reload.c (find_reloads): Reorganize if seqeunce to switch.

	* reload.c (find_reloads): Reorganize if seqeunce to switch.

	* cfgrtl.c (rtl_redirect_edge_and_branch):  Set the source BB as dirty.
	(cfglayout_redirect_edge_and_branch):  Set the source BB as dirty.

From-SVN: r78936

gcc/ChangeLog

+2004-03-04  Jan Hubicka  <jh@suse.cz>
+
+	* reload.c (find_reloads): Reorganize if seqeunce to switch.
+
+	* cfgrtl.c (rtl_redirect_edge_and_branch):  Set the source BB as dirty.
+	(cfglayout_redirect_edge_and_branch):  Set the source BB as dirty.
+
 2004-03-04  Steve Ellcey  <sje@cup.hp.com>
 
 	* config/ia64/ia64.md (divdf3_internal_thr): Fix algorithm.

gcc/cfgrtl.c

@@ -933,6 +933,8 @@ redirect_branch_edge (edge e, basic_block target)
 static bool
 rtl_redirect_edge_and_branch (edge e, basic_block target)
 {
+  basic_block src = e->src;
+
   if (e->flags & (EDGE_ABNORMAL_CALL | EDGE_EH))
     return false;
 
@@ -940,11 +942,15 @@ rtl_redirect_edge_and_branch (edge e, basic_block target)
     return true;
 
   if (try_redirect_by_replacing_jump (e, target, false))
+    {
+      src->flags |= BB_DIRTY;
       return true;
+    }
 
   if (!redirect_branch_edge (e, target))
     return false;
 
+  src->flags |= BB_DIRTY;
   return true;
 }
 
@@ -2379,7 +2385,10 @@ cfg_layout_redirect_edge_and_branch (edge e, basic_block dest)
 
   if (e->src != ENTRY_BLOCK_PTR
       && try_redirect_by_replacing_jump (e, dest, true))
+    {
+      src->flags |= BB_DIRTY;
       return true;
+    }
 
   if (e->src == ENTRY_BLOCK_PTR
       && (e->flags & EDGE_FALLTHRU) && !(e->flags & EDGE_COMPLEX))
@@ -2388,6 +2397,7 @@ cfg_layout_redirect_edge_and_branch (edge e, basic_block dest)
 	fprintf (dump_file, "Redirecting entry edge from bb %i to %i\n",
 		 e->src->index, dest->index);
 
+      e->src->flags |= BB_DIRTY;
       redirect_edge_succ (e, dest);
       return true;
     }
@@ -2411,6 +2421,7 @@ cfg_layout_redirect_edge_and_branch (edge e, basic_block dest)
 	  if (!redirect_branch_edge (e, dest))
 	    abort ();
 	  e->flags |= EDGE_FALLTHRU;
+          e->src->flags |= BB_DIRTY;
 	  return true;
 	}
       /* In case we are redirecting fallthru edge to the branch edge
@@ -2438,6 +2449,7 @@ cfg_layout_redirect_edge_and_branch (edge e, basic_block dest)
   if (simplejump_p (BB_END (src)))
     abort ();
 
+  src->flags |= BB_DIRTY;
   return ret;
 }
 

gcc/reload.c

@@ -2610,11 +2610,15 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
       while ((c = *p))
 	{
 	  p += CONSTRAINT_LEN (c, p);
-	  if (c == '=')
+	  switch (c)
+	    {
+	    case '=':
 	      modified[i] = RELOAD_WRITE;
-	  else if (c == '+')
+	      break;
+	    case '+':
 	      modified[i] = RELOAD_READ_WRITE;
-	  else if (c == '%')
+	      break;
+	    case '%':
 	      {
 		/* The last operand should not be marked commutative.  */
 		if (i == noperands - 1)
@@ -2632,7 +2636,11 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
 		else if (!this_insn_is_asm)
 		  abort ();
 	      }
-	  else if (ISDIGIT (c))
+	      break;
+	    /* Use of ISDIGIT is tempting here, but it may get expensive because
+	       of locale support we don't want.  */
+	    case '0': case '1': case '2': case '3': case '4':
+	    case '5': case '6': case '7': case '8': case '9':
 	      {
 		c = strtoul (p - 1, &p, 10);
 
@@ -2669,6 +2677,7 @@ find_reloads (rtx insn, int replace, int ind_levels, int live_known,
 	      }
 	    }
 	}
+    }
 
   /* Examine each operand that is a memory reference or memory address
      and reload parts of the addresses into index registers.