rs6000.opt (mlra): Replace with stub.

rs6000.opt (mlra): Replace with stub.

gcc/

	* config/rs6000/rs6000.opt (mlra): Replace with stub.
	* config/rs6000/rs6000-cpus.def (POWERPC_MASKS): Delete OPTION_MASK_LRA.
	* config/rs6000/rs6000.c (TARGET_LRA_P): Delete.
	(rs6000_debug_reg_global): Delete print of LRA status.
	(rs6000_option_override_internal): Delete dead LRA related code.
	(rs6000_lra_p): Delete function.
	* doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mlra.

gcc/testsuite/

	* g++.dg/pr69667.C: Remove option -mlra.
	* gcc.target/powerpc/dform-1.c: Likewise.
	* gcc.target/powerpc/dform-2.c: Likewise.
	* gcc.target/powerpc/dform-3.c: Likewise.
	* gcc.target/powerpc/p8vector-int128-1.c: Likewise.
	* gcc.target/powerpc/p9-vparity.c: Likewise.
	* gcc.target/powerpc/pr63491.c: Likewise.
	* gcc.target/powerpc/pr67808.c: Likewise.
	* gcc.target/powerpc/pr68805.c: Likewise.
	* gcc.target/powerpc/pr69461.c: Likewise.
	* gcc.target/powerpc/pr71680.c: Likewise.
	* gcc.target/powerpc/pr77289.c: Likewise.
	* gcc.target/powerpc/pr78458.c: Likewise.
	* gcc.target/powerpc/pr78543.c: Likewise.
	* g++.dg/pr71294.C: Remove option -mno-lra.
	* gcc.target/powerpc/pr71656-1.c: Likewise.
	* gcc.target/powerpc/pr71656-2.c: Likewise.
	* gcc.target/powerpc/pr71698.c: Likewise.

From-SVN: r250637