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81bb5f99ad
The data layout strings do not have any effect on llc tests and will become misleadingly out of date as we continue to update the canonical data layout, so remove them from the tests. Differential Revision: https://reviews.llvm.org/D105842
115 lines
5.9 KiB
LLVM
115 lines
5.9 KiB
LLVM
; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
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; Test that byval args get correct DWARF debug locations.
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; These end up in the callee as Wasm locals, which is atypical.
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; From C code:
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; typedef union { int x; float y; } u;
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; typedef struct { int x; float y; } s;
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; int some_func(int x, u some_union, s some_struct, int a[3]) {
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; return x + some_union.x + some_struct.x + a[0];
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; }
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; ModuleID = 't.c'
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source_filename = "t.c"
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target triple = "wasm32-unknown-unknown"
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%union.u = type { i32 }
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%struct.s = type { i32, float }
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; Function Attrs: noinline nounwind optnone
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define hidden i32 @some_func(i32 %x, %union.u* byval(%union.u) align 4 %some_union, %struct.s* byval(%struct.s) align 4 %some_struct, i32* %a) #0 !dbg !7 {
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entry:
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%x.addr = alloca i32, align 4
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%a.addr = alloca i32*, align 4
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store i32 %x, i32* %x.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !23, metadata !DIExpression()), !dbg !24
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call void @llvm.dbg.declare(metadata %union.u* %some_union, metadata !25, metadata !DIExpression()), !dbg !26
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call void @llvm.dbg.declare(metadata %struct.s* %some_struct, metadata !27, metadata !DIExpression()), !dbg !28
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store i32* %a, i32** %a.addr, align 4
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call void @llvm.dbg.declare(metadata i32** %a.addr, metadata !29, metadata !DIExpression()), !dbg !30
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%0 = load i32, i32* %x.addr, align 4, !dbg !31
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%x1 = bitcast %union.u* %some_union to i32*, !dbg !32
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%1 = load i32, i32* %x1, align 4, !dbg !32
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%add = add nsw i32 %0, %1, !dbg !33
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%x2 = getelementptr inbounds %struct.s, %struct.s* %some_struct, i32 0, i32 0, !dbg !34
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%2 = load i32, i32* %x2, align 4, !dbg !34
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%add3 = add nsw i32 %add, %2, !dbg !35
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%3 = load i32*, i32** %a.addr, align 4, !dbg !36
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%arrayidx = getelementptr inbounds i32, i32* %3, i32 0, !dbg !36
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%4 = load i32, i32* %arrayidx, align 4, !dbg !36
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%add4 = add nsw i32 %add3, %4, !dbg !37
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ret i32 %add4, !dbg !38
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}
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; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { noinline nounwind optnone "disable-tail-calls"="false" "frame-pointer"="none" "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" "target-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nofree nosync 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 12.0.0 (https://github.com/llvm/llvm-project.git eccc734a69c0c012ae3160887b65a535b35ead3e)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "t.c", directory: "C:\\src\\llvm")
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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 12.0.0 (https://github.com/llvm/llvm-project.git eccc734a69c0c012ae3160887b65a535b35ead3e)"}
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!7 = distinct !DISubprogram(name: "some_func", scope: !1, file: !1, line: 11, type: !8, scopeLine: 11, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !10, !11, !17, !22}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DIDerivedType(tag: DW_TAG_typedef, name: "u", file: !1, line: 4, baseType: !12)
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!12 = distinct !DICompositeType(tag: DW_TAG_union_type, file: !1, line: 1, size: 32, elements: !13)
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!13 = !{!14, !15}
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!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !12, file: !1, line: 2, baseType: !10, size: 32)
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!15 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !12, file: !1, line: 3, baseType: !16, size: 32)
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!16 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
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!17 = !DIDerivedType(tag: DW_TAG_typedef, name: "s", file: !1, line: 9, baseType: !18)
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!18 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !1, line: 6, size: 64, elements: !19)
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!19 = !{!20, !21}
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!20 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !18, file: !1, line: 7, baseType: !10, size: 32)
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!21 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !18, file: !1, line: 8, baseType: !16, size: 32, offset: 32)
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!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 32)
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!23 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 11, type: !10)
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!24 = !DILocation(line: 11, column: 19, scope: !7)
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!25 = !DILocalVariable(name: "some_union", arg: 2, scope: !7, file: !1, line: 11, type: !11)
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!26 = !DILocation(line: 11, column: 24, scope: !7)
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!27 = !DILocalVariable(name: "some_struct", arg: 3, scope: !7, file: !1, line: 11, type: !17)
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!28 = !DILocation(line: 11, column: 38, scope: !7)
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!29 = !DILocalVariable(name: "a", arg: 4, scope: !7, file: !1, line: 11, type: !22)
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!30 = !DILocation(line: 11, column: 55, scope: !7)
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!31 = !DILocation(line: 12, column: 12, scope: !7)
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!32 = !DILocation(line: 12, column: 27, scope: !7)
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!33 = !DILocation(line: 12, column: 14, scope: !7)
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!34 = !DILocation(line: 12, column: 43, scope: !7)
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!35 = !DILocation(line: 12, column: 29, scope: !7)
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!36 = !DILocation(line: 12, column: 47, scope: !7)
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!37 = !DILocation(line: 12, column: 45, scope: !7)
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!38 = !DILocation(line: 12, column: 5, scope: !7)
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; CHECK-LABEL: DW_TAG_formal_parameter
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; CHECK-NEXT: DW_AT_location (DW_OP_fbreg +12)
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; CHECK-NEXT: DW_AT_name ("x")
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; CHECK-LABEL: DW_TAG_formal_parameter
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; CHECK-NEXT: DW_AT_location (DW_OP_WASM_location 0x0 0x1)
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; CHECK-NEXT: DW_AT_name ("some_union")
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; CHECK-LABEL: DW_TAG_formal_parameter
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; CHECK-NEXT: DW_AT_location (DW_OP_WASM_location 0x0 0x2)
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; CHECK-NEXT: DW_AT_name ("some_struct")
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; CHECK-LABEL: DW_TAG_formal_parameter
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; CHECK-NEXT: DW_AT_location (DW_OP_fbreg +8)
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; CHECK-NEXT: DW_AT_name ("a")
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