S/390: arch13: Support 32 bit fp-int scalar converts

S/390: arch13: Support 32 bit fp-int scalar converts

gcc/ChangeLog:

2019-04-02  Andreas Krebbel  <krebbel@linux.ibm.com>

	* config/s390/s390.md (VX_CONV_BFP, VX_CONV_INT): New mode
	iterators.
	(SFSI): New mode attribute.
	("*fixuns_truncdfdi2_vx", "*fix_truncdfdi2_bfp_z13")
	("*floatunsdidf2_z13", ): Add support for 32 bit conversions and
	rename to ...
	("*fixuns_trunc<VX_CONV_BFP:mode><VX_CONV_INT:mode>2_z13")
	("*fix_trunc<VX_CONV_BFP:mode><VX_CONV_INT:mode>2_bfp_z13")
	("*floatuns<VX_CONV_INT:mode><VX_CONV_BFP:mode>2_z13"): ... these.
	("floatsi<mode>2"): Add wcefb instruction.

From-SVN: r270082