Backport from mainline

	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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@195495 138bc75d-0d04-0410-961f-82ee72b054a4