2018-05-27 Chung-Ju Wu <jasonwucj@gmail.com>
+ * config/nds32/nds32.md (bswapsi2, bswaphi2): New patterns.
+
+2018-05-27 Chung-Ju Wu <jasonwucj@gmail.com>
+
* config/nds32/nds32.c (nds32_attribute_table): Add "no_prologue".
(nds32_init_machine_status): Initialize machine->attr_naked_p and
machine->attr_no_prologue_p.
[(set_attr "type" "alu")
(set_attr "length" "4")]
)
+
+(define_expand "bswapsi2"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (bswap:SI (match_operand:SI 1 "register_operand" "r")))]
+ ""
+{
+ emit_insn (gen_unspec_wsbh (operands[0], operands[1]));
+ emit_insn (gen_rotrsi3 (operands[0], operands[0], GEN_INT (16)));
+ DONE;
+})
+
+(define_insn "bswaphi2"
+ [(set (match_operand:HI 0 "register_operand" "=r")
+ (bswap:HI (match_operand:HI 1 "register_operand" "r")))]
+ ""
+ "wsbh\t%0, %1"
+ [(set_attr "type" "alu")
+ (set_attr "length" "4")]
+)
+
;; ----------------------------------------------------------------------------
;; Patterns for exception handling