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Subject: [Bug target/56028] Splitting a 64-bit volatile store
Date: Sun, 27 Jan 2013 14:28:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56028

--- Comment #14 from uros at gcc dot gnu.org 2013-01-27 14:28:23 UTC ---
Author: uros
Date: Sun Jan 27 14:28:19 2013
New Revision: 195495

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195495
Log:
    Backport from mainline
    2013-01-22  Uros Bizjak  <ubizjak@gmail.com>

    PR target/56028
    * config/i386/i386.md (*movti_internal_rex64): Change (o,riF)
    alternative to (o,r).
    (*movdi_internal_rex64): Remove (!o,n) alternative.
    (DImode immediate->memory splitter): Remove.
    (DImode immediate->memory peephole2): Remove.
    (movtf): Enable for TARGET_64BIT || TARGET_SSE.
    (*movtf_internal_rex64): Rename from *movtf_internal. Change (!o,F*r)
    alternative to (!o,*r).
    (*movtf_internal_sse): New pattern.
    (*movxf_internal_rex64): New pattern.
    (*movxf_internal): Disable for TARGET_64BIT.
    (*movdf_internal_rex64): Remove (!o,F) alternative.

    2013-01-23  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (*movdf_internal_rex64): Disparage alternatives
    involving stack registers slightly.

    2013-01-24  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/constraints.md (Yf): New constraint.
    * config/i386/i386.md (*movdf_internal_rex64): Use Yf*f instead
    of f constraint to conditionaly disable x87 register preferences.
    (*movdf_internal): Ditto.
    (*movsf_internal): Ditto.

    2012-01-24  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (*movti_internal_rex64): Add (o,e) alternative.
    (*movtf_internal_rex64): Add (!o,C) alternative
    (*movxf_internal_rex64): Ditto.
    (*movdf_internal_rex64): Add (?r,C) and (?m,C) alternatives.

testsuite/ChangeLog:

    Backport from mainline
    2013-01-22  Uros Bizjak  <ubizjak@gmail.com>

    PR target/56028
    * gcc.target/i386/pr56028.c: New test.

    2013-01-24  Uros Bizjak  <ubizjak@gmail.com>

    * gcc.target/i386/movsd.c: New test.


Added:
    branches/gcc-4_7-branch/gcc/testsuite/gcc.target/i386/movsd.c
    branches/gcc-4_7-branch/gcc/testsuite/gcc.target/i386/pr56028.c
Modified:
    branches/gcc-4_7-branch/gcc/ChangeLog
    branches/gcc-4_7-branch/gcc/config/i386/constraints.md
    branches/gcc-4_7-branch/gcc/config/i386/i386.md
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog