(movsf): Emit frsp if storing to memory and not PowerPC.

(movsf matcher): Remove explicit frsp.
(store sf with update): Likewise.

From-SVN: r7578

gcc/config/rs6000/rs6000.md

@@ -3788,7 +3788,20 @@
     }
 
   if (GET_CODE (operands[0]) == MEM)
-    operands[1] = force_reg (SFmode, operands[1]);
+    {
+      operands[1] = force_reg (SFmode, operands[1]);
+      if (! TARGET_POWERPC)
+	if (reload_in_progress || reload_completed)
+	  emit_insn (gen_truncdfsf2 (operands[1],
+				     gen_rtx (SUBREG, DFmode, operands[1], 0)));
+	else
+	  {
+	    rtx newreg = gen_reg_rtx (SFmode);
+	    emit_insn (gen_truncdfsf2 (newreg,
+                                       gen_rtx (SUBREG, DFmode, operands[1], 0)));
+	    operands[1] = newreg;
+          }
+    }
 
   if (GET_CODE (operands[0]) == REG && REGNO (operands[0]) < 32)
     {
@@ -3842,7 +3855,7 @@
   "@
    fmr %0,%1
    lfs%U1%X1 %0,%1
-   frsp %1,%1\;stfs%U0%X0 %1,%0"
+   stfs%U0%X0 %1,%0"
   [(set_attr "type" "fp,fpload,*")
    (set_attr "length" "*,*,8")])
 
@@ -4439,8 +4452,8 @@
 	(plus:SI (match_dup 1) (match_dup 2)))]
   ""
   "@
-   frsp %3,%3\;stfsux %3,%0,%2
-   frsp %3,%3\;stfsu %3,%2(%0)")
+   stfsux %3,%0,%2
+   stfsu %3,%2(%0)")
 
 (define_insn ""
   [(set (match_operand:DF 3 "gpc_reg_operand" "=f,f")