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99f12691dd
In the old (well, current) schema, there are two types of file
references: untagged and tagged (the latter references the former).
!0 = !{!"filename", !"/directory"}
!1 = !{!"0x29", !1} ; DW_TAG_file_type [filename] [/directory]
The interface to `DIBuilder` universally takes the tagged version,
described by `DIFile`. However, most `file:` references actually use
the untagged version directly.
In the new hierarchy, I'm merging this into a single node: `MDFile`.
Originally I'd planned to keep the old schema unchanged until after I
moved the new hierarchy into place.
However, it turns out to be trivial to make `MDFile` match both nodes at
the same time.
- Anyone referencing !1 does so through `DIFile`, whose implementation
I need to gut anyway (as I do the rest of the `DIDescriptor`s).
- Anyone referencing !0 just references an `MDNode`, and expects a
node with two `MDString` operands.
This commit achieves that, and updates all the testcases for the parts
of the new hierarchy that used the two-node schema (I've replaced the
untagged nodes with `distinct !{}` to make the diff clear (otherwise the
metadata all gets renumbered); it might be worthwhile to come back and
delete those nodes and renumber the world, not sure).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230057 91177308-0d34-0410-b5e6-96231b3b80d8
26 lines
1.0 KiB
LLVM
26 lines
1.0 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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; CHECK: !named = !{!0, !1, !2, !3, !4, !4, !5, !6, !7, !7}
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!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9}
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!0 = distinct !{}
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!1 = distinct !{}
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!2 = !MDFile(filename: "path/to/file", directory: "/path/to/dir")
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; CHECK: !3 = !MDLexicalBlock(scope: !0, file: !2, line: 7, column: 35)
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!3 = !MDLexicalBlock(scope: !0, file: !2, line: 7, column: 35)
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; CHECK: !4 = !MDLexicalBlock(scope: !0)
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!4 = !MDLexicalBlock(scope: !0)
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!5 = !MDLexicalBlock(scope: !0, file: null, line: 0, column: 0)
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; CHECK: !5 = !MDLexicalBlockFile(scope: !3, file: !2, discriminator: 0)
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; CHECK: !6 = !MDLexicalBlockFile(scope: !3, file: !2, discriminator: 1)
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!6 = !MDLexicalBlockFile(scope: !3, file: !2, discriminator: 0)
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!7 = !MDLexicalBlockFile(scope: !3, file: !2, discriminator: 1)
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; CHECK: !7 = !MDLexicalBlockFile(scope: !3, discriminator: 7)
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!8 = !MDLexicalBlockFile(scope: !3, discriminator: 7)
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!9 = !MDLexicalBlockFile(scope: !3, file: null, discriminator: 7)
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