re PR target/48090 (gcc 4.5.2 miscompilation when building on arm)

Fix PR target/48090

2011-04-12  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

       PR target/48090
       * config/arm/arm.md (*arm_negdi2): Fix early clobber constraints.

From-SVN: r172318

gcc/ChangeLog

+2011-04-12  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
+
+       PR target/48090
+       * config/arm/arm.md (*arm_negdi2): Fix early clobber constraints.
+
 2011-04-12  Richard Sandiford  <richard.sandiford@linaro.org>
 
 	* recog.h (insn_operand_data): Add an "allows_mem" field.

gcc/config/arm/arm.md

@@ -3696,7 +3696,7 @@
 ;; The constraints here are to prevent a *partial* overlap (where %Q0 == %R1).
 ;; The first alternative allows the common case of a *full* overlap.
 (define_insn "*arm_negdi2"
-  [(set (match_operand:DI         0 "s_register_operand" "=&r,r")
+  [(set (match_operand:DI         0 "s_register_operand" "=r,&r")
 	(neg:DI (match_operand:DI 1 "s_register_operand"  "0,r")))
    (clobber (reg:CC CC_REGNUM))]
   "TARGET_ARM"