/* Definitions for code generation pass of GNU compiler. Copyright (C) 2001, 2002, 2003, 2004, 2005 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 2, 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 COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef GCC_OPTABS_H #define GCC_OPTABS_H #include "insn-codes.h" /* Optabs are tables saying how to generate insn bodies for various machine modes and numbers of operands. Each optab applies to one operation. For example, add_optab applies to addition. The insn_code slot is the enum insn_code that says how to generate an insn for this operation on a particular machine mode. It is CODE_FOR_nothing if there is no such insn on the target machine. The `lib_call' slot is the name of the library function that can be used to perform the operation. A few optabs, such as move_optab and cmp_optab, are used by special code. */ struct optab_handlers GTY(()) { enum insn_code insn_code; rtx libfunc; }; struct optab GTY(()) { enum rtx_code code; struct optab_handlers handlers[NUM_MACHINE_MODES]; }; typedef struct optab * optab; /* A convert_optab is for some sort of conversion operation between modes. The first array index is the destination mode, the second is the source mode. */ struct convert_optab GTY(()) { enum rtx_code code; struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES]; }; typedef struct convert_optab *convert_optab; /* Given an enum insn_code, access the function to construct the body of that kind of insn. */ #define GEN_FCN(CODE) (insn_data[CODE].genfun) /* Enumeration of valid indexes into optab_table. */ enum optab_index { OTI_add, OTI_addv, OTI_sub, OTI_subv, /* Signed and fp multiply */ OTI_smul, OTI_smulv, /* Signed multiply, return high word */ OTI_smul_highpart, OTI_umul_highpart, /* Signed multiply with result one machine mode wider than args */ OTI_smul_widen, OTI_umul_widen, /* Signed divide */ OTI_sdiv, OTI_sdivv, /* Signed divide-and-remainder in one */ OTI_sdivmod, OTI_udiv, OTI_udivmod, /* Signed remainder */ OTI_smod, OTI_umod, /* Floating point remainder functions */ OTI_fmod, OTI_drem, /* Convert float to integer in float fmt */ OTI_ftrunc, /* Logical and */ OTI_and, /* Logical or */ OTI_ior, /* Logical xor */ OTI_xor, /* Arithmetic shift left */ OTI_ashl, /* Logical shift right */ OTI_lshr, /* Arithmetic shift right */ OTI_ashr, /* Rotate left */ OTI_rotl, /* Rotate right */ OTI_rotr, /* Signed and floating-point minimum value */ OTI_smin, /* Signed and floating-point maximum value */ OTI_smax, /* Unsigned minimum value */ OTI_umin, /* Unsigned maximum value */ OTI_umax, /* Power */ OTI_pow, /* Arc tangent of y/x */ OTI_atan2, /* Move instruction. */ OTI_mov, /* Move, preserving high part of register. */ OTI_movstrict, /* Move, with a misaligned memory. */ OTI_movmisalign, /* Unary operations */ /* Negation */ OTI_neg, OTI_negv, /* Abs value */ OTI_abs, OTI_absv, /* Bitwise not */ OTI_one_cmpl, /* Bit scanning and counting */ OTI_ffs, OTI_clz, OTI_ctz, OTI_popcount, OTI_parity, /* Square root */ OTI_sqrt, /* Sine-Cosine */ OTI_sincos, /* Sine */ OTI_sin, /* Inverse sine */ OTI_asin, /* Cosine */ OTI_cos, /* Inverse cosine */ OTI_acos, /* Exponential */ OTI_exp, /* Base-10 Exponential */ OTI_exp10, /* Base-2 Exponential */ OTI_exp2, /* Exponential - 1*/ OTI_expm1, /* Radix-independent exponent */ OTI_logb, OTI_ilogb, /* Natural Logarithm */ OTI_log, /* Base-10 Logarithm */ OTI_log10, /* Base-2 Logarithm */ OTI_log2, /* logarithm of 1 plus argument */ OTI_log1p, /* Rounding functions */ OTI_floor, OTI_ceil, OTI_btrunc, OTI_round, OTI_nearbyint, OTI_rint, /* Tangent */ OTI_tan, /* Inverse tangent */ OTI_atan, /* Copy sign */ OTI_copysign, /* Compare insn; two operands. */ OTI_cmp, /* Used only for libcalls for unsigned comparisons. */ OTI_ucmp, /* tst insn; compare one operand against 0 */ OTI_tst, /* Floating point comparison optabs - used primarily for libfuncs */ OTI_eq, OTI_ne, OTI_gt, OTI_ge, OTI_lt, OTI_le, OTI_unord, /* String length */ OTI_strlen, /* Combined compare & jump/store flags/move operations. */ OTI_cbranch, OTI_cmov, OTI_cstore, /* Push instruction. */ OTI_push, /* Conditional add instruction. */ OTI_addcc, /* Set specified field of vector operand. */ OTI_vec_set, /* Extract specified field of vector operand. */ OTI_vec_extract, /* Initialize vector operand. */ OTI_vec_init, /* Extract specified elements from vectors, for vector load. */ OTI_vec_realign_load, OTI_MAX }; extern GTY(()) optab optab_table[OTI_MAX]; #define add_optab (optab_table[OTI_add]) #define sub_optab (optab_table[OTI_sub]) #define smul_optab (optab_table[OTI_smul]) #define addv_optab (optab_table[OTI_addv]) #define subv_optab (optab_table[OTI_subv]) #define smul_highpart_optab (optab_table[OTI_smul_highpart]) #define umul_highpart_optab (optab_table[OTI_umul_highpart]) #define smul_widen_optab (optab_table[OTI_smul_widen]) #define umul_widen_optab (optab_table[OTI_umul_widen]) #define sdiv_optab (optab_table[OTI_sdiv]) #define smulv_optab (optab_table[OTI_smulv]) #define sdivv_optab (optab_table[OTI_sdivv]) #define sdivmod_optab (optab_table[OTI_sdivmod]) #define udiv_optab (optab_table[OTI_udiv]) #define udivmod_optab (optab_table[OTI_udivmod]) #define smod_optab (optab_table[OTI_smod]) #define umod_optab (optab_table[OTI_umod]) #define fmod_optab (optab_table[OTI_fmod]) #define drem_optab (optab_table[OTI_drem]) #define ftrunc_optab (optab_table[OTI_ftrunc]) #define and_optab (optab_table[OTI_and]) #define ior_optab (optab_table[OTI_ior]) #define xor_optab (optab_table[OTI_xor]) #define ashl_optab (optab_table[OTI_ashl]) #define lshr_optab (optab_table[OTI_lshr]) #define ashr_optab (optab_table[OTI_ashr]) #define rotl_optab (optab_table[OTI_rotl]) #define rotr_optab (optab_table[OTI_rotr]) #define smin_optab (optab_table[OTI_smin]) #define smax_optab (optab_table[OTI_smax]) #define umin_optab (optab_table[OTI_umin]) #define umax_optab (optab_table[OTI_umax]) #define pow_optab (optab_table[OTI_pow]) #define atan2_optab (optab_table[OTI_atan2]) #define mov_optab (optab_table[OTI_mov]) #define movstrict_optab (optab_table[OTI_movstrict]) #define movmisalign_optab (optab_table[OTI_movmisalign]) #define neg_optab (optab_table[OTI_neg]) #define negv_optab (optab_table[OTI_negv]) #define abs_optab (optab_table[OTI_abs]) #define absv_optab (optab_table[OTI_absv]) #define one_cmpl_optab (optab_table[OTI_one_cmpl]) #define ffs_optab (optab_table[OTI_ffs]) #define clz_optab (optab_table[OTI_clz]) #define ctz_optab (optab_table[OTI_ctz]) #define popcount_optab (optab_table[OTI_popcount]) #define parity_optab (optab_table[OTI_parity]) #define sqrt_optab (optab_table[OTI_sqrt]) #define sincos_optab (optab_table[OTI_sincos]) #define sin_optab (optab_table[OTI_sin]) #define asin_optab (optab_table[OTI_asin]) #define cos_optab (optab_table[OTI_cos]) #define acos_optab (optab_table[OTI_acos]) #define exp_optab (optab_table[OTI_exp]) #define exp10_optab (optab_table[OTI_exp10]) #define exp2_optab (optab_table[OTI_exp2]) #define expm1_optab (optab_table[OTI_expm1]) #define logb_optab (optab_table[OTI_logb]) #define ilogb_optab (optab_table[OTI_ilogb]) #define log_optab (optab_table[OTI_log]) #define log10_optab (optab_table[OTI_log10]) #define log2_optab (optab_table[OTI_log2]) #define log1p_optab (optab_table[OTI_log1p]) #define floor_optab (optab_table[OTI_floor]) #define ceil_optab (optab_table[OTI_ceil]) #define btrunc_optab (optab_table[OTI_btrunc]) #define round_optab (optab_table[OTI_round]) #define nearbyint_optab (optab_table[OTI_nearbyint]) #define rint_optab (optab_table[OTI_rint]) #define tan_optab (optab_table[OTI_tan]) #define atan_optab (optab_table[OTI_atan]) #define copysign_optab (optab_table[OTI_copysign]) #define cmp_optab (optab_table[OTI_cmp]) #define ucmp_optab (optab_table[OTI_ucmp]) #define tst_optab (optab_table[OTI_tst]) #define eq_optab (optab_table[OTI_eq]) #define ne_optab (optab_table[OTI_ne]) #define gt_optab (optab_table[OTI_gt]) #define ge_optab (optab_table[OTI_ge]) #define lt_optab (optab_table[OTI_lt]) #define le_optab (optab_table[OTI_le]) #define unord_optab (optab_table[OTI_unord]) #define strlen_optab (optab_table[OTI_strlen]) #define cbranch_optab (optab_table[OTI_cbranch]) #define cmov_optab (optab_table[OTI_cmov]) #define cstore_optab (optab_table[OTI_cstore]) #define push_optab (optab_table[OTI_push]) #define addcc_optab (optab_table[OTI_addcc]) #define vec_set_optab (optab_table[OTI_vec_set]) #define vec_extract_optab (optab_table[OTI_vec_extract]) #define vec_init_optab (optab_table[OTI_vec_init]) #define vec_realign_load_optab (optab_table[OTI_vec_realign_load]) /* Conversion optabs have their own table and indexes. */ enum convert_optab_index { CTI_sext, CTI_zext, CTI_trunc, CTI_sfix, CTI_ufix, CTI_sfixtrunc, CTI_ufixtrunc, CTI_sfloat, CTI_ufloat, CTI_MAX }; extern GTY(()) convert_optab convert_optab_table[CTI_MAX]; #define sext_optab (convert_optab_table[CTI_sext]) #define zext_optab (convert_optab_table[CTI_zext]) #define trunc_optab (convert_optab_table[CTI_trunc]) #define sfix_optab (convert_optab_table[CTI_sfix]) #define ufix_optab (convert_optab_table[CTI_ufix]) #define sfixtrunc_optab (convert_optab_table[CTI_sfixtrunc]) #define ufixtrunc_optab (convert_optab_table[CTI_ufixtrunc]) #define sfloat_optab (convert_optab_table[CTI_sfloat]) #define ufloat_optab (convert_optab_table[CTI_ufloat]) /* These arrays record the insn_code of insns that may be needed to perform input and output reloads of special objects. They provide a place to pass a scratch register. */ extern enum insn_code reload_in_optab[NUM_MACHINE_MODES]; extern enum insn_code reload_out_optab[NUM_MACHINE_MODES]; /* Contains the optab used for each rtx code. */ extern GTY(()) optab code_to_optab[NUM_RTX_CODE + 1]; typedef rtx (*rtxfun) (rtx); /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...) gives the gen_function to make a branch to test that condition. */ extern rtxfun bcc_gen_fctn[NUM_RTX_CODE]; /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...) gives the insn code to make a store-condition insn to test that condition. */ extern enum insn_code setcc_gen_code[NUM_RTX_CODE]; #ifdef HAVE_conditional_move /* Indexed by the machine mode, gives the insn code to make a conditional move insn. */ extern enum insn_code movcc_gen_code[NUM_MACHINE_MODES]; #endif /* Indexed by the machine mode, gives the insn code for vector conditional operation. */ extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES]; extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES]; /* This array records the insn_code of insns to perform block moves. */ extern enum insn_code movmem_optab[NUM_MACHINE_MODES]; /* This array records the insn_code of insns to perform block clears. */ extern enum insn_code clrmem_optab[NUM_MACHINE_MODES]; /* These arrays record the insn_code of two different kinds of insns to perform block compares. */ extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES]; extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES]; /* Define functions given in optabs.c. */ extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab, rtx op0, rtx op1, rtx op2, rtx target, int unsignedp); /* Expand a binary operation given optab and rtx operands. */ extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int, enum optab_methods); extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int, enum optab_methods); /* Expand a binary operation with both signed and unsigned forms. */ extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx, rtx, int, enum optab_methods); /* Generate code to perform an operation on one operand with two results. */ extern int expand_twoval_unop (optab, rtx, rtx, rtx, int); /* Generate code to perform an operation on two operands with two results. */ extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int); /* Generate code to perform an operation on two operands with two results, using a library function. */ extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx, enum rtx_code); /* Expand a unary arithmetic operation given optab rtx operand. */ extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int); /* Expand the absolute value operation. */ extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int); extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int); /* Expand the copysign operation. */ extern rtx expand_copysign (rtx, rtx, rtx); /* Generate an instruction with a given INSN_CODE with an output and an input. */ extern void emit_unop_insn (int, rtx, rtx, enum rtx_code); /* Emit code to perform a series of operations on a multi-word quantity, one word at a time. */ extern rtx emit_no_conflict_block (rtx, rtx, rtx, rtx, rtx); /* Emit one rtl insn to compare two rtx's. */ extern void emit_cmp_insn (rtx, rtx, enum rtx_code, rtx, enum machine_mode, int); /* The various uses that a comparison can have; used by can_compare_p: jumps, conditional moves, store flag operations. */ enum can_compare_purpose { ccp_jump, ccp_cmov, ccp_store_flag }; /* Return the optab used for computing the given operation on the type given by the second argument. */ extern optab optab_for_tree_code (enum tree_code, tree); /* Nonzero if a compare of mode MODE can be done straightforwardly (without splitting it into pieces). */ extern int can_compare_p (enum rtx_code, enum machine_mode, enum can_compare_purpose); /* Return the INSN_CODE to use for an extend operation. */ extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int); /* Generate the body of an insn to extend Y (with mode MFROM) into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */ extern rtx gen_extend_insn (rtx, rtx, enum machine_mode, enum machine_mode, int); /* Call this to reset the function entry for one optab. */ extern void set_optab_libfunc (optab, enum machine_mode, const char *); extern void set_conv_libfunc (convert_optab, enum machine_mode, enum machine_mode, const char *); /* Generate code for a FLOAT_EXPR. */ extern void expand_float (rtx, rtx, int); /* Generate code for a FIX_EXPR. */ extern void expand_fix (rtx, rtx, int); /* Return tree if target supports vector operations for COND_EXPR. */ bool expand_vec_cond_expr_p (tree, enum machine_mode); /* Generate code for VEC_COND_EXPR. */ extern rtx expand_vec_cond_expr (tree, rtx); #endif /* GCC_OPTABS_H */