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Add DWARF discriminator support to DILexicalBlocks.

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This adds support for emitting discriminators from DILexicalBlocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202736 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Diego Novillo
2014-03-03 18:53:17 +00:00
parent 98b5aaeebb
commit 6f8c0c0613
7 changed files with 84 additions and 10 deletions
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docs/SourceLevelDebugging.rst
+5 -2
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@@ -319,6 +319,7 @@ Block descriptors
metadata,;; Reference to context descriptor
i32, ;; Line number
i32, ;; Column number
i32, ;; DWARF path discriminator value
i32 ;; Unique ID to identify blocks from a template function
}
@@ -724,7 +725,8 @@ Compiled to LLVM, this function would be represented like this:
!15 = metadata !{i32 786688, metadata !16, metadata !"Z", metadata !5, i32 5,
metadata !11, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [Z] \
[line 5]
!16 = metadata !{i32 786443, metadata !1, metadata !4, i32 4, i32 0, i32 0} \
!16 = metadata !{i32 786443, metadata !1, metadata !4, i32 4, i32 0, i32 0,
i32 0} \
; [ DW_TAG_lexical_block ] [/private/tmp/t.c]
!17 = metadata !{i32 5, i32 0, metadata !16, null}
!18 = metadata !{i32 6, i32 0, metadata !16, null}
@@ -776,7 +778,8 @@ scope information for the variable ``Z``.
.. code-block:: llvm
!16 = metadata !{i32 786443, metadata !1, metadata !4, i32 4, i32 0, i32 0}
!16 = metadata !{i32 786443, metadata !1, metadata !4, i32 4, i32 0, i32 0,
i32 0}
; [ DW_TAG_lexical_block ] [/private/tmp/t.c]
!17 = metadata !{i32 5, i32 0, metadata !16, null}