(eq reg (const_int 0)): New pattern.

From-SVN: r12575

diff --git a/gcc/config/i960/i960.md b/gcc/config/i960/i960.md
index 1891a3ec1184b163437f2ed2b99a80478ccf99c9..f6ca00e3850a5c370a7b66f73e0937ee1cca2347 100644 (file)
--- a/gcc/config/i960/i960.md
+++ b/gcc/config/i960/i960.md
@@ -350,6 +350,13 @@
   operands[1] = gen_compare_reg (LEU, i960_compare_op0, i960_compare_op1);
 }")
 
+(define_insn ""
+  [(set (match_operand:SI 0 "general_operand" "=d")
+       (eq:SI (match_operand:SI 1 "register_operand" "d") (const_int 0)))]
+  ""
+  "shro        %1,1,%0"
+  [(set_attr "type" "alu2")])
+
 (define_insn ""
   [(set (match_operand:SI 0 "general_operand" "=d")
        (match_operator:SI 1 "comparison_operator" [(reg:CC 36) (const_int 0)]))]