expr.h (enum block_op_methods): New.

        * expr.h (enum block_op_methods): New.
        (emit_block_move): Update prototype.
        * expr.c (block_move_libcall_safe_for_call_parm): New.
        (emit_block_move_via_loop): New.
        (emit_block_move): Use them.  New argument METHOD.
        (emit_push_insn): Always respect the given alignment.
        (expand_assignment): Update call to emit_block_move.
        (store_expr, store_field, expand_expr): Likewise.
        * builtins.c (expand_builtin_apply): Likewise.
        (expand_builtin_memcpy, expand_builtin_va_copy): Likewise.
        * function.c (expand_function_end): Likewise.
        * config/sh/sh.c (sh_initialize_trampoline): Likewise.
        * config/sparc/sparc.c (sparc_va_arg): Likewise.
        * calls.c (expand_call, emit_library_call_value_1): Likewise.
        (save_fixed_argument_area): Use emit_block_move with
        BLOCK_OP_CALL_PARM instead of move_by_pieces.
        (restore_fixed_argument_area): Likewise.
        (store_one_arg): Fix alignment parameter to emit_push_insn.

From-SVN: r56661

1 files changed, 9 insertions, 1 deletions

diff --git a/gcc/expr.h b/gcc/expr.h
index 76b5c80..c3a1009 100644
--- a/gcc/expr.h
+++ b/gcc/expr.h
@@ -394,7 +394,15 @@ extern rtx convert_modes PARAMS ((enum machine_mode, enum machine_mode,
 				  rtx, int));
 
 /* Emit code to move a block Y to a block X.  */
-extern rtx emit_block_move PARAMS ((rtx, rtx, rtx));
+
+enum block_op_methods
+{
+  BLOCK_OP_NORMAL,
+  BLOCK_OP_CALL_PARM,
+  BLOCK_OP_NO_LIBCALL
+};
+
+extern rtx emit_block_move PARAMS ((rtx, rtx, rtx, enum block_op_methods));
 
 /* Copy all or part of a value X into registers starting at REGNO.
    The number of registers to be filled is NREGS.  */