[Bug tree-optimization/48189] [4.6/4.7/4.8 Regression] ICE: SIGFPE (division by zero) in in predict_loops () at predict.c:991 with --param max-predicted-iterations=0

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48189



--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-01-09 
09:00:32 UTC ---

Author: jakub

Date: Wed Jan  9 09:00:22 2013

New Revision: 195046



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195046

Log:

    PR tree-optimization/48189

    * predict.c (predict_loops): If max is 0, don't call compare_tree_int.

    If nitercst is 0, don't predict the exit edge.



    * gcc.dg/pr48189.c: New test.



Added:

    trunk/gcc/testsuite/gcc.dg/pr48189.c

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/predict.c

    trunk/gcc/testsuite/ChangeLog