mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
bf2040f00c
Remove the fake `DW_TAG_auto_variable` and `DW_TAG_arg_variable` tags,
using `DW_TAG_variable` in their place Stop exposing the `tag:` field at
all in the assembly format for `DILocalVariable`.
Most of the testcase updates were generated by the following sed script:
find test/ -name "*.ll" -o -name "*.mir" |
xargs grep -l 'DILocalVariable' |
xargs sed -i '' \
-e 's/tag: DW_TAG_arg_variable, //' \
-e 's/tag: DW_TAG_auto_variable, //'
There were only a handful of tests in `test/Assembly` that I needed to
update by hand.
(Note: a follow-up could change `DILocalVariable::DILocalVariable()` to
set the tag to `DW_TAG_formal_parameter` instead of `DW_TAG_variable`
(as appropriate), instead of having that logic magically in the backend
in `DbgVariable`. I've added a FIXME to that effect.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243774 91177308-0d34-0410-b5e6-96231b3b80d8
96 lines
4.6 KiB
LLVM
96 lines
4.6 KiB
LLVM
; REQUIRES: object-emission
|
|
|
|
; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
|
|
|
|
; Testing that two distinct (distinct by writing them in separate files, while
|
|
; still fulfilling C++'s ODR by having identical token sequences) functions,
|
|
; linked under LTO, get plausible debug info (and don't crash).
|
|
|
|
; Built from source:
|
|
; $ clang++ a.cpp b.cpp -g -c -emit-llvm
|
|
; $ llvm-link a.bc b.bc -o ab.bc
|
|
|
|
; This change is intended to tickle a case where the subprogram MDNode
|
|
; associated with the llvm::Function will differ from the subprogram
|
|
; referenced by the DbgLocs in the function.
|
|
|
|
; $ sed -ie "s/!12, !0/!0, !12/" ab.ll
|
|
; $ cat a.cpp
|
|
; inline int func(int i) {
|
|
; return i * 2;
|
|
; }
|
|
; int (*x)(int) = &func;
|
|
; $ cat b.cpp
|
|
; inline int func(int i) {
|
|
; return i * 2;
|
|
; }
|
|
; int (*y)(int) = &func;
|
|
|
|
; CHECK: DW_TAG_compile_unit
|
|
; CHECK: DW_TAG_subprogram
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name {{.*}} "func"
|
|
; CHECK: DW_TAG_compile_unit
|
|
|
|
; FIXME: Maybe we should drop the subprogram here - since the function was
|
|
; emitted in one CU, due to linkonce_odr uniquing. We certainly don't emit the
|
|
; subprogram here if the source location for this definition is the same (see
|
|
; test/DebugInfo/cross-cu-linkonce.ll), though it's very easy to tickle that
|
|
; into failing even without duplicating the source as has been done in this
|
|
; case (two cpp files in different directories, including the same header that
|
|
; contains an inline function - clang will produce distinct subprogram metadata
|
|
; that won't deduplicate owing to the file location information containing the
|
|
; directory of the source file even though the file name is absolute, not
|
|
; relative)
|
|
|
|
; CHECK: DW_TAG_subprogram
|
|
|
|
@x = global i32 (i32)* @_Z4funci, align 8
|
|
@y = global i32 (i32)* @_Z4funci, align 8
|
|
|
|
; Function Attrs: inlinehint nounwind uwtable
|
|
define linkonce_odr i32 @_Z4funci(i32 %i) #0 {
|
|
%1 = alloca i32, align 4
|
|
store i32 %i, i32* %1, align 4
|
|
call void @llvm.dbg.declare(metadata i32* %1, metadata !22, metadata !DIExpression()), !dbg !23
|
|
%2 = load i32, i32* %1, align 4, !dbg !24
|
|
%3 = mul nsw i32 %2, 2, !dbg !24
|
|
ret i32 %3, !dbg !24
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
attributes #0 = { inlinehint nounwind 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" }
|
|
attributes #1 = { nounwind readnone }
|
|
|
|
!llvm.dbg.cu = !{!12, !0}
|
|
!llvm.module.flags = !{!19, !20}
|
|
!llvm.ident = !{!21, !21}
|
|
|
|
!0 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !9, imports: !2)
|
|
!1 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo")
|
|
!2 = !{}
|
|
!3 = !{!4}
|
|
!4 = !DISubprogram(name: "func", linkageName: "_Z4funci", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32)* @_Z4funci, variables: !2)
|
|
!5 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo")
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{!8, !8}
|
|
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!9 = !{!10}
|
|
!10 = !DIGlobalVariable(name: "x", line: 4, isLocal: false, isDefinition: true, scope: null, file: !5, type: !11, variable: i32 (i32)** @x)
|
|
!11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !6)
|
|
!12 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !13, enums: !2, retainedTypes: !2, subprograms: !14, globals: !17, imports: !2)
|
|
!13 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo")
|
|
!14 = !{!15}
|
|
!15 = !DISubprogram(name: "func", linkageName: "_Z4funci", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !13, scope: !16, type: !6, function: i32 (i32)* @_Z4funci, variables: !2)
|
|
!16 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo")
|
|
!17 = !{!18}
|
|
!18 = !DIGlobalVariable(name: "y", line: 4, isLocal: false, isDefinition: true, scope: null, file: !16, type: !11, variable: i32 (i32)** @y)
|
|
!19 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!20 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!21 = !{!"clang version 3.5.0 "}
|
|
!22 = !DILocalVariable(name: "i", line: 1, arg: 1, scope: !4, file: !5, type: !8)
|
|
!23 = !DILocation(line: 1, scope: !4)
|
|
!24 = !DILocation(line: 2, scope: !4)
|