re PR target/40811 (unsigned int to float isn't vectorized)

re PR target/40811 (unsigned int to float isn't vectorized)

	PR target/40811
	* config/i386/sse.md (sse2_cvtudq2ps): New expander.
	(enum ix86_builtins): Add IX86_BUILTIN_CVTUDQ2PS.
	(builtin_description): Add __builtin_ia32_cvtudq2ps.
	(ix86_vectorize_builtin_conversion): Handle IX86_BUILTIN_CVTUDQ2PS.

testsuite/ChangeLog:

	PR target/40811
	* lib/target-supports.exp (check_effective_target_vect_uintfloat_cvt):
	Add i?86 and x86_64 targets.
	* gcc.target/i386/vectorize7.c: New test.

	PR target/40809
	* gcc.target/i386/pr40809.c: New test.

From-SVN: r149861