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Add a new wrapper node for a DILexicalBlock that encapsulates it and a

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file. Since it should only be used when necessary propagate it through
the backend code generation and tweak testcases accordingly.

This helps with code like in clang's test/CodeGen/debug-info-line.c where
we have multiple #line directives within a single lexical block and want
to generate only a single block that contains each file change.

Part of rdar://10246360

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141729 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2011-10-11 22:59:11 +00:00
parent 5ba7b501fd
commit 6618a241f7
10 changed files with 115 additions and 10 deletions
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9
include/llvm/Analysis/DIBuilder.h
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@@ -37,6 +37,7 @@ namespace llvm {
class DINameSpace;
class DIVariable;
class DISubrange;
class DILexicalBlockFile;
class DILexicalBlock;
class DISubprogram;
class DITemplateTypeParameter;
@@ -463,6 +464,14 @@ namespace llvm {
DIFile File, unsigned LineNo);
/// createLexicalBlockFile - This creates a descriptor for a lexical
/// block with a new file attached. This merely extends the existing
/// lexical block as it crosses a file.
/// @param Scope Lexical block.
/// @param File Source file.
DILexicalBlockFile createLexicalBlockFile(DIDescriptor Scope,
DIFile File);
/// createLexicalBlock - This creates a descriptor for a lexical block
/// with the specified parent context.
/// @param Scope Parent lexical scope.