* attribs.c (handle_no_check_memory_usage_atribute): Deleted.

	(c_com): Delete its reference.
	* builtins.c: Delete memory checking code.
	* calls.c, expr.c, function.c, stmt.c: Likewise.
	* builtins.c (expand_builtin_arg_info): Remove reference to
	EXPAND_MEMORY_USE_* modifiers.
	* explow.c (expr_size): Likewise.
	* expr.c (expand_expr, expand_increment): Likewise.
	* expr.h (ARGS_SIZE_RTX): Likewise.
	* function.c (assign_parms, expand_pending_sizeso): Likewise.
	* c-decl.c (duplicate_decls): Don't handle DECL_NO_CHECK_MEMORY_USAGE.
	* expr.c (in_check_memory_usage): Delete.
	(get_push_address, get_memory_usage_from_modifier): Delete.
	(expand_assigment): Use EXPAND_WRITE on destination.
	(expand_expr): Delete ro_modifier.
	* expr.h (expand_modifier): Delete EXPAND_MEMORY_* entries and
	add EXPAND_WRITE.
	(memory_use_mode): Delete.
	* flags.h (flag_check_memory_usage): Deleted.
	(flag_prefix_function_name): Likewise.
	* function.c (expand_function_start): Don't set
	current_function_check_memory_usage.
	* function.h (check_memory_usage): Delete.
	* libfuncs.h, optabs.c: Delete chkr_* stuff.
	* stmt.c (expand_asm_opernd): Change EXPAND_MEMORY_USE_WO to
	EXPAND_WRITE.
	* toplev.c (flag_check_memory_usage): Deleted.
	(flag_prefix_function_name): Likewise.
	(f_options, process_options): Delete references to above.
	* tree.h (DECL_NO_CHECK_MEMORY_USAGE): Deleted.
	* varasm.c (CHKR_PREFIX): Deleted.
	(make_decl_rtl): Remove flag_prefix_function_name handling.
	(assemble_name): Likewise.
	* doc/extend.texi: Remove no_check_memory_usage attribute.
	* doc/invoke.texi: Remove -fcheck-memory-usage
	and -fprefix-function-name.
	* cp/decl.c (duplicate_decls): Don't copy DECL_NO_CHECK_MEMORY_USAGE.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47697 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 2 insertions, 40 deletions

diff --git a/gcc/calls.c b/gcc/calls.c
index f4637bc1242..2ab670bb32b 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -1675,17 +1675,6 @@ rtx_for_function_call (fndecl, exp)
       funaddr = funexp
 	= expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, VOIDmode, 0);
       pop_temp_slots ();	/* FUNEXP can't be BLKmode.  */
-
-      /* Check the function is executable.  */
-      if (current_function_check_memory_usage)
-	{
-#ifdef POINTERS_EXTEND_UNSIGNED
-	  if (GET_MODE (funexp) != ptr_mode)
-	    funaddr = convert_memory_address (ptr_mode, funexp);
-#endif
-	  emit_library_call (chkr_check_exec_libfunc, LCT_CONST_MAKE_BLOCK,
-			     VOIDmode, 1, funaddr, ptr_mode);
-	}
       emit_queue ();
     }
   return funexp;
@@ -2162,13 +2151,6 @@ expand_call (exp, target, ignore)
   /* The alignment of the stack, in bytes.  */
   HOST_WIDE_INT preferred_unit_stack_boundary;
 
-  /* The value of the function call can be put in a hard register.  But
-     if -fcheck-memory-usage, code which invokes functions (and thus
-     damages some hard registers) can be inserted before using the value.
-     So, target is always a pseudo-register in that case.  */
-  if (current_function_check_memory_usage)
-    target = 0;
-
   /* See if this is "nothrow" function call.  */
   if (TREE_NOTHROW (exp))
     flags |= ECF_NOTHROW;
@@ -3014,16 +2996,6 @@ expand_call (exp, target, ignore)
 				     force_operand (structure_value_addr,
 						    NULL_RTX)));
 
-	  /* Mark the memory for the aggregate as write-only.  */
-	  if (current_function_check_memory_usage)
-	    emit_library_call (chkr_set_right_libfunc, LCT_CONST_MAKE_BLOCK,
-			       VOIDmode, 3,
-			       structure_value_addr, ptr_mode,
-			       GEN_INT (struct_value_size),
-			       TYPE_MODE (sizetype),
-			       GEN_INT (MEMORY_USE_WO),
-			       TYPE_MODE (integer_type_node));
-
 	  if (GET_CODE (struct_value_rtx) == REG)
 	    use_reg (&call_fusage, struct_value_rtx);
 	}
@@ -4422,18 +4394,8 @@ store_one_arg (arg, argblock, flags, variable_size, reg_parm_stack_space)
     do_pending_stack_adjust ();
 
   if (arg->value == arg->stack)
-    {
-      /* If the value is already in the stack slot, we are done.  */
-      if (current_function_check_memory_usage && GET_CODE (arg->stack) == MEM)
-	{
-	  emit_library_call (chkr_set_right_libfunc, LCT_CONST_MAKE_BLOCK,
-			     VOIDmode, 3, XEXP (arg->stack, 0), Pmode,
-			     ARGS_SIZE_RTX (arg->size),
-			     TYPE_MODE (sizetype),
-			     GEN_INT (MEMORY_USE_RW),
-			     TYPE_MODE (integer_type_node));
-	}
-    }
+    /* If the value is already in the stack slot, we are done.  */
+    ;
   else if (arg->mode != BLKmode)
     {
       int size;