[Bug preprocessor/53525] Performance regression due to enabling track-macro-expansion

[jimis at gmx dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53525

--- Comment #3 from jimis <jimis at gmx dot net> 2012-05-30 04:52:20 UTC ---
Another simple one that my eye caught but does not effect performance.
Generally I don't get many things in macro.c, but am I correct to assume that
the following stands?


=== modified file 'libcpp/macro.c'
--- libcpp/macro.c      2012-05-02 16:55:19 +0000
+++ libcpp/macro.c      2012-05-27 06:55:37 +0000
@@ -1897,10 +1897,9 @@ tokens_buff_new (cpp_reader *pfile, size
                 source_location **virt_locs)
 {
   size_t tokens_size = len * sizeof (cpp_token *);
-  size_t locs_size = len * sizeof (source_location);

   if (virt_locs != NULL)
-    *virt_locs = XNEWVEC (source_location, locs_size);
+    *virt_locs = XNEWVEC (source_location, len);
   return _cpp_get_buff (pfile, tokens_size);
 }