[Bug rtl-optimization/42294] [4.5 Regression] ICE in code_motion_path_driver for 416.gamess

[abel at gcc dot gnu dot org]

------- Comment #8 from abel at gcc dot gnu dot org  2010-01-14 10:16 -------
Subject: Bug 42294

Author: abel
Date: Thu Jan 14 10:16:01 2010
New Revision: 155889

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155889
Log:
        PR rtl-optimization/42294
        * sel-sched.c (try_replace_dest_reg): When chosen register
        and original register is the same, do not bail out early, but
        still check all original insns for validity of replacing destination
        register.  Set EXPR_TARGET_AVAILABLE to 1 before leaving function
        in this case.


Added:
    trunk/gcc/testsuite/gcc.dg/pr42249.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/sel-sched.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42294