re PR middle-end/6205 (-O -fpmath=sse breaks visibility of register accumulated sum)

	PR middle-end/6205
	* config/i386/i386.md (movsf_1): Use pxor only if TARGET_SSE2,
	otherwise xorps.

From-SVN: r52464

gcc/ChangeLog

+2002-04-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR middle-end/6205
+	* config/i386/i386.md (movsf_1): Use pxor only if TARGET_SSE2,
+	otherwise xorps.
+
 2002-04-17  NIIBE Yutaka  <gniibe@m17n.org>
 
 	* config/sh/elf.h: Undefine ASM_OUTPUT_CASE_LABEL.

gcc/config/i386/i386.md

@@ -2754,7 +2754,10 @@
     case 4:
       return "mov{l}\t{%1, %0|%0, %1}";
     case 5:
-      return "pxor\t%0, %0";
+      if (TARGET_SSE2)
+	return "pxor\t%0, %0";
+      else
+	return "xorps\t%0, %0";
     case 6:
       if (TARGET_PARTIAL_REG_DEPENDENCY)
 	return "movaps\t{%1, %0|%0, %1}";