[Bug rtl-optimization/39588] [4.3/4.4/4.5 Regression] internal compiler error: in trunc_int_for_mode, at explow.c:55

[ebotcazou at gcc dot gnu dot org]

------- Comment #4 from ebotcazou at gcc dot gnu dot org  2009-04-01 20:46 
-------
Subject: Bug 39588

Author: ebotcazou
Date: Wed Apr  1 20:46:30 2009
New Revision: 145430

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=145430
Log:
        PR rtl-optimization/39588
        * combine.c (merge_outer_ops): Do not set the constant when this
        is not necessary.
        (simplify_shift_const_1): Do not modify it either in this case.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/20090401-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39588