[Bug target/22076] Strange code for MMX register moves

["uros at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #9 from uros at gcc dot gnu dot org  2008-02-23 15:24 -------
Subject: Bug 22076

Author: uros
Date: Sat Feb 23 15:24:02 2008
New Revision: 132572

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132572
Log:
        PR target/22076
        PR target/34256

        * config/i386/mmx.md (*mov<mode>_internal_rex64): Use "!y" to
        prevent reload from using MMX registers.
        (*mov<mode>_internal): Ditto.
        (*movv2sf_internal_rex64): Ditto.
        (*movv2sf_internal): Ditto.

testsuite/ChangeLog:

        PR target/22076
        PR target/34256
        * gcc.target/i386/pr22076.c: New test.
        * gcc.target/i386/pr34256.c: New test.
        * gcc.target/i386/vecinit-5.c: New test.
        * gcc.target/i386/vecinit-6.c: New test.
        * gcc.target/i386/vecinit-[1-4].c: Check that no MMX register is used.

        * g++.dg/compat/struct-layout-1.h: Do not include <mmintrin.h> and
        <xmmintrin.h>, define __m64 and __m128 directly.
        * g++.dg/compat/struct-layout-1_generate.c: Add -mno-mmx for x86.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr22076.c
    trunk/gcc/testsuite/gcc.target/i386/pr34256.c
    trunk/gcc/testsuite/gcc.target/i386/vecinit-5.c
    trunk/gcc/testsuite/gcc.target/i386/vecinit-6.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/mmx.md
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/compat/struct-layout-1.h
    trunk/gcc/testsuite/g++.dg/compat/struct-layout-1_generate.c
    trunk/gcc/testsuite/gcc.target/i386/vecinit-1.c
    trunk/gcc/testsuite/gcc.target/i386/vecinit-2.c
    trunk/gcc/testsuite/gcc.target/i386/vecinit-3.c
    trunk/gcc/testsuite/gcc.target/i386/vecinit-4.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22076