arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling for architecture v4.

* arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
for architecture v4.

From-SVN: r21816

gcc/ChangeLog

+Tue Aug 18 03:20:53 1998  Richard Earnshaw  (rearnsha@arm.com)
+
+	* arm.h (SECONDARY_INPUT_RELOAD_CLASS): Return NO_REGS if compiling
+	for architecture v4.
+
 Mon Aug 17 21:26:38 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>
 
 	* config/sparc/sparc.md (sltu, sgeu): Don't FAIL, call

gcc/config/arm/arm.h

@@ -874,7 +874,7 @@ enum reg_class
 
 /* If we need to load shorts byte-at-a-time, then we need a scratch. */
 #define SECONDARY_INPUT_RELOAD_CLASS(CLASS,MODE,X)		\
-  (((MODE) == HImode && TARGET_SHORT_BY_BYTES			\
+  (((MODE) == HImode && ! arm_arch4 && TARGET_SHORT_BY_BYTES	\
     && (GET_CODE (X) == MEM					\
 	|| ((GET_CODE (X) == REG || GET_CODE (X) == SUBREG)	\
 	    && true_regnum (X) == -1)))				\