[PATCH, i386]: Fix target/48860: bootstrap fails on x86_64-apple-darwin10; broken assembler edition.

[Uros Bizjak <ubizjak at gmail dot com>]

Hello!

Oh well... some broken assemblers got confused with "movq %reg, %xmm"
DImode move mnemonic. "movd" works correctly as well, so use this form
instead.

2011-05-04  Uros Bizjak  <ubizjak@gmail.com>

	PR target/48860
	* config/i386/i386.md (*movdi_internal_rex64) Use %vmovd
	for reg<->xmm moves.
	* config/i386/sse.md (*vec_concatv2di_rex64_sse4_1): Ditto.
	(vec_concatv2di_rex64_sse): Ditto.
	(*sse2_storeq_rex64): Do not emit %v prefix for mov{q} mnemonic.
	(*vec_extractv2di_1_rex64): Ditto.

	Revert:
	2011-05-02  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/mmx.md (*mov<mode>_internal_rex64): Use %vmovq for
	reg<->xmm moves.
	(*movv2sf_internal_rex64): Use %vmovq for reg<->xmm moves.

Tested on x86_64-pc-linux-gnu, committed to mainline SVN. I will audit
movq usage in other release branches as well.

Uros.

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