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2010-10-08 Jie Zhang <jie@codesourcery.com>
* config/arm/arm.c (arm_override_options): Disable
-fsched-interblock for Cortex-M4.
=== modified file 'gcc/config/arm/arm.c'
Index: gcc-4.5/gcc/config/arm/arm.c
===================================================================
--- gcc-4.5.orig/gcc/config/arm/arm.c
+++ gcc-4.5/gcc/config/arm/arm.c
@@ -1913,6 +1913,10 @@ arm_override_options (void)
fix_cm3_ldrd = 0;
}
+ /* Disable -fsched-interblock for Cortex-M4. */
+ if (arm_selected_tune->core == cortexm4)
+ flag_schedule_interblock = 0;
+
if (TARGET_THUMB1 && flag_schedule_insns)
{
/* Don't warn since it's on by default in -O2. */
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