+2006-01-31 Nicolas Pitre <nico@cam.org>
+
+ * arm.md (smaxsi3): Make aware of smax_m1.
+ (smax_m1): New.
+
2006-01-31 Nathan Sidwell <nathan@codesourcery.com>
* gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
(clobber (reg:CC CC_REGNUM))])]
"TARGET_ARM"
"
- if (operands[2] == const0_rtx)
+ if (operands[2] == const0_rtx || operands[2] == constm1_rtx)
{
/* No need for a clobber of the condition code register here. */
emit_insn (gen_rtx_SET (VOIDmode, operands[0],
[(set_attr "predicable" "yes")]
)
+(define_insn "*smax_m1"
+ [(set (match_operand:SI 0 "s_register_operand" "=r")
+ (smax:SI (match_operand:SI 1 "s_register_operand" "r")
+ (const_int -1)))]
+ "TARGET_ARM"
+ "orr%?\\t%0, %1, %1, asr #31"
+ [(set_attr "predicable" "yes")]
+)
+
(define_insn "*smax_insn"
[(set (match_operand:SI 0 "s_register_operand" "=r,r")
(smax:SI (match_operand:SI 1 "s_register_operand" "%0,?r")