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/* Definitions for code generation pass of GNU compiler.
Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
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, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, 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,
/* Widening multiply of one unsigned and one signed operand. */
OTI_usmul_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,
/* Load exponent of a floating point number */
OTI_ldexp,
/* 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_lfloor,
OTI_ceil,
OTI_lceil,
OTI_btrunc,
OTI_round,
OTI_nearbyint,
OTI_rint,
OTI_lrint,
/* 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,
/* Reduction operations on a vector operand. */
OTI_reduc_smax,
OTI_reduc_umax,
OTI_reduc_smin,
OTI_reduc_umin,
OTI_reduc_splus,
OTI_reduc_uplus,
/* Summation, with result machine mode one or more wider than args. */
OTI_ssum_widen,
OTI_usum_widen,
/* Dot product, with result machine mode one or more wider than args. */
OTI_sdot_prod,
OTI_udot_prod,
/* Set specified field of vector operand. */
OTI_vec_set,
/* Extract specified field of vector operand. */
OTI_vec_extract,
/* Initialize vector operand. */
OTI_vec_init,
/* Whole vector shift. The shift amount is in bits. */
OTI_vec_shl,
OTI_vec_shr,
/* Extract specified elements from vectors, for vector load. */
OTI_vec_realign_load,
/* Perform a raise to the power of integer. */
OTI_powi,
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 usmul_widen_optab (optab_table[OTI_usmul_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 ldexp_optab (optab_table[OTI_ldexp])
#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 lfloor_optab (optab_table[OTI_lfloor])
#define ceil_optab (optab_table[OTI_ceil])
#define lceil_optab (optab_table[OTI_lceil])
#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 lrint_optab (optab_table[OTI_lrint])
#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 reduc_smax_optab (optab_table[OTI_reduc_smax])
#define reduc_umax_optab (optab_table[OTI_reduc_umax])
#define reduc_smin_optab (optab_table[OTI_reduc_smin])
#define reduc_umin_optab (optab_table[OTI_reduc_umin])
#define reduc_splus_optab (optab_table[OTI_reduc_splus])
#define reduc_uplus_optab (optab_table[OTI_reduc_uplus])
#define ssum_widen_optab (optab_table[OTI_ssum_widen])
#define usum_widen_optab (optab_table[OTI_usum_widen])
#define sdot_prod_optab (optab_table[OTI_sdot_prod])
#define udot_prod_optab (optab_table[OTI_udot_prod])
#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_shl_optab (optab_table[OTI_vec_shl])
#define vec_shr_optab (optab_table[OTI_vec_shr])
#define vec_realign_load_optab (optab_table[OTI_vec_realign_load])
#define powi_optab (optab_table[OTI_powi])
/* Conversion optabs have their own table and indexes. */
enum convert_optab_index
{
COI_sext,
COI_zext,
COI_trunc,
COI_sfix,
COI_ufix,
COI_sfixtrunc,
COI_ufixtrunc,
COI_sfloat,
COI_ufloat,
COI_MAX
};
extern GTY(()) convert_optab convert_optab_table[COI_MAX];
#define sext_optab (convert_optab_table[COI_sext])
#define zext_optab (convert_optab_table[COI_zext])
#define trunc_optab (convert_optab_table[COI_trunc])
#define sfix_optab (convert_optab_table[COI_sfix])
#define ufix_optab (convert_optab_table[COI_ufix])
#define sfixtrunc_optab (convert_optab_table[COI_sfixtrunc])
#define ufixtrunc_optab (convert_optab_table[COI_ufixtrunc])
#define sfloat_optab (convert_optab_table[COI_sfloat])
#define ufloat_optab (convert_optab_table[COI_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 sets. */
extern enum insn_code setmem_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 cmpstrn_optab[NUM_MACHINE_MODES];
extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES];
/* Synchronization primitives. This first set is atomic operation for
which we don't care about the resulting value. */
extern enum insn_code sync_add_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_and_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_nand_optab[NUM_MACHINE_MODES];
/* This second set is atomic operations in which we return the value
that existed in memory before the operation. */
extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_old_nand_optab[NUM_MACHINE_MODES];
/* This third set is atomic operations in which we return the value
that resulted after performing the operation. */
extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES];
extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES];
/* Atomic compare and swap. */
extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES];
extern enum insn_code sync_compare_and_swap_cc[NUM_MACHINE_MODES];
/* Atomic exchange with acquire semantics. */
extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES];
/* Atomic clear with release semantics. */
extern enum insn_code sync_lock_release[NUM_MACHINE_MODES];
/* Define functions given in optabs.c. */
extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op,
rtx target, int unsignedp);
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);
/* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */
extern rtx expand_vec_shift_expr (tree, rtx);
#endif /* GCC_OPTABS_H */