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[Bug rtl-optimization/23392] [4.1 Regression] foward-1.m fails with -funroll-loops -O3 -fgnu-runtime



------- Comment #14 from amodra at gcc dot gnu dot org  2005-11-16 00:22 -------
Subject: Bug 23392

Author: amodra
Date: Wed Nov 16 00:22:15 2005
New Revision: 107059

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=107059
Log:
        PR rtl-optimization/23392
        * regrename.c (enum scan_actions) Add mark_access.
        (scan_actions_name): Ditto.
        (scan_rtx_reg): Handle mark_access.
        (scan_rtx_address): Do nothing for mark_access.
        (build_def_use): Mark source registers in REG_FRAME_RELATED_EXPR
        and regs in REG_INC notes before closing chains for dead regs.
        Mark destination regs in REG_FRAME_RELATED_EXPR notes after
        opening chains for new writes.


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


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23392


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