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4a5feedcaa
This commit moves `MDLocation`, finishing off PR21433. There's an
accompanying clang commit for frontend testcases. I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.
This changes the schema for `DebugLoc` and `DILocation` from:
!{i32 3, i32 7, !7, !8}
to:
!MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)
Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.
llvm-svn: 226048
85 lines
3.6 KiB
LLVM
85 lines
3.6 KiB
LLVM
; REQUIRES: object-emission
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; RUN: %llc_dwarf < %s -filetype=obj | llvm-dwarfdump -debug-dump=line - | FileCheck %s
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; RUN: %llc_dwarf < %s -filetype=asm | FileCheck --check-prefix=ASM %s
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; If multiple line tables are emitted, one per CU, those line tables can
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; unambiguously rely on the comp_dir of their owning CU and use directory '0'
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; to refer to it.
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; CHECK: .debug_line contents:
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; CHECK-NEXT: Line table prologue:
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; CHECK-NOT: include_directories
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; CHECK: file_names[ 1] 0 {{.*}} a.cpp
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; CHECK-NOT: file_names
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; CHECK: Line table prologue:
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; CHECK-NOT: include_directories
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; CHECK: file_names[ 1] 0 {{.*}} b.cpp
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; CHECK-NOT: file_names
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; However, if a single line table is emitted and shared between CUs, the
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; comp_dir is ambiguous and relying on it would lead to different path
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; interpretations depending on which CU lead to the table - so ensure that
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; full paths are always emitted in this case, never comp_dir relative.
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; ASM: .file 1 "/tmp/dbginfo/a{{[/\\]+}}a.cpp"
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; ASM: .file 2 "/tmp/dbginfo/b{{[/\\]+}}b.cpp"
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; Generated from the following source compiled to bitcode from within their
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; respective directories (with debug info) and linked together with llvm-link
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; a/a.cpp
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; void func() {
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; }
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; b/b.cpp
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; void func();
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; int main() {
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; func();
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; }
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; Function Attrs: nounwind uwtable
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define void @_Z4funcv() #0 {
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entry:
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ret void, !dbg !19
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}
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; Function Attrs: uwtable
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define i32 @main() #1 {
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entry:
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call void @_Z4funcv(), !dbg !20
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ret i32 0, !dbg !21
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}
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attributes #0 = { 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" }
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attributes #1 = { 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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!llvm.dbg.cu = !{!0, !8}
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!llvm.module.flags = !{!16, !17}
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!llvm.ident = !{!18, !18}
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!0 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ]
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!1 = !{!"a.cpp", !"/tmp/dbginfo/a"}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00func\00func\00_Z4funcv\001\000\001\000\006\00256\000\001", !1, !5, !6, null, void ()* @_Z4funcv, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [func]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/a/a.cpp]
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!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{null}
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!8 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !9, !2, !2, !10, !2, !2} ; [ DW_TAG_compile_unit ]
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!9 = !{!"b.cpp", !"/tmp/dbginfo/b"}
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!10 = !{!11}
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!11 = !{!"0x2e\00main\00main\00\002\000\001\000\006\00256\000\002", !9, !12, !13, null, i32 ()* @main, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [main]
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!12 = !{!"0x29", !9} ; [ DW_TAG_file_type ] [/tmp/dbginfo/b/b.cpp]
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!13 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !14, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!14 = !{!15}
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!15 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!16 = !{i32 2, !"Dwarf Version", i32 4}
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!17 = !{i32 1, !"Debug Info Version", i32 2}
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!18 = !{!"clang version 3.5.0 "}
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!19 = !MDLocation(line: 2, scope: !4)
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!20 = !MDLocation(line: 3, scope: !11)
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!21 = !MDLocation(line: 4, scope: !11)
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