re PR target/40957 (standard_sse_constant_opcode crash on x86 64)

re PR target/40957 (standard_sse_constant_opcode crash on x86 64)

	PR target/40957
	* config/i386/i386.c (standard_sse_mode_p): Remove.
	(standard_sse_constant_p): Return 2 for integer mode
	vector_all_ones_operand when SSE2 is enabled.
	(standard_sse_constant_opcode)<case 2>: Always return [v]pcmpeqd.
	(ix86_expand_vector_move): Do not check for negative values from
	standard_sse_constant_p.

testsuite/ChangeLog:

	PR target/40957
	* gcc.target/i386/pr40957: New test.

Co-Authored-By: H.J. Lu <hongjiu.lu@intel.com>
From-SVN: r150520