diff options
Diffstat (limited to 'gcc/expr.h')
| -rw-r--r-- | gcc/expr.h | 30 |
1 files changed, 23 insertions, 7 deletions
@@ -71,8 +71,29 @@ extern rtx convert_to_mode (machine_mode, rtx, int); /* Convert an rtx to MODE from OLDMODE and return the result. */ extern rtx convert_modes (machine_mode, machine_mode, rtx, int); -/* Emit code to move a block Y to a block X. */ +/* Expand a call to memcpy or memmove or memcmp, and return the result. */ +extern rtx emit_block_op_via_libcall (enum built_in_function, rtx, rtx, rtx, + bool); + +static inline rtx +emit_block_copy_via_libcall (rtx dst, rtx src, rtx size, bool tailcall = false) +{ + return emit_block_op_via_libcall (BUILT_IN_MEMCPY, dst, src, size, tailcall); +} +static inline rtx +emit_block_move_via_libcall (rtx dst, rtx src, rtx size, bool tailcall = false) +{ + return emit_block_op_via_libcall (BUILT_IN_MEMMOVE, dst, src, size, tailcall); +} + +static inline rtx +emit_block_comp_via_libcall (rtx dst, rtx src, rtx size, bool tailcall = false) +{ + return emit_block_op_via_libcall (BUILT_IN_MEMCMP, dst, src, size, tailcall); +} + +/* Emit code to move a block Y to a block X. */ enum block_op_methods { BLOCK_OP_NORMAL, @@ -82,12 +103,7 @@ enum block_op_methods BLOCK_OP_TAILCALL }; -extern GTY(()) tree block_clear_fn; -extern void init_block_move_fn (const char *); -extern void init_block_clear_fn (const char *); - extern rtx emit_block_move (rtx, rtx, rtx, enum block_op_methods); -extern rtx emit_block_move_via_libcall (rtx, rtx, rtx, bool); extern rtx emit_block_move_hints (rtx, rtx, rtx, enum block_op_methods, unsigned int, HOST_WIDE_INT, unsigned HOST_WIDE_INT, @@ -166,7 +182,7 @@ extern rtx clear_storage_hints (rtx, rtx, enum block_op_methods, unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT); /* The same, but always output an library call. */ -rtx set_storage_via_libcall (rtx, rtx, rtx, bool); +extern rtx set_storage_via_libcall (rtx, rtx, rtx, bool = false); /* Expand a setmem pattern; return true if successful. */ extern bool set_storage_via_setmem (rtx, rtx, rtx, unsigned int, |