Delete old versions of GCC.

Change-Id: I710f125d905290e1024cbd67f48299861790c66c

1 files changed, 0 insertions, 109 deletions

diff --git a/gcc-4.3.1/gcc/stack-ptr-mod.c b/gcc-4.3.1/gcc/stack-ptr-mod.c
deleted file mode 100644
index a5c85a524..000000000
--- a/gcc-4.3.1/gcc/stack-ptr-mod.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/* Discover if the stack pointer is modified in a function. 
-   Copyright (C) 2007
-   Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3.  If not see
-<http://www.gnu.org/licenses/>.  */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
-#include "tree.h"
-#include "rtl.h"
-#include "regs.h"
-#include "expr.h"
-#include "tree-pass.h"
-#include "basic-block.h"
-#include "flags.h"
-#include "output.h"
-#include "df.h"
-
-/* Determine if the stack pointer is constant over the life of the function.
-   Only useful before prologues have been emitted.  */
-
-static void
-notice_stack_pointer_modification_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED,
-				     void *data ATTRIBUTE_UNUSED)
-{
-  if (x == stack_pointer_rtx
-      /* The stack pointer is only modified indirectly as the result
-	 of a push until later.  See the comments in rtl.texi
-	 regarding Embedded Side-Effects on Addresses.  */
-      || (MEM_P (x)
-	  && GET_RTX_CLASS (GET_CODE (XEXP (x, 0))) == RTX_AUTOINC
-	  && XEXP (XEXP (x, 0), 0) == stack_pointer_rtx))
-    current_function_sp_is_unchanging = 0;
-}
-
-static void
-notice_stack_pointer_modification (void)
-{
-  basic_block bb;
-  rtx insn;
-
-  /* Assume that the stack pointer is unchanging if alloca hasn't
-     been used.  */
-  current_function_sp_is_unchanging = !current_function_calls_alloca;
-  if (current_function_sp_is_unchanging)
-    FOR_EACH_BB (bb)
-      FOR_BB_INSNS (bb, insn)
-        {
-	  if (INSN_P (insn))
-	    {
-	      /* Check if insn modifies the stack pointer.  */
-	      note_stores (PATTERN (insn),
-			   notice_stack_pointer_modification_1,
-			   NULL);
-	      if (! current_function_sp_is_unchanging)
-		return;
-	    }
-	}
-
-  /* The value coming into this pass was 0, and the exit block uses
-     are based on this.  If the value is now 1, we need to redo the
-     exit block uses.  */
-  if (df && current_function_sp_is_unchanging)
-    df_update_exit_block_uses ();
-}
-
-  /* Some targets can emit simpler epilogues if they know that sp was
-     not ever modified during the function.  After reload, of course,
-     we've already emitted the epilogue so there's no sense searching.  */
-
-static unsigned int
-rest_of_handle_stack_ptr_mod (void)
-{
-  notice_stack_pointer_modification ();
-  return 0;
-}
-
-struct tree_opt_pass pass_stack_ptr_mod =
-{
-  NULL,		                        /* name */
-  NULL,                                 /* gate */
-  rest_of_handle_stack_ptr_mod,         /* execute */
-  NULL,                                 /* sub */
-  NULL,                                 /* next */
-  0,                                    /* static_pass_number */
-  0,                                    /* tv_id */
-  0,                                    /* properties_required */
-  0,                                    /* properties_provided */
-  0,                                    /* properties_destroyed */
-  0,                                    /* todo_flags_start */
-  0,                                    /* todo_flags_finish */
-  0                                     /* letter */
-};