convex.md: Use "+" instead of "=" for outputs wrapped in a STRICT_LOW_PART.

        * convex.md: Use "+" instead of "=" for outputs wrapped in a
        STRICT_LOW_PART.
        * i370.md, i386.md, ns32k.md, sh.md, vax.md: Likewise.

From-SVN: r36362

gcc/ChangeLog

+Tue Sep 12 08:53:57 2000  Jeffrey A Law  (law@cygnus.com)
+
+	* convex.md: Use "+" instead of "=" for outputs wrapped in a
+	STRICT_LOW_PART.
+	* i370.md, i386.md, ns32k.md, sh.md, vax.md: Likewise.
+
 2000-09-12  Kazu Hirata  <kazu@hxi.com>
 
 	* unroll.c: Fix formatting.

gcc/config/convex/convex.md

@@ -301,7 +301,7 @@
      operands[1] = force_reg (SImode, operands[1]);")
 
 (define_insn ""
-  [(set (strict_low_part (match_operand:SI 0 "general_operand" "=d,r,d,r,r,m"))
+  [(set (strict_low_part (match_operand:SI 0 "general_operand" "+d,r,d,r,r,m"))
 	(match_operand:SI 1 "general_operand" "d,r,Q,m,i,r"))]
   "register_operand (operands[0], SImode)
    || register_operand (operands[1], SImode)"

gcc/config/i370/i370.md

@@ -1065,7 +1065,7 @@ check_label_emit ();
 ;
 
 (define_insn "movstrictqi"
-  [(set (strict_low_part (match_operand:QI 0 "general_operand" "=d"))
+  [(set (strict_low_part (match_operand:QI 0 "general_operand" "+d"))
 	(match_operand:QI 1 "general_operand" "g"))]
   ""
   "*
@@ -1087,7 +1087,7 @@ check_label_emit ();
 ;
 
 (define_insn ""
-  [(set (strict_low_part (match_operand:HI 0 "register_operand" "=d"))
+  [(set (strict_low_part (match_operand:HI 0 "register_operand" "+d"))
 	(match_operand:HI 1 "r_or_s_operand" "g"))]
   ""
   "*
@@ -1110,7 +1110,7 @@ check_label_emit ();
 )
 
 (define_insn "movstricthi"
-  [(set (strict_low_part (match_operand:HI 0 "general_operand" "=dm"))
+  [(set (strict_low_part (match_operand:HI 0 "general_operand" "+dm"))
 	(match_operand:HI 1 "general_operand" "d"))]
   ""
   "*

gcc/config/i386/i386.md

@@ -1717,7 +1717,7 @@
    (set_attr "mode" "HI")])
 
 (define_insn "*movstricthi_xor"
-  [(set (strict_low_part (match_operand:HI 0 "register_operand" "=r"))
+  [(set (strict_low_part (match_operand:HI 0 "register_operand" "+r"))
 	(match_operand:HI 1 "const0_operand" "i"))
    (clobber (reg:CC 17))]
   "reload_completed && (!TARGET_USE_MOV0 || optimize_size)"

gcc/config/ns32k/ns32k.md

@@ -993,7 +993,7 @@
 }")
 
 (define_insn ""
-  [(set (strict_low_part (match_operand:HI 0 "register_operand" "=r"))
+  [(set (strict_low_part (match_operand:HI 0 "register_operand" "+r"))
 	(plus:HI (match_operand:HI 1 "general_operand" "0")
 		 (match_operand:HI 2 "general_operand" "g")))]
   ""
@@ -1021,7 +1021,7 @@
 }")
 
 (define_insn ""
-  [(set (strict_low_part (match_operand:QI 0 "register_operand" "=r"))
+  [(set (strict_low_part (match_operand:QI 0 "register_operand" "+r"))
 	(plus:QI (match_operand:QI 1 "general_operand" "0")
 		 (match_operand:QI 2 "general_operand" "g")))]
   ""
@@ -1136,7 +1136,7 @@
 }")
 
 (define_insn ""
-  [(set (strict_low_part (match_operand:HI 0 "register_operand" "=r"))
+  [(set (strict_low_part (match_operand:HI 0 "register_operand" "+r"))
 	(minus:HI (match_operand:HI 1 "general_operand" "0")
 		  (match_operand:HI 2 "general_operand" "g")))]
   ""
@@ -1165,7 +1165,7 @@
 }")
 
 (define_insn ""
-  [(set (strict_low_part (match_operand:QI 0 "register_operand" "=r"))
+  [(set (strict_low_part (match_operand:QI 0 "register_operand" "+r"))
 	(minus:QI (match_operand:QI 1 "general_operand" "0")
 		  (match_operand:QI 2 "general_operand" "g")))]
   ""

gcc/config/sh/sh.md

@@ -2351,7 +2351,7 @@
    (set_attr "length" "*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,*,0")])
 
 (define_insn "movsi_i_lowpart"
-  [(set (strict_low_part (match_operand:SI 0 "general_movdst_operand" "=r,r,r,r,r,m,r"))
+  [(set (strict_low_part (match_operand:SI 0 "general_movdst_operand" "+r,r,r,r,r,m,r"))
 	(match_operand:SI 1 "general_movsrc_operand" "Q,rI,mr,xl,t,r,i"))]
    "register_operand (operands[0], SImode)
     || register_operand (operands[1], SImode)"

gcc/config/vax/vax.md

@@ -257,7 +257,7 @@
 }")
 
 (define_insn "movstricthi"
-  [(set (strict_low_part (match_operand:HI 0 "register_operand" "=g"))
+  [(set (strict_low_part (match_operand:HI 0 "register_operand" "+g"))
 	(match_operand:HI 1 "general_operand" "g"))]
   ""
   "*
@@ -307,7 +307,7 @@
 }")
 
 (define_insn "movstrictqi"
-  [(set (strict_low_part (match_operand:QI 0 "register_operand" "=g"))
+  [(set (strict_low_part (match_operand:QI 0 "register_operand" "+g"))
 	(match_operand:QI 1 "general_operand" "g"))]
   ""
   "*