87 lines
4.6 KiB
LLVM
87 lines
4.6 KiB
LLVM
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; RUN: llc < %s -mtriple i386-unknown-unknown -O1 -stop-before=finalize-isel | FileCheck %s
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; Test case is designed to show the differences related to how implicit values
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; are handled by SelectionDAGBuilder::EmitFuncArgumentDbgValue.
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;
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; One purpose is to validate a bugfix in DIExpression::isImplicit() related
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; to DIExpressions containing both DW_OP_stack_value and DW_OP_LLVM_fragment.
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;
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; IR generated by:
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;
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; // clang -S -target i386-- -Wall -g -O1 -mllvm -stop-before=finalize-isel
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;
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; typedef struct {
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; int x;
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; int *y;
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; } bar;
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;
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; bar* func1(bar *p1, long p2, bar p3)
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; {
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; bar *foo1 = p1+18;
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; p3.y = &((p1+18)->x);
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; return p1;
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; }
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target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128"
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target triple = "i386-unknown-unknown"
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%struct.bar = type { i32, i32* }
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; Function Attrs: norecurse nounwind readnone
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define dso_local %struct.bar* @func1(%struct.bar* readnone returned %0, i32 %1, i32 %2, i32* nocapture readnone %3) local_unnamed_addr #0 !dbg !8 {
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; CHECK-DAG: DBG_VALUE %fixed-stack.1, 0, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32),
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; CHECK-DAG: DBG_VALUE %fixed-stack.0, 0, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 32, 32),
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; CHECK-DAG: DBG_VALUE %fixed-stack.3, 0, {{.*}}, !DIExpression(),
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; CHECK-DAG: DBG_VALUE %fixed-stack.2, 0, {{.*}}, !DIExpression(),
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; CHECK-DAG: DBG_VALUE %fixed-stack.3, 0, {{.*}}, !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value),
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; CHECK-DAG: DBG_VALUE %fixed-stack.3, 0, {{.*}}, !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value, DW_OP_LLVM_fragment, 32, 32),
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call void @llvm.dbg.value(metadata i32 %2, metadata !24, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)), !dbg !26
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call void @llvm.dbg.value(metadata i32* %3, metadata !24, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32)), !dbg !26
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call void @llvm.dbg.value(metadata %struct.bar* %0, metadata !22, metadata !DIExpression()), !dbg !26
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call void @llvm.dbg.value(metadata i32 %1, metadata !23, metadata !DIExpression()), !dbg !26
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call void @llvm.dbg.value(metadata %struct.bar* %0, metadata !25, metadata !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value)), !dbg !26
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call void @llvm.dbg.value(metadata %struct.bar* %0, metadata !24, metadata !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value, DW_OP_LLVM_fragment, 32, 32)), !dbg !26
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ret %struct.bar* %0, !dbg !27
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { norecurse nounwind readnone }
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attributes #1 = { nounwind readnone speculatable willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (trunk 375507)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "example.c", directory: "/home/ubuntu")
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!2 = !{}
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!3 = !{i32 1, !"NumRegisterParameters", i32 0}
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!4 = !{i32 2, !"Dwarf Version", i32 4}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = !{i32 1, !"wchar_size", i32 4}
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!7 = !{!"clang version 10.0.0 (trunk 375507)"}
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!8 = distinct !DISubprogram(name: "func1", scope: !9, file: !9, line: 6, type: !10, scopeLine: 7, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !21)
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!9 = !DIFile(filename: "./example.c", directory: "/home/ubuntu")
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!10 = !DISubroutineType(types: !11)
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!11 = !{!12, !12, !20, !13}
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 32)
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!13 = !DIDerivedType(tag: DW_TAG_typedef, name: "bar", file: !9, line: 4, baseType: !14)
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!14 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !9, line: 1, size: 64, elements: !15)
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!15 = !{!16, !18}
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!16 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !14, file: !9, line: 2, baseType: !17, size: 32)
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!17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!18 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !14, file: !9, line: 3, baseType: !19, size: 32, offset: 32)
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!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 32)
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!20 = !DIBasicType(name: "long int", size: 32, encoding: DW_ATE_signed)
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!21 = !{!22, !23, !24, !25}
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!22 = !DILocalVariable(name: "p1", arg: 1, scope: !8, file: !9, line: 6, type: !12)
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!23 = !DILocalVariable(name: "p2", arg: 2, scope: !8, file: !9, line: 6, type: !20)
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!24 = !DILocalVariable(name: "p3", arg: 3, scope: !8, file: !9, line: 6, type: !13)
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!25 = !DILocalVariable(name: "foo1", scope: !8, file: !9, line: 8, type: !12)
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!26 = !DILocation(line: 0, scope: !8)
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!27 = !DILocation(line: 10, column: 4, scope: !8)
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