[Bug tree-optimization/14846] [tree-ssa] don't use a shift in A & CST_POWER_OF_2 == 0 until very late in tree-ssa optimizations

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-04-21 
00:39 -------
Subject: Bug 14846

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     [EMAIL PROTECTED]       2005-04-21 00:39:25

Modified files:
        gcc            : ChangeLog fold-const.c 

Log message:
        PR tree-optimization/14846
        * fold-const.c (fold_single_bit_test_into_sign_test): New,
        split out from ...
        (fold_single_bit_test): ... here.
        (fold_binary): Call fold_single_bit_test_into_sign_test
        instead of fold_single_bit_test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8381&r2=2.8382
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.566&r2=1.567



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14846