Author: bogner
Date: Wed Jul 8 13:32:26 2015
New Revision: 241705
URL: http://llvm.org/viewvc/llvm-project?rev=241705&view=rev
Log:
AST: Avoid reading an unitialized value
Desugar doesn't necessarily initialize ShouldAKA, but as of r241542 it
may read it. Fix the misuse of the API and initialize this before
passing it in.
Found by ubsan.
Modified:
cfe/trunk/lib/AST/ASTDiagnostic.cpp
Modified: cfe/trunk/lib/AST/ASTDiagnostic.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTDiagnostic.cpp?rev=241705&r1=241704&r2=241705&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ASTDiagnostic.cpp (original)
+++ cfe/trunk/lib/AST/ASTDiagnostic.cpp Wed Jul 8 13:32:26 2015
@@ -192,8 +192,8 @@ ConvertTypeToDiagnosticString(ASTContext
if (CompareCanTy == CanTy)
continue; // Same canonical types
std::string CompareS = CompareTy.getAsString(Context.getPrintingPolicy());
- bool aka;
- QualType CompareDesugar = Desugar(Context, CompareTy, aka);
+ bool ShouldAKA = false;
+ QualType CompareDesugar = Desugar(Context, CompareTy, ShouldAKA);
std::string CompareDesugarStr =
CompareDesugar.getAsString(Context.getPrintingPolicy());
if (CompareS != S && CompareDesugarStr != S)
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