1 files changed, 0 insertions, 198 deletions
diff --git a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0053-Patch-microblaze-Reducing-Stack-space-for-arguments.patch b/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0053-Patch-microblaze-Reducing-Stack-space-for-arguments.patch
deleted file mode 100644
index 377154d7f..000000000
--- a/meta-xilinx/meta-microblaze/recipes-devtools/gcc/gcc-10/0053-Patch-microblaze-Reducing-Stack-space-for-arguments.patch
+++ /dev/null
@@ -1,198 +0,0 @@
-From e146b21e18e51ab6ce77af2c39cdf3375606c1eb Mon Sep 17 00:00:00 2001
-From: Mahesh Bodapati <mbodapat@xilinx.com>
-Date: Tue, 24 Nov 2020 12:26:32 +0530
-Subject: [PATCH 53/54] [Patch, microblaze]: Reducing Stack space for arguments
-
-Currently in Microblaze target stack space for arguments in register is being
-allocated even if there are no arguments in the function.
-This patch will optimize the extra 24 bytes that are being allocated.
-
-Signed-off-by :Nagaraju Mekala <nmekala@xilix.com>
-              :Ajit Agarwal  <ajitkum@xilinx.com>
----
- gcc/config/microblaze/microblaze-protos.h |   1 +
- gcc/config/microblaze/microblaze.c        | 132 +++++++++++++++++++++-
- gcc/config/microblaze/microblaze.h        |   4 +-
- 3 files changed, 134 insertions(+), 3 deletions(-)
-
-diff --git a/gcc/config/microblaze/microblaze-protos.h b/gcc/config/microblaze/microblaze-protos.h
-index 460feac4ac5..b8a3321dbdf 100644
---- a/gcc/config/microblaze/microblaze-protos.h
-+++ b/gcc/config/microblaze/microblaze-protos.h
-@@ -60,6 +60,7 @@ extern int symbol_mentioned_p (rtx);
- extern int label_mentioned_p (rtx);
- extern bool microblaze_cannot_force_const_mem (machine_mode, rtx);
- extern void microblaze_eh_return (rtx op0);
-+int  microblaze_reg_parm_stack_space(tree fun);
- #endif  /* RTX_CODE */
- 
- /* Declare functions in microblaze-c.c.  */
-diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
-index 1bba77dab6d..dac0596bc7d 100644
---- a/gcc/config/microblaze/microblaze.c
-+++ b/gcc/config/microblaze/microblaze.c
-@@ -2080,6 +2080,136 @@ microblaze_must_save_register (int regno)
-   return 0;
- }
- 
-+static bool
-+microblaze_parm_needs_stack (cumulative_args_t args_so_far, tree type)
-+{
-+  int unsignedp;
-+  rtx entry_parm;
-+
-+  /* Catch errors.  */
-+  if (type == NULL || type == error_mark_node)
-+    return true;
-+
-+  if (TREE_CODE (type) == POINTER_TYPE)
-+    return true;
-+
-+  /* Handle types with no storage requirement.  */
-+  if (TYPE_MODE (type) == VOIDmode)
-+    return false;
-+
-+   /* Handle complex types.  */
-+  if (TREE_CODE (type) == COMPLEX_TYPE)
-+    return (microblaze_parm_needs_stack (args_so_far, TREE_TYPE (type))
-+             || microblaze_parm_needs_stack (args_so_far, TREE_TYPE (type)));
-+
-+  /* Handle transparent aggregates.  */
-+  if ((TREE_CODE (type) == UNION_TYPE || TREE_CODE (type) == RECORD_TYPE)
-+     && TYPE_TRANSPARENT_AGGR (type))
-+  type = TREE_TYPE (first_field (type));
-+
-+  /* See if this arg was passed by invisible reference.  */
-+  function_arg_info arg (type, /*named=*/true);
-+  apply_pass_by_reference_rules (get_cumulative_args (args_so_far), arg);
-+
-+  /* Find mode as it is passed by the ABI.  */
-+  unsignedp = TYPE_UNSIGNED (type);
-+  arg.mode = promote_mode (arg.type, arg.mode, &unsignedp);
-+
-+  /* If there is no incoming register, we need a stack.  */
-+  entry_parm = microblaze_function_arg (args_so_far, arg);
-+  if (entry_parm == NULL)
-+    return true;
-+
-+  /* Likewise if we need to pass both in registers and on the stack.  */
-+  if (GET_CODE (entry_parm) == PARALLEL
-+     && XEXP (XVECEXP (entry_parm, 0, 0), 0) == NULL_RTX)
-+   return true;
-+
-+  /* Also true if we're partially in registers and partially not.  */
-+  if (function_arg_partial_bytes (args_so_far, arg) != 0)
-+     return true;
-+
-+  /* Update info on where next arg arrives in registers.  */
-+  microblaze_function_arg_advance (args_so_far, arg);
-+  return false;
-+}
-+
-+static bool
-+microblaze_function_parms_need_stack (tree fun, bool incoming)
-+{
-+  tree fntype, result;
-+  CUMULATIVE_ARGS args_so_far_v;
-+  cumulative_args_t args_so_far;
-+  int num_of_args = 0;
-+
-+  /* Must be a libcall, all of which only use reg parms.  */
-+  if (!fun)
-+    return true;
-+
-+  fntype = fun;
-+  if (!TYPE_P (fun))
-+    fntype = TREE_TYPE (fun);
-+
-+  /* Varargs functions need the parameter save area.  */
-+  if ((!incoming && !prototype_p (fntype)) || stdarg_p (fntype))
-+    return true;
-+
-+  INIT_CUMULATIVE_ARGS(args_so_far_v, fntype, NULL_RTX,0,0);
-+  args_so_far = pack_cumulative_args (&args_so_far_v);
-+
-+  /* When incoming, we will have been passed the function decl.
-+ *    *      It is necessary to use the decl to handle K&R style functions,
-+ *       *      where TYPE_ARG_TYPES may not be available.  */
-+  if (incoming)
-+    {
-+      gcc_assert (DECL_P (fun));
-+      result = DECL_RESULT (fun);
-+    }
-+  else
-+    result = TREE_TYPE (fntype);
-+
-+  if (result && aggregate_value_p (result, fntype))
-+    {
-+      if (!TYPE_P (result))
-+        result = build_pointer_type (result);
-+        microblaze_parm_needs_stack (args_so_far, result);
-+    }
-+
-+  if (incoming)
-+    {
-+      tree parm;
-+      for (parm = DECL_ARGUMENTS (fun);
-+           parm && parm != void_list_node;
-+           parm = TREE_CHAIN (parm))
-+         if (microblaze_parm_needs_stack (args_so_far, TREE_TYPE (parm)))
-+           return true;
-+    }
-+  else
-+    {
-+      function_args_iterator args_iter;
-+      tree arg_type;
-+
-+      FOREACH_FUNCTION_ARGS (fntype, arg_type, args_iter)
-+      {
-+        num_of_args;
-+        if (microblaze_parm_needs_stack (args_so_far, arg_type))
-+         return true;
-+      }
-+    }
-+
-+  if (num_of_args > 3) return true;
-+
-+  return false;
-+}
-+
-+int  microblaze_reg_parm_stack_space(tree fun)
-+{
-+  if (microblaze_function_parms_need_stack (fun,false))
-+    return MAX_ARGS_IN_REGISTERS * UNITS_PER_WORD;
-+  else
-+    return 0;
-+}
-+
- /* Return the bytes needed to compute the frame pointer from the current
-    stack pointer.
- 
-@@ -3470,7 +3600,7 @@ microblaze_asm_output_mi_thunk (FILE *file, tree thunk_fndecl ATTRIBUTE_UNUSED,
-   emit_insn (gen_indirect_jump (temp2));
- 
-   /* Run just enough of rest_of_compilation.  This sequence was
--     "borrowed" from rs6000.c.  */
-+     "borrowed" from microblaze.c */
-   insn = get_insns ();
-   shorten_branches (insn);
-   assemble_start_function (thunk_fndecl, fnname);
-diff --git a/gcc/config/microblaze/microblaze.h b/gcc/config/microblaze/microblaze.h
-index d467a7ee65d..be6c798c889 100644
---- a/gcc/config/microblaze/microblaze.h
-+++ b/gcc/config/microblaze/microblaze.h
-@@ -447,9 +447,9 @@ extern struct microblaze_frame_info current_frame_info;
- #define ARG_POINTER_CFA_OFFSET(FNDECL)		0
- #define DWARF_CIE_DATA_ALIGNMENT -1
- 
--#define REG_PARM_STACK_SPACE(FNDECL)  		(MAX_ARGS_IN_REGISTERS * UNITS_PER_WORD)
-+#define REG_PARM_STACK_SPACE(FNDECL)  		microblaze_reg_parm_stack_space(FNDECL)
- 
--#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE)	1
-+#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE)   1
- 
- #define STACK_BOUNDARY				(TARGET_MB_64 ? 64 : 32)
- 
--- 
-2.17.1
-