !dbg !26, !llvm.preserve.access.index !17
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%3 = bitcast i32* %2 to i8*, !dbg !26
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%call = tail call i32 @get_value(i8* %1, i8* %3) #4, !dbg !27
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ret i32 %call, !dbg !28
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}
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; CHECK: .section .BTF,"",@progbits
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; CHECK: .ascii ".text" # string offset=[[SEC_INDEX:[0-9]+]]
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; CHECK-NEXT: .byte 0
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; CHECK: .ascii "0:1" # string offset=[[ACCESS_STR:[0-9]+]]
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; CHECK-NEXT: .byte 0
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; CHECK: .section .BTF.ext,"",@progbits
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; CHECK: .long 16 # FieldReloc
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; CHECK-NEXT: .long [[SEC_INDEX]] # Field reloc section string offset=[[SEC_INDEX]]
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; CHECK-NEXT: .long 2
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; CHECK-NEXT: .long .Ltmp{{[0-9]+}}
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; CHECK-NEXT: .long {{[0-9]+}}
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; CHECK-NEXT: .long [[ACCESS_STR]]
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long .Ltmp{{[0-9]+}}
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; CHECK-NEXT: .long {{[0-9]+}}
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; CHECK-NEXT: .long [[ACCESS_STR]]
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; CHECK-NEXT: .long 0
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declare dso_local i32 @get_value(i8*, i8*) local_unnamed_addr #1
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; Function Attrs: nounwind readnone
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declare i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.ss(%struct.s*, i32 immarg, i32 immarg) #2
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; Function Attrs: nounwind readnone
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declare i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.ts(%struct.t*, i32 immarg, i32 immarg) #2
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #3
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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 readnone }
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attributes #3 = { nounwind readnone speculatable }
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attributes #4 = { nounwind }
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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 10.0.0 (trunk 366831) (llvm/trunk 366867)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/tmp/home/yhs/work/tests/llvm/core-bugs")
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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 10.0.0 (trunk 366831) (llvm/trunk 366867)"}
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!7 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 5, type: !8, scopeLine: 5, flags: DIFlagPrototyped, isDefinition: true, isOptimized: true, unit: !0, retainedNodes: !21)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !11, !16}
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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: "s", file: !1, line: 1, size: 64, elements: !13)
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!13 = !{!14, !15}
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!14 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !12, file: !1, line: 1, baseType: !10, size: 32)
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!15 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !12, file: !1, line: 1, baseType: !10, size: 32, offset: 32)
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!16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64)
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!17 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t", file: !1, line: 2, size: 64, elements: !18)
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!18 = !{!19, !20}
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!19 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !17, file: !1, line: 2, baseType: !10, size: 32)
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!20 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !17, file: !1, line: 2, baseType: !10, size: 32, offset: 32)
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!21 = !{!22, !23}
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!22 = !DILocalVariable(name: "arg1", arg: 1, scope: !7, file: !1, line: 5, type: !11)
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!23 = !DILocalVariable(name: "arg2", arg: 2, scope: !7, file: !1, line: 5, type: !16)
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!24 = !DILocation(line: 0, scope: !7)
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!25 = !DILocation(line: 6, column: 20, scope: !7)
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!26 = !DILocation(line: 6, column: 33, scope: !7)
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!27 = !DILocation(line: 6, column: 10, scope: !7)
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!28 = !DILocation(line: 6, column: 3, scope: !7)
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