[Bug rtl-optimization/20070] If-conversion can't match equivalent code, and cross-jumping only works for literal matches

[amylaar at gcc dot gnu dot org]

------- Comment #22 from amylaar at gcc dot gnu dot org  2005-12-07 13:31 -------
Subject: Bug 20070

Author: amylaar
Date: Wed Dec  7 13:31:41 2005
New Revision: 108164

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108164
Log:
2005-12-07  J"orn Rennecke <joern.rennecke@st.com>

        Preparation for PR rtl-optimization/20070 / part1
        * basic-block.h (insns_match_p, flow_find_cross_jump): Declare.
        * cfgcleanup.c (condjump_equiv_p): New function, broken out of
        outgoing_edges_match.
        (outgoing_edges_match): Use condjump_equiv_p.
        (merge_memattrs, insns_match_p, flow_find_cross_jump): Move from here
        into..
        * struct-equiv.c: New file.
        (death_notes_match_p) New function, broken out of insns_match_p.
        * Makefile.in (OBJS-common): Add struct-equiv.o.
        (struct-equiv.o): New target.

Added:
    trunk/gcc/struct-equiv.c
      - copied, changed from r107723, trunk/gcc/cfgcleanup.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/basic-block.h
    trunk/gcc/cfgcleanup.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20070