rs6000-string.c (select_block_compare_mode): Check…

rs6000-string.c (select_block_compare_mode): Check TARGET_EFFICIENT_OVERLAPPING_UNALIGNED here instead of in caller.

2018-06-19  Aaron Sawdey  <acsawdey@linux.ibm.com>

	* config/rs6000/rs6000-string.c (select_block_compare_mode): Check
	TARGET_EFFICIENT_OVERLAPPING_UNALIGNED here instead of in caller.
	(do_and3, do_and3_mask, do_compb3, do_rotl3): New functions.
	(expand_block_compare): Change select_block_compare_mode call.
	(expand_strncmp_align_check): Use new functions, fix comment.
	(emit_final_str_compare_gpr): New function.
	(expand_strn_compare): Refactor and clean up code.
	* config/rs6000/vsx.md (vsx_mov<mode>_64bit): Remove *.

From-SVN: r261769

gcc/ChangeLog

+2018-06-19  Aaron Sawdey  <acsawdey@linux.ibm.com>
+
+	* config/rs6000/rs6000-string.c (select_block_compare_mode): Check
+	TARGET_EFFICIENT_OVERLAPPING_UNALIGNED here instead of in caller.
+	(do_and3, do_and3_mask, do_compb3, do_rotl3): New functions.
+	(expand_block_compare): Change select_block_compare_mode call.
+	(expand_strncmp_align_check): Use new functions, fix comment.
+	(emit_final_str_compare_gpr): New function.
+	(expand_strn_compare): Refactor and clean up code.
+	* config/rs6000/vsx.md (vsx_mov<mode>_64bit): Remove *.
+
 2018-06-19  Tony Reix  <tony.reix@atos.com>
 	    Damien Bergamini  <damien.bergamini@atos.com>
 	    David Edelsohn  <dje.gcc@gmail.com>

gcc/config/rs6000/vsx.md

@@ -1194,7 +1194,7 @@
 ;;              VSX store  VSX load   VSX move  VSX->GPR   GPR->VSX    LQ (GPR)
 ;;              STQ (GPR)  GPR load   GPR store GPR move   XXSPLTIB    VSPLTISW
 ;;              VSX 0/-1   GPR 0/-1   VMX const GPR const  LVX (VMX)   STVX (VMX)
-(define_insn "*vsx_mov<mode>_64bit"
+(define_insn "vsx_mov<mode>_64bit"
   [(set (match_operand:VSX_M 0 "nonimmediate_operand"
                "=ZwO,      <VSa>,     <VSa>,     r,         we,        ?wQ,
                 ?&r,       ??r,       ??Y,       <??r>,     wo,        v,