i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512): New insn pattern.

i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512): New insn pattern.

	* config/i386/i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512):
	New insn pattern.
	(floatunssi<mode>2): Also enable for AVX512F and TARGET_SSE_MATH.
	Rewrite expander pattern.  Emit gen_floatunssi<mode>2_i387_with_xmm
	for non-SSE modes.
	(floatunsdisf2): Rewrite expander pattern.  Hanlde TARGET_AVX512F.
	(floatunsdidf2): Ditto.

	* config/i386/i386.md (fixuns_trunc<mode>di2): New insn pattern.
	(fixuns_trunc<mode>si2_avx512f): Ditto.
	(*fixuns_trunc<mode>si2_avx512f_zext): Ditto.
	(fixuns_trunc<mode>si2): Also enable for AVX512F and TARGET_SSE_MATH.
	Emit fixuns_trunc<mode>si2_avx512f for AVX512F targets.

testsuite/ChangeLog:

	* gcc.target/i386/cvt-2.c: New test.

	* gcc.target/i386/cvt-3.c: New test.

From-SVN: r260614