[cfe-commits] r93981 - /cfe/trunk/lib/Frontend/InitPreprocessor.cpp

[Daniel Dunbar]

Author: ddunbar
Date: Wed Jan 20 00:09:53 2010
New Revision: 93981

URL: http://llvm.org/viewvc/llvm-project?rev=93981&view=rev
Log:
Fix an invalid Twine use spotty by abbeyj, it isn't safe to use Twine
temporaries (this is one reason I'm nervous about propagating their use beyond
particularly performance critical places).

Modified:
    cfe/trunk/lib/Frontend/InitPreprocessor.cpp

Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=93981&r1=93980&r2=93981&view=diff

==============================================================================
--- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original)
+++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Wed Jan 20 00:09:53 2010
@@ -137,7 +137,10 @@
                "1.79769313486231580793728971405301e+308L",
                "1.18973149535723176508575932662800702e+4932L");
 
-  llvm::Twine DefPrefix = "__" + Prefix + "_";
+  llvm::SmallString<32> DefPrefix;
+  DefPrefix = "__";
+  DefPrefix += Prefix;
+  DefPrefix += "_";
 
   Builder.defineMacro(DefPrefix + "DENORM_MIN__", DenormMin);
   Builder.defineMacro(DefPrefix + "HAS_DENORM__");