[Bug middle-end/42202] [4.5 regression] Revision 154688 caused many gfortran failures

[bernds at gcc dot gnu dot org]

------- Comment #3 from bernds at gcc dot gnu dot org  2009-12-03 12:58 -------
Subject: Bug 42202

Author: bernds
Date: Thu Dec  3 12:58:30 2009
New Revision: 154944

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=154944
Log:
        PR middle-end/42202
        * regrename.c (live_in_chains): New variable.
        (verify_reg_tracked): New static function.
        (scan_rtx_reg): Update live_in_chains.
        (scan_rtx): Only promote sets in COND_EXEC to OP_INOUT if
        we're already tracking the reg.
        (build_def_use): Likewise.  Initialize live_in_chains.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/regrename.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42202