------- Comment #7 from ebotcazou at gcc dot gnu dot org  2006-09-10 21:27 
-------
Subject: Bug 28636

Author: ebotcazou
Date: Sun Sep 10 21:27:36 2006
New Revision: 116827

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116827
Log:
        PR rtl-optimization/28636
        * combine.c (force_to_mode): Test for side-effects before
        substituting by zero.
        (simplify_shift_const): Likewise for zero or other constants.


Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/20060910-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28636

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