Author: aaronballman
Date: Thu Nov 20 15:34:56 2014
New Revision: 222456
URL: http://llvm.org/viewvc/llvm-project?rev=222456&view=rev
Log:
The Syntax enumeration requires at least three bits to store all of its values.
Increase the number of bits for SyntaxUsed. Decrease the number of expression
arguments allowed by a single bit so that the bit fields continue to add up to
32-bits evenly.
There is no test for this fix because I could find no reasonable way to trigger
a visible failure from it.
Thanks to Doug Gregor for spotting this!
Modified:
cfe/trunk/include/clang/Sema/AttributeList.h
Modified: cfe/trunk/include/clang/Sema/AttributeList.h
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Sema/AttributeList.h?rev=222456&r1=222455&r2=222456&view=diff
==============================================================================
--- cfe/trunk/include/clang/Sema/AttributeList.h (original)
+++ cfe/trunk/include/clang/Sema/AttributeList.h Thu Nov 20 15:34:56 2014
@@ -94,10 +94,10 @@ private:
/// The number of expression arguments this attribute has.
/// The expressions themselves are stored after the object.
- unsigned NumArgs : 16;
+ unsigned NumArgs : 15;
/// Corresponds to the Syntax enum.
- unsigned SyntaxUsed : 2;
+ unsigned SyntaxUsed : 3;
/// True if already diagnosed as invalid.
mutable unsigned Invalid : 1;
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