* cfgexpand (n_stack_vars_conflict): New static variable.

[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog

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 2009-11-26  Bernd Schmidt  <bernd.schmidt@analog.com>
 
+       * cfgexpand (n_stack_vars_conflict): New static variable.
+       (triangular_index): Reduce likelyhood of overflow by performing
+       the division before the multiplication.
+       (resize_stack_vars_conflict): Call fatal_error if overflow
+       occurred in triangular_index.  Update n_stack_vars_conflict.
+
        PR rtl-opt/38582
        * regrename.c (struct du_chain): Remove member earlyclobber.
        (scan_rtx_reg): Don't set it.  Remove argument earlyclobber,