From patchwork Tue Sep 14 09:31:41 2010
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Subject: [ARM] Disable -fsched-interblock for Cortex-M4
From: Jie Zhang <jie@codesourcery.com>
X-Patchwork-Id: 64683
Message-Id: <4C8F40FD.8020402@codesourcery.com>
To: gcc-patches@gcc.gnu.org
Date: Tue, 14 Sep 2010 17:31:41 +0800

Since there is no Cortex-M4F processor, I updated my patch.

OK?



	* config/arm/arm.c (arm_override_options): Enable
	-fno-sched-interblock for Cortex-M4 and Cortex-M4F.

Index: config/arm/arm.c
===================================================================
--- config/arm/arm.c	(revision 164143)
+++ config/arm/arm.c	(working copy)
@@ -1886,6 +1886,11 @@ arm_override_options (void)
 	fix_cm3_ldrd = 0;
     }
 
+  /* Enable -fno-sched-interblock for Cortex-M4 and Cortex-M4F.  */
+  if (arm_selected_tune->core == cortexm4
+      || arm_selected_tune->core == cortexm4f)
+    flag_schedule_interblock = 0;
+
   if (TARGET_THUMB1 && flag_schedule_insns)
     {
       /* Don't warn since it's on by default in -O2.  */