GitLab

	* config/arm/arm.md (UNSPEC_RBIT): New constant.
	(rbitsi2): New insn.
	(ctzsi2): New expand.
	* config/arm/arm.h (CTZ_DEFINED_VALUE_AT_ZERO): New macro.

	testsuite/
	* gcc.target/arm/ctz.c: New test case.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@151402 138bc75d-0d04-0410-961f-82ee72b054a4