phiopt: Remove minmax_replacement [PR101024]

phiopt: Remove minmax_replacement [PR101024]

Now all of the optimizations are done in match from
minmax_replacement. We can now remove minmax_replacement. :)
This keeps around the special case for fp `a CMP b ? a : b` that was
added with r14-2699-g9f8f37f5490076 (PR 88540) and moves it to
match_simplify_replacement.

Bootsrapped and tested on x86_64-linux-gnu.

Note bool-12.c needed to be updated since phiopt1 rejecting the
BIT_AND/BIT_IOR with a cast and not getting MIN/MAX any more.

gcc/ChangeLog:

	PR tree-optimization/101024
	* tree-ssa-phiopt.cc (match_simplify_replacement): Special
	case fp `a CMP b ? a : b` when not creating a min/max.
	(strip_bit_not): Remove.
	(invert_minmax_code): Remove.
	(minmax_replacement): Remove.
	(pass_phiopt::execute): Update pass comment.
	Don't call minmax_replacement.

gcc/testsuite/ChangeLog:

	* gcc.dg/tree-ssa/bool-12.c: Update based on when BIT_AND/BIT_IOR
	is created and no longer MIN/MAX.

Signed-off-by: Andrew Pinski <andrew.pinski@oss.qualcomm.com>