print-rtl.c (xspaces): Remove.

	* print-rtl.c (xspaces): Remove.
	(print_rtx): Use printf field-width, rather than xpsaces, to
	indent.
	* toplev.c (main): Disable sibling-call optimization if we are
	handling exceptions.

	* reload1.c (reload): Delete all USEs generated during reload.

From-SVN: r42917

gcc/ChangeLog

+2001-06-05  Mark Mitchell  <mark@codesourcery.com>
+
+	* print-rtl.c (xspaces): Remove.
+	(print_rtx): Use printf field-width, rather than xpsaces, to
+	indent.
+	* toplev.c (main): Disable sibling-call optimization if we are
+	handling exceptions.
+	
+2001-06-05  Bernd Schmidt  <bernds@redhat.com>
+
+	* reload1.c (reload): Delete all USEs generated during reload.
+
 2001-06-05  scott snyder  <snyder@fnal.gov>
 
 	* gccbug.in:  Fix typo.

gcc/print-rtl.c

@@ -47,8 +47,6 @@ const char * reg_names[] = REGISTER_NAMES;
 
 static FILE *outfile;
 
-static const char xspaces[] = "                                                                                                                                                                ";
-
 static int sawclose = 0;
 
 static int indent;
@@ -91,9 +89,8 @@ print_rtx (in_rtx)
       if (flag_simple)
 	fputc (' ', outfile);
       else
-	fprintf (outfile, "\n%s%s",
-		 print_rtx_head,
-		 (xspaces + (sizeof xspaces - 1 - indent * 2)));
+	fprintf (outfile, "\n%s%*s",
+		 print_rtx_head, indent * 2, "");
       sawclose = 0;
     }
 
@@ -282,9 +279,8 @@ print_rtx (in_rtx)
 	indent += 2;
 	if (sawclose)
 	  {
-	    fprintf (outfile, "\n%s%s",
-                     print_rtx_head,
-		     (xspaces + (sizeof xspaces - 1 - indent * 2)));
+	    fprintf (outfile, "\n%s%*s",
+                     print_rtx_head, indent * 2, "");
 	    sawclose = 0;
 	  }
 	fputs ("[ ", outfile);
@@ -300,9 +296,8 @@ print_rtx (in_rtx)
 	    indent -= 2;
 	  }
 	if (sawclose)
-	  fprintf (outfile, "\n%s%s",
-                   print_rtx_head,
-		   (xspaces + (sizeof xspaces - 1 - indent * 2)));
+	  fprintf (outfile, "\n%s%*s",
+                   print_rtx_head, indent * 2, "");
 
 	fputs ("] ", outfile);
 	sawclose = 1;

gcc/reload1.c

@@ -1187,7 +1187,7 @@ reload (first, global)
 					 CALL_INSN_FUNCTION_USAGE (insn));
 
 	if ((GET_CODE (PATTERN (insn)) == USE
-	     && find_reg_note (insn, REG_EQUAL, NULL_RTX))
+	     && INSN_UID (insn) >= reload_first_uid)
 	    || (GET_CODE (PATTERN (insn)) == CLOBBER
 		&& (GET_CODE (XEXP (PATTERN (insn), 0)) != REG
 		    || ! REG_FUNCTION_VALUE_P (XEXP (PATTERN (insn), 0)))))

gcc/toplev.c

@@ -2523,7 +2523,7 @@ compile_file (name)
 
    This does nothing for local (non-static) variables, unless the
    variable is a register variable with an ASMSPEC.  In that case, or
-   if the variable is not an automatice, it sets up the RTL and
+   if the variable is not an automatic, it sets up the RTL and
    outputs any assembler code (label definition, storage allocation
    and initialization).
 
@@ -4897,6 +4897,12 @@ toplev_main (argc, argv)
 	warning ("-Wuninitialized is not supported without -O");
     }
 
+  /* We do not currently support sibling-call optimization in the
+     presence of exceptions.  See PR2975 for a test-case that will
+     fail if we try to combine both of these features.  */
+  if (flag_exceptions)
+    flag_optimize_sibling_calls = 0;
+
 #ifdef OVERRIDE_OPTIONS
   /* Some machines may reject certain combinations of options.  */
   OVERRIDE_OPTIONS;