Fix PR110726: a | (a == b) can sometimes produce wrong code

Fix PR110726: a | (a == b) can sometimes produce wrong code

So I had missed/forgot that EQ_EXPR could have an non boolean
type for generic when I implemented r14-2556-g0407ae8a7732d9.
This patch adds check for one bit precision intergal type
which fixes the problem.

OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.

	PR tree-optimization/110726

gcc/ChangeLog:

	* match.pd ((a|b)&(a==b),a|(a==b),(a&b)|(a==b)):
	Add checks to make sure the type was one bit precision
	intergal type.

gcc/testsuite/ChangeLog:

	* gcc.c-torture/execute/bitops-1.c: New test.