vsx.md (VSX_EXTRACT_FL): New iterator for all binary floating point types supported...

vsx.md (VSX_EXTRACT_FL): New iterator for all binary floating point types supported by the hardware...

[gcc]
2016-10-31  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/vsx.md (VSX_EXTRACT_FL): New iterator for all
	binary floating point types supported by the hardware except for
	double.
	(vsx_xvcvsxwdp_df): Provide scalar result alternative to the
	vector instruction for optimizing extracting a SImode from a
	V4SImode vector and converting it to floating point.
	(vsx_xvcvuxwdp_df): Likewise.
	(vsx_extract_si): On ISA 3.0, allow extract target and temporary
	registers to be any VSX register.  Move stores to the end of the
	constraints.
	(vsx_extract_si_<uns>float_df): New combiner pattern and splitter
	to optimize extracting a SImode from a V4SImode vector and
	converting it to a binary floating point type supported by the
	hardware.  Use the vector converts instead of extracting the
	element, sign extending it, and then converting it to double.
	Other floating point types  than double first convert to double,
	then the double is converted to that type.
	(vsx_extract_si_<uns>float_<mode>): Likewise.

[gcc/testsuite]
2016-10-31  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* gcc.target/powerpc/vsx-extract-4.c: New test.
	* gcc.target/powerpc/vsx-extract-5.c: Likewise.

From-SVN: r241731