Check mask type when doing cond_op related gimple simplification.

gcc/ChangeLog:

	PR middle-end/102080
	* match.pd: Check mask type when doing cond_op related gimple
	simplification.
	* tree.c (is_truth_type_for): New function.
	* tree.h (is_truth_type_for): New declaration.

gcc/testsuite/ChangeLog:

	PR middle-end/102080
	* gcc.target/i386/pr102080.c: New test.