[PATCH, i386]: Fix "unit" attributes for x87/MMX mode switching

[Uros Bizjak]

Hello!

This patch sets correct "unit" attribute for x87/MMX mode switching. For "multi"
type patterns, it specifies "i387" when appropriate.

BTW: It looks that mmx_pmovmskb has a cut-n-pasto in its "mode" and "type"
attributes.

Bootstrapped i686-pc-linux-gnu, regtested for c and c++. OK for mainline?

2005-06-15  Uros Bizjak  <uros@kss-loka.si>

	* config/i386/i386.md (*cmpfp_0_sf, *cmpfp_0_df, cmpfp_0_xf):
	Remove instruction patterns.
	(*cmpfp_0): New instruction pattern. Set "unit" attribute to "i387".
	(*cmpfp_sf, *cmpfp_df, *cmpfp_xf, *cmpfp_u, *_cmpfp_<mode>):
	Set "unit" attribute to "i387".
	(*pushsf, *pushsf_rex64, *pushdf_nointeger, *pushdf_integer)
	(*pushxf_nointeger, *pushxf_integer): Set "unit" attribute to "i387"
	for alternative 0.
	(*truncdfsf_mixed, *truncdfsf_i387, *truncxfsf2_mixed)
	(*truncxfsf2_i387, *truncxfdf2_mixed, *truncxfdf2_i387): Set "unit"
	attribute to "i387" when "type" attribute equals "multi".
	(*floathisf2_i387, *floatsisf2_mixed, *floatsisf2_i387)
	(*floatdisf2_mixed, *floatdisf2_i387, *floathidf2_i387)
	(*floatsidf2_mixed, *floatsidf2_i387, *floatdidf2_mixed)
	(*floatdidf2_i387, floathixf2, floatsixf2, floatdixf2): Set "unit"
	attribute to "i387" when "type" attribute equals "multi".

	* config/i386/mmx.md (*mov<mode>_internal_rex64)
	(*mov<mode>_internal, *movv2sf_internal_rex64, *movv2sf_internal):
	Set "unit" attribute to "mmx" when "type" attribute equals "ssecvt".
	(mmx_pmovmskb): Correct wrong "type" and "mode" attributes.

	* config/i386/mmx.md (sse_cvtps2pi, sse_cvttps2pi, sse_cvtpd2di)
	(sse_cvttpd2pi): Set "unit" attribute to "mmx".
	(sse2_cvtpi2pd): Split register constraints. Set "unit" attribute
	to "mmx" for "y" operand 1.

Uros.
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