[ARM] Fix CLZ_DEFINED_VALUE_AT_ZERO for vector modes

2014-11-02  Michael Collison  <michael.collison@linaro.org>

	* config/arm/arm.h (CLZ_DEFINED_VALUE_AT_ZERO) : Update
	to support vector modes.
	(CTZ_DEFINED_VALUE_AT_ZERO): Ditto.

From-SVN: r217014

gcc/ChangeLog

+2014-11-02  Michael Collison  <michael.collison@linaro.org>
+
+	* config/arm/arm.h (CLZ_DEFINED_VALUE_AT_ZERO) : Update
+	to support vector modes.
+	(CTZ_DEFINED_VALUE_AT_ZERO): Ditto.
+
 2014-11-01  Andrew MacLeod  <amacleod@redhat,com>
 
 	* optabs.h: Flatten insn-codes.h to source files.  Move some prototypes

gcc/config/arm/arm.h

@@ -2142,9 +2142,10 @@ extern int making_const_table;
    ? reverse_condition_maybe_unordered (code) \
    : reverse_condition (code))
 
-/* The arm5 clz instruction returns 32.  */
-#define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE)  ((VALUE) = 32, 1)
-#define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE)  ((VALUE) = 32, 1)
+#define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) \
+  ((VALUE) = GET_MODE_UNIT_BITSIZE (MODE))
+#define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) \
+  ((VALUE) = GET_MODE_UNIT_BITSIZE (MODE))
 
 #define CC_STATUS_INIT \
   do { cfun->machine->thumb1_cc_insn = NULL_RTX; } while (0)