diff options
Diffstat (limited to 'gcc/expr.h')
| -rw-r--r-- | gcc/expr.h | 21 |
1 files changed, 12 insertions, 9 deletions
@@ -103,12 +103,16 @@ enum block_op_methods BLOCK_OP_TAILCALL }; +typedef rtx (*by_pieces_constfn) (void *, HOST_WIDE_INT, machine_mode); + extern rtx emit_block_move (rtx, rtx, rtx, enum block_op_methods); extern rtx emit_block_move_hints (rtx, rtx, rtx, enum block_op_methods, unsigned int, HOST_WIDE_INT, unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT); +extern rtx emit_block_cmp_hints (rtx, rtx, rtx, tree, rtx, bool, + by_pieces_constfn, void *); extern bool emit_storent_insn (rtx to, rtx from); /* Copy all or part of a value X into registers starting at REGNO. @@ -173,6 +177,11 @@ extern void use_regs (rtx *, int, int); /* Mark a PARALLEL as holding a parameter for the next CALL_INSN. */ extern void use_group_regs (rtx *, rtx); +#ifdef GCC_INSN_CODES_H +extern rtx expand_cmpstrn_or_cmpmem (insn_code, rtx, rtx, rtx, tree, rtx, + HOST_WIDE_INT); +#endif + /* Write zeros through the storage of OBJECT. If OBJECT has BLKmode, SIZE is its length in bytes. */ extern rtx clear_storage (rtx, rtx, enum block_op_methods); @@ -191,10 +200,6 @@ extern bool set_storage_via_setmem (rtx, rtx, rtx, unsigned int, unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT); -extern unsigned HOST_WIDE_INT move_by_pieces_ninsns (unsigned HOST_WIDE_INT, - unsigned int, - unsigned int); - /* Return nonzero if it is desirable to store LEN bytes generated by CONSTFUN with several move instructions by store_by_pieces function. CONSTFUNDATA is a pointer which will be passed as argument @@ -203,8 +208,7 @@ extern unsigned HOST_WIDE_INT move_by_pieces_ninsns (unsigned HOST_WIDE_INT, MEMSETP is true if this is a real memset/bzero, not a copy of a const string. */ extern int can_store_by_pieces (unsigned HOST_WIDE_INT, - rtx (*) (void *, HOST_WIDE_INT, - machine_mode), + by_pieces_constfn, void *, unsigned int, bool); /* Generate several move instructions to store LEN bytes generated by @@ -213,8 +217,7 @@ extern int can_store_by_pieces (unsigned HOST_WIDE_INT, ALIGN is maximum alignment we can assume. MEMSETP is true if this is a real memset/bzero, not a copy. Returns TO + LEN. */ -extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT, - rtx (*) (void *, HOST_WIDE_INT, machine_mode), +extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT, by_pieces_constfn, void *, unsigned int, bool, int); /* Emit insns to set X from Y. */ @@ -295,7 +298,7 @@ rtx get_personality_function (tree); /* Determine whether the LEN bytes can be moved by using several move instructions. Return nonzero if a call to move_by_pieces should succeed. */ -extern int can_move_by_pieces (unsigned HOST_WIDE_INT, unsigned int); +extern bool can_move_by_pieces (unsigned HOST_WIDE_INT, unsigned int); extern unsigned HOST_WIDE_INT highest_pow2_factor (const_tree); |