[Bug target/36992] Very stange code for _mm_move_epi64

[uros at gcc dot gnu dot org]

------- Comment #16 from uros at gcc dot gnu dot org  2008-08-03 06:14 -------
Subject: Bug 36992

Author: uros
Date: Sun Aug  3 06:13:04 2008
New Revision: 138564

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138564
Log:
        PR target/36992
        * config/i386/sse.md (vec_concatv2di): Add Y2 constraint to
        alternative 0 of operand 1.
        (*vec_concatv2di_rex64_sse): Ditto.
        (*vec_concatv2di_rex64_sse4_1): Add x constraint to alternative 0
        of operand 1.
        (*sse2_storeq_rex64): Penalize allocation of "r" registers.
        * config/i386/mmx.md (*mov<mode>_internal_rex64): Penalize allocation
        of "Y2" registers to avoid SSE <-> MMX conversions for DImode moves.
        (*movv2sf_internal_rex64): Ditto.

testsuite/ChangeLog:

        PR target/36992
        * gcc.target/i386/pr36992-1.c: New test.
        * gcc.target/i386/pr36992-2.c: Ditto.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr36992-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr36992-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/mmx.md
    trunk/gcc/config/i386/sse.md
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36992