PR rtl-optimization/52714
	* combine.c (try_combine): Allow combining two insns into two
	new insns if at least one of those is a noop.

gcc/testsuite/
	* gcc.target/m68k/pr52714.c: New testcase.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218302 138bc75d-0d04-0410-961f-82ee72b054a4