[Bug middle-end/17886] variable rotate and long long rotate should be better optimized

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-09-29 
03:31 -------
Subject: Bug 17886

CVSROOT:        /cvs/gcc
Module name:    gcc
Changes by:     [EMAIL PROTECTED]       2005-09-29 03:31:27

Modified files:
        gcc            : ChangeLog expmed.c optabs.c 
        gcc/config/i386: i386.md 

Log message:
        PR 17886
        * expmed.c (expand_shift): Move logic to reverse rotation
        direction when  rotating by constants ...
        * optabs.c (expand_binop): ... here.
        * config/i386/i386.md (rotrdi3): Handle 32-bit mode.
        (ix86_rotrdi3): New pattern.
        (rotldi3): Handle 32-bit mode.
        (ix86_rotldi3): New pattern.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.10044&r2=2.10045
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expmed.c.diff?cvsroot=gcc&r1=1.236&r2=1.237
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/optabs.c.diff?cvsroot=gcc&r1=1.294&r2=1.295
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&r1=1.656&r2=1.657



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17886