[cfe-commits] r39815 - /cfe/trunk/Lex/Preprocessor.cpp

[Chris Lattner]

Author: lattner
Date: Fri Jul 13 12:10:38 2007
New Revision: 39815

URL: http://llvm.org/viewvc/llvm-project?rev=39815&view=rev
Log:
remove use of alloca.

Modified:
    cfe/trunk/Lex/Preprocessor.cpp

Modified: cfe/trunk/Lex/Preprocessor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/Lex/Preprocessor.cpp?rev=39815&r1=39814&r2=39815&view=diff

==============================================================================
--- cfe/trunk/Lex/Preprocessor.cpp (original)
+++ cfe/trunk/Lex/Preprocessor.cpp Fri Jul 13 12:10:38 2007
@@ -37,7 +37,6 @@
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/SmallVector.h"
 #include <iostream>
-#include <alloca.h>
 using namespace clang;
 
 //===----------------------------------------------------------------------===//
@@ -908,7 +907,9 @@
     II = getIdentifierInfo(BufPtr, BufPtr+Identifier.getLength());
   } else {
     // Cleaning needed, alloca a buffer, clean into it, then use the buffer.
-    const char *TmpBuf = (char*)alloca(Identifier.getLength());
+    llvm::SmallVector<char, 64> IdentifierBuffer;
+    IdentifierBuffer.resize(Identifier.getLength());
+    const char *TmpBuf = &IdentifierBuffer[0];
     unsigned Size = getSpelling(Identifier, TmpBuf);
     II = getIdentifierInfo(TmpBuf, TmpBuf+Size);
   }