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[PATCH, committed] PowerPC clobber match_scratch cleanup

	While fixing the store_multiple_power bug, I noticed that a number
of "X" constraints for scratch clobbers were missing the output modifier.
This patch fixes this omission.

Bootstrapped and regression tested on powerpc-ibm-aix5.2.0.0.

David


	* config/rs6000/rs6000.md: Mark all "X" constraints for clobbered
	scratch with output modifier.

Index: rs6000.md
===================================================================
--- rs6000.md	(revision 113549)
+++ rs6000.md	(working copy)
@@ -8986,7 +8986,7 @@
   [(match_parallel 0 "store_multiple_operation"
     [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))
 	  (match_operand:SI 2 "gpc_reg_operand" "r"))
-     (clobber (match_scratch:SI 3 "X"))
+     (clobber (match_scratch:SI 3 "=X"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
 	  (match_operand:SI 4 "gpc_reg_operand" "r"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
@@ -9009,7 +9009,7 @@
   [(match_parallel 0 "store_multiple_operation"
     [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))
 	  (match_operand:SI 2 "gpc_reg_operand" "r"))
-     (clobber (match_scratch:SI 3 "X"))
+     (clobber (match_scratch:SI 3 "=X"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
 	  (match_operand:SI 4 "gpc_reg_operand" "r"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
@@ -9030,7 +9030,7 @@
   [(match_parallel 0 "store_multiple_operation"
     [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))
 	  (match_operand:SI 2 "gpc_reg_operand" "r"))
-     (clobber (match_scratch:SI 3 "X"))
+     (clobber (match_scratch:SI 3 "=X"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
 	  (match_operand:SI 4 "gpc_reg_operand" "r"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
@@ -9049,7 +9049,7 @@
   [(match_parallel 0 "store_multiple_operation"
     [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))
 	  (match_operand:SI 2 "gpc_reg_operand" "r"))
-     (clobber (match_scratch:SI 3 "X"))
+     (clobber (match_scratch:SI 3 "=X"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
 	  (match_operand:SI 4 "gpc_reg_operand" "r"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
@@ -9066,7 +9066,7 @@
   [(match_parallel 0 "store_multiple_operation"
     [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))
 	  (match_operand:SI 2 "gpc_reg_operand" "r"))
-     (clobber (match_scratch:SI 3 "X"))
+     (clobber (match_scratch:SI 3 "=X"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
 	  (match_operand:SI 4 "gpc_reg_operand" "r"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
@@ -9081,7 +9081,7 @@
   [(match_parallel 0 "store_multiple_operation"
     [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))
 	  (match_operand:SI 2 "gpc_reg_operand" "r"))
-     (clobber (match_scratch:SI 3 "X"))
+     (clobber (match_scratch:SI 3 "=X"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 4)))
 	  (match_operand:SI 4 "gpc_reg_operand" "r"))
      (set (mem:SI (plus:SI (match_dup 1) (const_int 8)))
@@ -9293,7 +9293,7 @@
    (clobber (reg:SI 10))
    (clobber (reg:SI 11))
    (clobber (reg:SI 12))
-   (clobber (match_scratch:SI 5 "X"))]
+   (clobber (match_scratch:SI 5 "=X"))]
   "TARGET_STRING && ! TARGET_POWER
    && ((INTVAL (operands[2]) > 24 && INTVAL (operands[2]) < 32)
        || INTVAL (operands[2]) == 0)
@@ -9354,7 +9354,7 @@
    (clobber (reg:SI  8))
    (clobber (reg:SI  9))
    (clobber (reg:SI 10))
-   (clobber (match_scratch:SI 5 "X"))]
+   (clobber (match_scratch:SI 5 "=X"))]
   "TARGET_STRING && ! TARGET_POWER
    && INTVAL (operands[2]) > 16 && INTVAL (operands[2]) <= 32
    && (REGNO (operands[0]) < 5 || REGNO (operands[0]) > 10)
@@ -9408,7 +9408,7 @@
    (clobber (reg:SI 6))
    (clobber (reg:SI 7))
    (clobber (reg:SI 8))
-   (clobber (match_scratch:SI 5 "X"))]
+   (clobber (match_scratch:SI 5 "=X"))]
   "TARGET_STRING && ! TARGET_POWER
    && INTVAL (operands[2]) > 8 && INTVAL (operands[2]) <= 16
    && (REGNO (operands[0]) < 5 || REGNO (operands[0]) > 8)
@@ -9448,7 +9448,7 @@
    (use (match_operand:SI 2 "immediate_operand" "i"))
    (use (match_operand:SI 3 "immediate_operand" "i"))
    (clobber (match_scratch:DI 4 "=&r"))
-   (clobber (match_scratch:SI 5 "X"))]
+   (clobber (match_scratch:SI 5 "=X"))]
   "TARGET_STRING && ! TARGET_POWER && ! TARGET_POWERPC64
    && INTVAL (operands[2]) > 4 && INTVAL (operands[2]) <= 8"
   "{lsi|lswi} %4,%1,%2\;{stsi|stswi} %4,%0,%2"
@@ -9485,7 +9485,7 @@
    (use (match_operand:SI 2 "immediate_operand" "i"))
    (use (match_operand:SI 3 "immediate_operand" "i"))
    (clobber (match_scratch:SI 4 "=&r"))
-   (clobber (match_scratch:SI 5 "X"))]
+   (clobber (match_scratch:SI 5 "=X"))]
   "TARGET_STRING && ! TARGET_POWER
    && INTVAL (operands[2]) > 0 && INTVAL (operands[2]) <= 4"
   "{lsi|lswi} %4,%1,%2\;{stsi|stswi} %4,%0,%2"
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