[Bug tree-optimization/49419] [4.6/4.7 regression] gcc -O2 miscompiles gp2c

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49419

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-06-16 
07:54:46 UTC ---
Author: jakub
Date: Thu Jun 16 07:54:43 2011
New Revision: 175095

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175095
Log:
    PR tree-optimization/49419
    * tree-vrp.c (execute_vrp): Call init_range_assertions
    before estimate_numbers_of_iterations, call
    free_number_of_iterations_estimates before calling
    remove_range_assertions.

    * gcc.c-torture/execute/pr49419.c: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.c-torture/execute/pr49419.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_6-branch/gcc/tree-vrp.c