1 files changed, 95 insertions, 0 deletions

diff --git a/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch
new file mode 100644
index 0000000000..9b56560942
--- /dev/null
+++ b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99336.patch
@@ -0,0 +1,95 @@
+        gcc/
+        * config/arm/arm.c (arm_override_options): Override alignments if
+        tuning for Cortex-A8.
+        (create_fix_barrier, arm_reorg): If aligning to jumps or loops,
+        make labels have a size.
+        * config/arm/arm.md (VUNSPEC_ALIGN16, VUNSPEC_ALIGN32): New constants.
+        (align_16, align_32): New patterns.
+
+2010-07-26  Julian Brown  <julian@codesourcery.com>
+
+        Merge from Sourcery G++ 4.4:
+        
+        Mark Shinwell  <shinwell@codesourcery.com>
+ 
+
+=== modified file 'gcc/config/arm/arm.c'
+--- old/gcc/config/arm/arm.c    2010-08-10 14:03:02 +0000
++++ new/gcc/config/arm/arm.c    2010-08-12 11:33:54 +0000
+@@ -1449,6 +1449,16 @@
+      chosen.  */
+   gcc_assert (arm_tune != arm_none);
+ 
++  if (arm_tune == cortexa8 && optimize >= 3)
++    {
++      /* These alignments were experimentally determined to improve SPECint
++        performance on SPECCPU 2000.  */
++      if (align_functions <= 0)
++       align_functions = 16;
++      if (align_jumps <= 0)
++       align_jumps = 16;
++    }
++
+   tune_flags = all_cores[(int)arm_tune].flags;
+ 
+   if (target_fp16_format_name)
+@@ -11263,7 +11273,10 @@
+       gcc_assert (GET_CODE (from) != BARRIER);
+ 
+       /* Count the length of this insn.  */
+-      count += get_attr_length (from);
++      if (LABEL_P (from) && (align_jumps > 0 || align_loops > 0))
++        count += MAX (align_jumps, align_loops);
++      else
++        count += get_attr_length (from);
+ 
+       /* If there is a jump table, add its length.  */
+       tmp = is_jump_table (from);
+@@ -11603,6 +11616,8 @@
+              insn = table;
+            }
+        }
++      else if (LABEL_P (insn) && (align_jumps > 0 || align_loops > 0))
++       address += MAX (align_jumps, align_loops);
+     }
+ 
+   fix = minipool_fix_head;
+
+=== modified file 'gcc/config/arm/arm.md'
+--- old/gcc/config/arm/arm.md   2010-08-12 11:29:02 +0000
++++ new/gcc/config/arm/arm.md   2010-08-12 11:33:54 +0000
+@@ -135,6 +135,8 @@
+    (VUNSPEC_WCMP_EQ  12) ; Used by the iWMMXt WCMPEQ instructions
+    (VUNSPEC_WCMP_GTU 13) ; Used by the iWMMXt WCMPGTU instructions
+    (VUNSPEC_WCMP_GT  14) ; Used by the iwMMXT WCMPGT instructions
++   (VUNSPEC_ALIGN16  15) ; Used to force 16-byte alignment.
++   (VUNSPEC_ALIGN32  16) ; Used to force 32-byte alignment.
+    (VUNSPEC_EH_RETURN 20); Use to override the return address for exception
+                         ; handling.
+   ]
+@@ -11042,6 +11044,24 @@
+   "
+ )
+ 
++(define_insn "align_16"
++  [(unspec_volatile [(const_int 0)] VUNSPEC_ALIGN16)]
++  "TARGET_EITHER"
++  "*
++  assemble_align (128);
++  return \"\";
++  "
++)
++
++(define_insn "align_32"
++  [(unspec_volatile [(const_int 0)] VUNSPEC_ALIGN32)]
++  "TARGET_EITHER"
++  "*
++  assemble_align (256);
++  return \"\";
++  "
++)
++
+ (define_insn "consttable_end"
+   [(unspec_volatile [(const_int 0)] VUNSPEC_POOL_END)]
+   "TARGET_EITHER"
+