2012-08-23 Julian Brown <julian@codesourcery.com>

2012-08-23  Julian Brown  <julian@codesourcery.com>
	    Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/mips/mips.md
	(UNSPEC_CASESI_DISPATCH): New.
	(MIPS16_T_REGNUM): New constant.
	(tablejump): Don't use for MIPS16_SHORT_JUMP_TABLES.
	(casesi): New.
	(casesi_internal_mips16_<mode>): New.
	* config/mips/mips.c (mips16_split_long_branches): Adjust test
	to ignore casesi jump tables.
	* config/mips/mips.h (TARGET_MIPS16_SHORT_JUMP_TABLES): Update
	comment.
	(CASE_VECTOR_MODE): Use SImode unconditionally.
	(CASE_VECTOR_SHORTEN_MODE): Define.
	(ASM_OUTPUT_ADDR_DIFF_ELT): Output word-sized addr_diff_elts
	when necessary for MIPS16_SHORT_JUMP_TABLES.

	gcc/testsuite/
	* gcc.target/mips/code-readable-1.c: Add -O to options.

Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>
From-SVN: r190625