xtensa.h (OPTIMIZATION_OPTIONS): Define to disable flag_reorder_blocks.

	* config/xtensa/xtensa.h (OPTIMIZATION_OPTIONS): Define to disable
	flag_reorder_blocks.

From-SVN: r99000

gcc/ChangeLog

+2005-04-29  Bob Wilson  <bob.wilson@acm.org>
+
+	* config/xtensa/xtensa.h (OPTIMIZATION_OPTIONS): Define to disable
+	flag_reorder_blocks.
+
 2005-04-28  Kazu Hirata  <kazu@cs.umass.edu>
 
 	PR tree-optimization/21030

gcc/config/xtensa/xtensa.h

@@ -65,6 +65,19 @@ extern unsigned xtensa_current_frame_size;
   (XCHAL_HAVE_L32R	? 0 : MASK_CONST16))
 
 #define OVERRIDE_OPTIONS override_options ()
+
+/* Reordering blocks for Xtensa is not a good idea unless the compiler
+   understands the range of conditional branches.  Currently all branch
+   relaxation for Xtensa is handled in the assembler, so GCC cannot do a
+   good job of reordering blocks.  Do not enable reordering unless it is
+   explicitly requested.  */
+#define OPTIMIZATION_OPTIONS(LEVEL, SIZE)				\
+  do									\
+    {									\
+      flag_reorder_blocks = 0;						\
+    }									\
+  while (0)
+
 
 /* Target CPU builtins.  */
 #define TARGET_CPU_CPP_BUILTINS()					\