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https://github.com/c64scene-ar/llvm-6502.git
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d397a52305
Fix testcases that don't pass the verifier after a WIP patch to check
`MDSubprogram` operands more effectively. I found the following issues:
- When `isDefinition: false`, the `variables:` field might point at
`!{i32 786468}`, or at a tuple that pointed at an empty tuple with
the comment "previously: invalid DW_TAG_base_type" (I vaguely recall
adding those comments during an upgrade script). In these cases, I
just dropped the array.
- The `variables:` field might point at something like `!{!{!8}}`,
where `!8` was an `MDLocation`. I removed the extra layer of
indirection.
- Invalid `type:` (not an `MDSubroutineType`).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233466 91177308-0d34-0410-b5e6-96231b3b80d8
96 lines
4.5 KiB
LLVM
96 lines
4.5 KiB
LLVM
; REQUIRES: object-emission
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; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; From source:
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; struct foo {
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; int __attribute__((always_inline)) func(int x) { return x + 2; }
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; };
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; int i;
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; int main() {
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; return foo().func(i);
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; }
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; CHECK: DW_TAG_structure_type
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; CHECK: DW_TAG_subprogram
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; But make sure we emit DW_AT_object_pointer on the abstract definition.
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; CHECK: [[ABSTRACT_ORIGIN:.*]]: DW_TAG_subprogram
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; CHECK-NOT: {{NULL|TAG}}
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; CHECK: DW_AT_specification {{.*}} "_ZN3foo4funcEi"
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; CHECK-NOT: {{NULL|TAG}}
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; CHECK: DW_AT_object_pointer
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; Ensure we omit DW_AT_object_pointer on inlined subroutines.
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; CHECK: DW_TAG_inlined_subroutine
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; CHECK-NEXT: DW_AT_abstract_origin {{.*}} {[[ABSTRACT_ORIGIN]]} "_ZN3foo4funcEi"
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; CHECK-NOT: NULL
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; CHECK-NOT: DW_AT_object_pointer
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; CHECK: DW_TAG_formal_parameter
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; CHECK-NOT: DW_AT_artificial
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; CHECK: DW_TAG
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%struct.foo = type { i8 }
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@i = global i32 0, align 4
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; Function Attrs: uwtable
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define i32 @main() #0 {
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entry:
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%this.addr.i = alloca %struct.foo*, align 8
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%x.addr.i = alloca i32, align 4
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%retval = alloca i32, align 4
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%tmp = alloca %struct.foo, align 1
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store i32 0, i32* %retval
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%0 = load i32, i32* @i, align 4, !dbg !23
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store %struct.foo* %tmp, %struct.foo** %this.addr.i, align 8
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call void @llvm.dbg.declare(metadata %struct.foo** %this.addr.i, metadata !24, metadata !MDExpression()), !dbg !26
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store i32 %0, i32* %x.addr.i, align 4
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call void @llvm.dbg.declare(metadata i32* %x.addr.i, metadata !27, metadata !MDExpression()), !dbg !28
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%this1.i = load %struct.foo*, %struct.foo** %this.addr.i
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%1 = load i32, i32* %x.addr.i, align 4, !dbg !28
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%add.i = add nsw i32 %1, 2, !dbg !28
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ret i32 %add.i, !dbg !23
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!20, !21}
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!llvm.ident = !{!22}
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!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !12, globals: !18, imports: !2)
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!1 = !MDFile(filename: "inline.cpp", directory: "/tmp/dbginfo")
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!2 = !{}
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!3 = !{!4}
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!4 = !MDCompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS3foo")
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!5 = !{!6}
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!6 = !MDSubprogram(name: "func", linkageName: "_ZN3foo4funcEi", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !"_ZTS3foo", type: !7)
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!7 = !MDSubroutineType(types: !8)
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!8 = !{!9, !10, !9}
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!9 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS3foo")
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!12 = !{!13, !17}
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!13 = !MDSubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !14, type: !15, function: i32 ()* @main, variables: !2)
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!14 = !MDFile(filename: "inline.cpp", directory: "/tmp/dbginfo")
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!15 = !MDSubroutineType(types: !16)
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!16 = !{!9}
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!17 = !MDSubprogram(name: "func", linkageName: "_ZN3foo4funcEi", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !"_ZTS3foo", type: !7, declaration: !6, variables: !2)
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!18 = !{!19}
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!19 = !MDGlobalVariable(name: "i", line: 5, isLocal: false, isDefinition: true, scope: null, file: !14, type: !9, variable: i32* @i)
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!20 = !{i32 2, !"Dwarf Version", i32 4}
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!21 = !{i32 1, !"Debug Info Version", i32 3}
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!22 = !{!"clang version 3.5.0 "}
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!23 = !MDLocation(line: 8, scope: !13)
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!24 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !17, type: !25)
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!25 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !"_ZTS3foo")
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!26 = !MDLocation(line: 0, scope: !17, inlinedAt: !23)
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!27 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 2, arg: 2, scope: !17, file: !14, type: !9)
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!28 = !MDLocation(line: 2, scope: !17, inlinedAt: !23)
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