2010-05-25  Julian Brown  <julian@codesourcery.com>

	gcc/
	* config/arm/arm.c (arm_tune_cortex_a5): New.
	(arm_override_options): Set above. Set max_insns_skipped to 1 for
	Cortex-A5.
	* config/arm/arm.h (arm_tune_cortex_a5): Add declaration.
	(BRANCH_COST): Set to zero for Cortex-A5 unless optimising for
	size.

2010-07-26  Julian Brown  <julian@codesourcery.com>

	Merge from Sourcery G++ 4.4:

 	2009-08-26  Julian Brown  <julian@codesourcery.com>
 
 	gcc/config/arm/

=== modified file 'gcc/config/arm/arm.c'
--- old/gcc/config/arm/arm.c	2010-08-12 14:08:29 +0000
+++ new/gcc/config/arm/arm.c	2010-08-12 16:18:41 +0000
@@ -671,6 +671,9 @@
    This typically means an ARM6 or ARM7 with MMU or MPU.  */
 int arm_tune_wbuf = 0;
 
+/* Nonzero if tuning for Cortex-A5.  */
+int arm_tune_cortex_a5 = 0;
+
 /* Nonzero if tuning for Cortex-A9.  */
 int arm_tune_cortex_a9 = 0;
 
@@ -1582,6 +1585,7 @@
   arm_tune_xscale = (tune_flags & FL_XSCALE) != 0;
   arm_arch_iwmmxt = (insn_flags & FL_IWMMXT) != 0;
   arm_arch_hwdiv = (insn_flags & FL_DIV) != 0;
+  arm_tune_cortex_a5 = (arm_tune == cortexa5) != 0;
   arm_tune_cortex_a9 = (arm_tune == cortexa9) != 0;
 
   /* If we are not using the default (ARM mode) section anchor offset
@@ -1880,6 +1884,11 @@
          that is worth skipping is shorter.  */
       if (arm_tune_strongarm)
         max_insns_skipped = 3;
+
+      /* Branches can be dual-issued on Cortex-A5, so conditional execution is
+	 less appealing.  */
+      if (arm_tune_cortex_a5)
+        max_insns_skipped = 1;
     }
 
   /* Hot/Cold partitioning is not currently supported, since we can't

=== modified file 'gcc/config/arm/arm.h'
--- old/gcc/config/arm/arm.h	2010-08-05 16:34:46 +0000
+++ new/gcc/config/arm/arm.h	2010-08-12 16:18:41 +0000
@@ -435,6 +435,9 @@
 /* Nonzero if tuning for stores via the write buffer.  */
 extern int arm_tune_wbuf;
 
+/* Nonzero if tuning for Cortex-A5.  */
+extern int arm_tune_cortex_a5;
+
 /* Nonzero if tuning for Cortex-A9.  */
 extern int arm_tune_cortex_a9;
 
@@ -2222,7 +2225,8 @@
 /* Try to generate sequences that don't involve branches, we can then use
    conditional instructions */
 #define BRANCH_COST(speed_p, predictable_p) \
-  (TARGET_32BIT ? (TARGET_THUMB2 && optimize_size ? 1 : 4) \
+  (TARGET_32BIT ? ((arm_tune_cortex_a5 && !optimize_size) ? 0 \
+		   : (TARGET_THUMB2 && optimize_size ? 1 : 4)) \
 		: (optimize > 0 ? 2 : 0))
 
 /* Position Independent Code.  */