[Bug rtl-optimization/27073] invalid gcse manipulation of REG_EQUIV notes

["carlos at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #5 from carlos at gcc dot gnu dot org  2006-11-24 16:33 -------
Subject: Bug 27073

Author: carlos
Date: Fri Nov 24 16:33:44 2006
New Revision: 119160

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=119160
Log:

2006-11-24  Carlos O'Donell  <carlos@codesourcery.com>

        Backport from mainline:
        gcc/
        2006-04-11  Richard Sandiford  <richard@codesourcery.com>
        PR rtl-optimization/27073
        * gcse.c (try_replace_reg): Revert last change.  Continue to search
        for both REG_EQUAL and REG_EQUIV notes, but only perform replacements
        on the former.

        gcc/
        2006-04-09  Richard Sandiford  <richard@codesourcery.com>
        PR rtl-optimization/27073
        * gcse.c (try_replace_reg): Just propagate into REG_EQUAL notes,
        not REG_EQUIVs.

        gcc/testsuite/
        2006-04-09  Richard Sandiford  <richard@codesourcery.com>
        PR rtl-optimization/27073
        * gcc.c-torture/execute/pr27073.c: New test.


Added:
    branches/csl/sourcerygxx-4_1/gcc/testsuite/gcc.c-torture/execute/pr27073.c
Modified:
    branches/csl/sourcerygxx-4_1/ChangeLog.csl
    branches/csl/sourcerygxx-4_1/gcc/gcse.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27073