re PR rtl-optimization/64688 (internal compiler error: Max. number of generated reload insns per insn is achieved (90))

	PR target/64688
	PR target/64477
	* config/i386/sse.md (vec_set<mode>_0): Use (Yi/r/C) constraints
	for alternative 3.

testsuite/ChangeLog:

	PR target/64688
	* g++.dg/pr64688.C: New test.

From-SVN: r220000