[Bug target/30970] Register zeroing by xor N,N should be moved out of loop

[uros at gcc dot gnu dot org]

------- Comment #4 from uros at gcc dot gnu dot org  2007-02-27 21:27 -------
Subject: Bug 30970

Author: uros
Date: Tue Feb 27 21:27:27 2007
New Revision: 122387

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122387
Log:
        PR target/30970
        * config/i386/sse.md (*mov<mode>_internal, *movv4sf_internal,
        *movv2df_internal): Enable pattern only for valid operand
        combinations.
        * config/i386/i386.c (ix86_modes_tieable_p): For SSE registers,
        tie only 128bit modes. For MMX registers, tie only 64bit modes.

testsuite/ChangeLog:

        PR target/30970
        * gcc.target/i386/gfortran.dg/pr30970.c: New test. 


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr30970.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30970