m32c.c (m32c_option_override): Disable -fcombine-stack-adjustments until flag…

m32c.c (m32c_option_override): Disable -fcombine-stack-adjustments until flag value tracking and compare...

* config/m32c/m32c.c (m32c_option_override): Disable
-fcombine-stack-adjustments until flag value tracking and compare
optimization can be rewritten.

From-SVN: r170022

gcc/ChangeLog

+2011-02-10  DJ Delorie  <dj@redhat.com>
+
+	* config/m32c/m32c.c (m32c_option_override): Disable
+	-fcombine-stack-adjustments until flag value tracking and compare
+	optimization can be rewritten.
+
 2011-02-10  Peter Bergner  <bergner@vnet.ibm.com>
 
 	* config/rs6000/linux64.h (PROCESSOR_DEFAULT): Change to

gcc/config/m32c/m32c.c

@@ -454,6 +454,11 @@ m32c_option_override (void)
      This is always worse than an absolute call.  */
   if (TARGET_A16)
     flag_no_function_cse = 1;
+
+  /* This wants to put insns between compares and their jumps.  */
+  /* FIXME: The right solution is to properly trace the flags register
+     values, but that is too much work for stage 4.  */
+  flag_combine_stack_adjustments = 0;
 }
 
 #undef TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE