flow.c (life_analysis): When collecting reg info, clear regs_ever_live.

        * flow.c (life_analysis): When collecting reg info, clear
        regs_ever_live.

From-SVN: r32139

gcc/ChangeLog

+2000-02-24  Richard Henderson  <rth@cygnus.com>
+
+	* flow.c (life_analysis): When collecting reg info, clear
+	regs_ever_live.
+
 Thu Feb 24 22:06:52 2000  J"orn Rennecke <amylaar@cygnus.co.uk>
 
 	Fix bug exposed by reload.c no longer rounding the frame

gcc/flow.c

@@ -2524,6 +2524,9 @@ life_analysis (f, nregs, file, remove_dead_code)
   /* "Update" life info from zero.  It'd be nice to begin the
      relaxation with just the exit and noreturn blocks, but that set
      is not immediately handy.  */
+
+  if (flags & PROP_REG_INFO)
+    memset (regs_ever_live, 0, sizeof(regs_ever_live));
   update_life_info (all_blocks, UPDATE_LIFE_GLOBAL, flags);
 
   /* Clean up.  */