/* Definitions for code generation pass of GNU compiler.
- Copyright (C) 2001-2014 Free Software Foundation, Inc.
+ Copyright (C) 2001-2020 Free Software Foundation, Inc.
This file is part of GCC.
#ifndef GCC_OPTABS_H
#define GCC_OPTABS_H
-#include "insn-opinit.h"
+#include "optabs-query.h"
+#include "optabs-libfuncs.h"
+#include "vec-perm-indices.h"
/* Generate code for a widening multiply. */
extern rtx expand_widening_mult (machine_mode, rtx, rtx, rtx, int, optab);
-/* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing
- if the target does not have such an insn. */
-
-static inline enum insn_code
-optab_handler (optab op, machine_mode mode)
-{
- unsigned scode = (op << 16) | mode;
- gcc_assert (op > LAST_CONV_OPTAB);
- return raw_optab_handler (scode);
-}
-
-/* Return the insn used to perform conversion OP from mode FROM_MODE
- to mode TO_MODE; return CODE_FOR_nothing if the target does not have
- such an insn. */
-
-static inline enum insn_code
-convert_optab_handler (convert_optab op, machine_mode to_mode,
- machine_mode from_mode)
-{
- unsigned scode = (op << 16) | (from_mode << 8) | to_mode;
- gcc_assert (op > unknown_optab && op <= LAST_CONV_OPTAB);
- return raw_optab_handler (scode);
-}
-
-/* Return the insn used to implement mode MODE of OP, or CODE_FOR_nothing
- if the target does not have such an insn. */
-
-static inline enum insn_code
-direct_optab_handler (direct_optab op, machine_mode mode)
-{
- return optab_handler (op, mode);
-}
-
-/* Return true if UNOPTAB is for a trapping-on-overflow operation. */
-
-static inline bool
-trapv_unoptab_p (optab unoptab)
-{
- return (unoptab == negv_optab
- || unoptab == absv_optab);
-}
-
-/* Return true if BINOPTAB is for a trapping-on-overflow operation. */
-
-static inline bool
-trapv_binoptab_p (optab binoptab)
-{
- return (binoptab == addv_optab
- || binoptab == subv_optab
- || binoptab == smulv_optab);
-}
-
-
-
-/* Describes an instruction that inserts or extracts a bitfield. */
-struct extraction_insn
-{
- /* The code of the instruction. */
- enum insn_code icode;
-
- /* The mode that the structure operand should have. This is byte_mode
- when using the legacy insv, extv and extzv patterns to access memory. */
- machine_mode struct_mode;
-
- /* The mode of the field to be inserted or extracted, and by extension
- the mode of the insertion or extraction itself. */
- machine_mode field_mode;
-
- /* The mode of the field's bit position. This is only important
- when the position is variable rather than constant. */
- machine_mode pos_mode;
-};
-
-
-
-
/* Describes the type of an expand_operand. Each value is associated
with a create_*_operand function; see the comments above those
functions for details. */
};
/* Information about an operand for instruction expansion. */
-struct expand_operand {
+class expand_operand {
+public:
/* The type of operand. */
ENUM_BITFIELD (expand_operand_type) type : 8;
rather than signed. Only meaningful for certain types. */
unsigned int unsigned_p : 1;
+ /* Is the target operand. */
+ unsigned int target : 1;
+
/* Unused; available for future use. */
- unsigned int unused : 7;
+ unsigned int unused : 6;
/* The mode passed to the convert_*_operand function. It has a
type-dependent meaning. */
/* The value of the operand. */
rtx value;
+
+ /* The value of an EXPAND_INTEGER operand. */
+ poly_int64 int_value;
};
/* Initialize OP with the given fields. Initialise the other fields
to their default values. */
static inline void
-create_expand_operand (struct expand_operand *op,
+create_expand_operand (class expand_operand *op,
enum expand_operand_type type,
rtx value, machine_mode mode,
- bool unsigned_p)
+ bool unsigned_p, poly_int64 int_value = 0)
{
op->type = type;
op->unsigned_p = unsigned_p;
+ op->target = 0;
op->unused = 0;
op->mode = mode;
op->value = value;
+ op->int_value = int_value;
}
/* Make OP describe an operand that must use rtx X, even if X is volatile. */
static inline void
-create_fixed_operand (struct expand_operand *op, rtx x)
+create_fixed_operand (class expand_operand *op, rtx x)
{
create_expand_operand (op, EXPAND_FIXED, x, VOIDmode, false);
}
be ignored in that case. */
static inline void
-create_output_operand (struct expand_operand *op, rtx x,
+create_output_operand (class expand_operand *op, rtx x,
machine_mode mode)
{
create_expand_operand (op, EXPAND_OUTPUT, x, mode, false);
as an operand. */
static inline void
-create_input_operand (struct expand_operand *op, rtx value,
+create_input_operand (class expand_operand *op, rtx value,
machine_mode mode)
{
create_expand_operand (op, EXPAND_INPUT, value, mode, false);
to mode MODE. UNSIGNED_P says whether VALUE is unsigned. */
static inline void
-create_convert_operand_to (struct expand_operand *op, rtx value,
+create_convert_operand_to (class expand_operand *op, rtx value,
machine_mode mode, bool unsigned_p)
{
create_expand_operand (op, EXPAND_CONVERT_TO, value, mode, unsigned_p);
/* Make OP describe an input operand that should have the same value
as VALUE, after any mode conversion that the backend might request.
If VALUE is a CONST_INT, it should be treated as having mode MODE.
- UNSIGNED_P says whether VALUE is unsigned. */
+ UNSIGNED_P says whether VALUE is unsigned.
+
+ The conversion of VALUE can include a combination of numerical
+ conversion (as for convert_modes) and duplicating a scalar to fill
+ a vector (if VALUE is a scalar but the operand is a vector). */
static inline void
-create_convert_operand_from (struct expand_operand *op, rtx value,
+create_convert_operand_from (class expand_operand *op, rtx value,
machine_mode mode, bool unsigned_p)
{
create_expand_operand (op, EXPAND_CONVERT_FROM, value, mode, unsigned_p);
of the address, but it may need to be converted to Pmode first. */
static inline void
-create_address_operand (struct expand_operand *op, rtx value)
+create_address_operand (class expand_operand *op, rtx value)
{
create_expand_operand (op, EXPAND_ADDRESS, value, Pmode, false);
}
-/* Make OP describe an input operand that has value INTVAL and that has
- no inherent mode. This function should only be used for operands that
- are always expand-time constants. The backend may request that INTVAL
- be copied into a different kind of rtx, but it must specify the mode
- of that rtx if so. */
-
-static inline void
-create_integer_operand (struct expand_operand *op, HOST_WIDE_INT intval)
-{
- create_expand_operand (op, EXPAND_INTEGER, GEN_INT (intval), VOIDmode, false);
-}
-
-
-extern rtx convert_optab_libfunc (convert_optab optab, machine_mode mode1,
- machine_mode mode2);
-extern rtx optab_libfunc (optab optab, machine_mode mode);
-extern enum insn_code widening_optab_handler (optab, machine_mode,
- machine_mode);
-/* Find a widening optab even if it doesn't widen as much as we want. */
-#define find_widening_optab_handler(A,B,C,D) \
- find_widening_optab_handler_and_mode (A, B, C, D, NULL)
-extern enum insn_code find_widening_optab_handler_and_mode (optab,
- machine_mode,
- machine_mode,
- int,
- machine_mode *);
-
-/* An extra flag to control optab_for_tree_code's behavior. This is needed to
- distinguish between machines with a vector shift that takes a scalar for the
- shift amount vs. machines that take a vector for the shift amount. */
-enum optab_subtype
-{
- optab_default,
- optab_scalar,
- optab_vector
-};
+extern void create_integer_operand (class expand_operand *, poly_int64);
/* Passed to expand_simple_binop and expand_binop to say which options
to try to use if the requested operation can't be open-coded on the
OPTAB_MUST_WIDEN
};
-/* Return the optab used for computing the given operation on the type given by
- the second argument. The third argument distinguishes between the types of
- vector shifts and rotates */
-extern optab optab_for_tree_code (enum tree_code, const_tree, enum optab_subtype);
-
-/* Given an optab that reduces a vector to a scalar, find instead the old
- optab that produces a vector with the reduction result in one element,
- for a tree with the specified type. */
-extern optab scalar_reduc_to_vector (optab, const_tree type);
-
extern rtx expand_widen_pattern_expr (struct separate_ops *, rtx , rtx , rtx,
rtx, int);
extern rtx expand_ternary_op (machine_mode mode, optab ternary_optab,
enum optab_methods methods);
extern bool force_expand_binop (machine_mode, optab, rtx, rtx, rtx, int,
enum optab_methods);
-/* Generate code for VEC_RSHIFT_EXPR. */
-extern rtx expand_vec_shift_expr (struct separate_ops *, rtx);
+extern rtx expand_vector_broadcast (machine_mode, rtx);
/* Generate code for a simple binary or unary operation. "Simple" in
this case means "can be unambiguously described by a (mode, code)
extern void emit_unop_insn (enum insn_code, rtx, rtx, enum rtx_code);
/* Emit code to make a call to a constant function or a library call. */
-extern void emit_libcall_block (rtx, rtx, rtx, rtx);
+extern void emit_libcall_block (rtx_insn *, rtx, rtx, rtx);
/* The various uses that a comparison can have; used by can_compare_p:
jumps, conditional moves, store flag operations. */
(without splitting it into pieces). */
extern int can_compare_p (enum rtx_code, machine_mode,
enum can_compare_purpose);
+
+/* Return whether the backend can emit a vector comparison for code CODE,
+ comparing operands of mode CMP_OP_MODE and producing a result with
+ VALUE_MODE. */
+extern bool can_vcond_compare_p (enum rtx_code, machine_mode, machine_mode);
+
extern rtx prepare_operand (enum insn_code, rtx, int, machine_mode,
machine_mode, int);
/* Emit a pair of rtl insns to compare two rtx's and to jump
to a label if the comparison is true. */
extern void emit_cmp_and_jump_insns (rtx, rtx, enum rtx_code, rtx,
- machine_mode, int, rtx, int prob=-1);
+ machine_mode, int, rtx,
+ profile_probability prob
+ = profile_probability::uninitialized ());
/* Generate code to indirectly jump to a location given in the rtx LOC. */
extern void emit_indirect_jump (rtx);
#error "insn-config.h must be included before optabs.h"
#endif
-#ifdef HAVE_conditional_move
/* Emit a conditional move operation. */
rtx emit_conditional_move (rtx, enum rtx_code, rtx, rtx, machine_mode,
rtx, rtx, machine_mode, int);
-/* Return nonzero if the conditional move is supported. */
-int can_conditionally_move_p (machine_mode mode);
+/* Emit a conditional negate or bitwise complement operation. */
+rtx emit_conditional_neg_or_complement (rtx, rtx_code, machine_mode, rtx,
+ rtx, rtx);
-#endif
rtx emit_conditional_add (rtx, enum rtx_code, rtx, rtx, machine_mode,
rtx, rtx, machine_mode, int);
/* Create but don't emit one rtl instruction to perform certain operations.
Modes must match; operands must meet the operation's predicates.
Likewise for subtraction and for just copying. */
-extern rtx gen_add2_insn (rtx, rtx);
-extern rtx gen_add3_insn (rtx, rtx, rtx);
+extern rtx_insn *gen_add2_insn (rtx, rtx);
+extern rtx_insn *gen_add3_insn (rtx, rtx, rtx);
extern int have_add2_insn (rtx, rtx);
-extern rtx gen_addptr3_insn (rtx, rtx, rtx);
+extern rtx_insn *gen_addptr3_insn (rtx, rtx, rtx);
extern int have_addptr3_insn (rtx, rtx, rtx);
-extern rtx gen_sub2_insn (rtx, rtx);
-extern rtx gen_sub3_insn (rtx, rtx, rtx);
+extern rtx_insn *gen_sub2_insn (rtx, rtx);
+extern rtx_insn *gen_sub3_insn (rtx, rtx, rtx);
extern int have_sub2_insn (rtx, rtx);
-/* Return the INSN_CODE to use for an extend operation. */
-extern enum insn_code can_extend_p (machine_mode, 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, machine_mode,
- machine_mode, int);
-
-/* Return the insn_code for a FLOAT_EXPR. */
-enum insn_code can_float_p (machine_mode, machine_mode, int);
-
-/* Check whether an operation represented by the code CODE is a
- convert operation that is supported by the target platform in
- vector form */
-bool supportable_convert_operation (enum tree_code, tree, tree, tree *,
- enum tree_code *);
+extern rtx_insn *gen_extend_insn (rtx, rtx, machine_mode, machine_mode, int);
/* Generate code for a FLOAT_EXPR. */
extern void expand_float (rtx, rtx, int);
perform the operation described by CODE and MODE. */
extern int have_insn_for (enum rtx_code, machine_mode);
-extern void gen_int_libfunc (optab, const char *, char, machine_mode);
-extern void gen_fp_libfunc (optab, const char *, char, machine_mode);
-extern void gen_fixed_libfunc (optab, const char *, char, machine_mode);
-extern void gen_signed_fixed_libfunc (optab, const char *, char,
- machine_mode);
-extern void gen_unsigned_fixed_libfunc (optab, const char *, char,
- machine_mode);
-extern void gen_int_fp_libfunc (optab, const char *, char, machine_mode);
-extern void gen_intv_fp_libfunc (optab, const char *, char, machine_mode);
-extern void gen_int_fp_fixed_libfunc (optab, const char *, char,
- machine_mode);
-extern void gen_int_fp_signed_fixed_libfunc (optab, const char *, char,
- machine_mode);
-extern void gen_int_fixed_libfunc (optab, const char *, char,
- machine_mode);
-extern void gen_int_signed_fixed_libfunc (optab, const char *, char,
- machine_mode);
-extern void gen_int_unsigned_fixed_libfunc (optab, const char *, char,
- machine_mode);
-
-extern void gen_interclass_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_int_to_fp_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_ufloat_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_int_to_fp_nondecimal_conv_libfunc (convert_optab,
- const char *,
- machine_mode,
- machine_mode);
-extern void gen_fp_to_int_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_intraclass_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_trunc_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_extend_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_fract_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_fractuns_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_satfract_conv_libfunc (convert_optab, const char *,
- machine_mode, machine_mode);
-extern void gen_satfractuns_conv_libfunc (convert_optab, const char *,
- machine_mode,
- machine_mode);
-
-/* Build a decl for a libfunc named NAME. */
-extern tree build_libfunc_function (const char *);
-
-/* Call this to initialize an optab function entry. */
-extern rtx init_one_libfunc (const char *);
-extern rtx set_user_assembler_libfunc (const char *, const char *);
-
-/* Call this to reset the function entry for one optab. */
-extern void set_optab_libfunc (optab, machine_mode, const char *);
-extern void set_conv_libfunc (convert_optab, machine_mode,
- machine_mode, const char *);
-
-/* Call this once to initialize the contents of the optabs
- appropriately for the current target machine. */
-extern void init_optabs (void);
-extern void init_tree_optimization_optabs (tree);
-
-/* Call this to install all of the __sync libcalls up to size MAX. */
-extern void init_sync_libfuncs (int max);
-
/* Generate a conditional trap instruction. */
-extern rtx gen_cond_trap (enum rtx_code, rtx, rtx, rtx);
-
-/* Return true if target supports vector operations for VEC_PERM_EXPR. */
-extern bool can_vec_perm_p (machine_mode, bool, const unsigned char *);
+extern rtx_insn *gen_cond_trap (enum rtx_code, rtx, rtx, rtx);
/* Generate code for VEC_PERM_EXPR. */
-extern rtx expand_vec_perm (machine_mode, rtx, rtx, rtx, rtx);
+extern rtx expand_vec_perm_var (machine_mode, rtx, rtx, rtx, rtx);
+extern rtx expand_vec_perm_const (machine_mode, rtx, rtx,
+ const vec_perm_builder &, machine_mode, rtx);
-/* Return tree if target supports vector operations for COND_EXPR. */
-bool expand_vec_cond_expr_p (tree, tree);
+/* Generate code for vector comparison. */
+extern rtx expand_vec_cmp_expr (tree, tree, rtx);
/* Generate code for VEC_COND_EXPR. */
extern rtx expand_vec_cond_expr (tree, tree, tree, tree, rtx);
-/* Return non-zero if target supports a given highpart multiplication. */
-extern int can_mult_highpart_p (machine_mode, bool);
+/* Generate code for VEC_SERIES_EXPR. */
+extern rtx expand_vec_series_expr (machine_mode, rtx, rtx, rtx);
/* Generate code for MULT_HIGHPART_EXPR. */
extern rtx expand_mult_highpart (machine_mode, rtx, rtx, rtx, bool);
-/* Return true if target supports vector masked load/store for mode. */
-extern bool can_vec_mask_load_store_p (machine_mode, bool);
-
-/* Return true if there is an inline compare and swap pattern. */
-extern bool can_compare_and_swap_p (machine_mode, bool);
-
-/* Return true if there is an inline atomic exchange pattern. */
-extern bool can_atomic_exchange_p (machine_mode, bool);
-
extern rtx expand_sync_lock_test_and_set (rtx, rtx, rtx);
extern rtx expand_atomic_test_and_set (rtx, rtx, enum memmodel);
extern rtx expand_atomic_exchange (rtx, rtx, rtx, enum memmodel);
extern bool insn_operand_matches (enum insn_code icode, unsigned int opno,
rtx operand);
extern bool valid_multiword_target_p (rtx);
-extern void create_convert_operand_from_type (struct expand_operand *op,
+extern void create_convert_operand_from_type (class expand_operand *op,
rtx value, tree type);
extern bool maybe_legitimize_operands (enum insn_code icode,
unsigned int opno, unsigned int nops,
- struct expand_operand *ops);
-extern rtx maybe_gen_insn (enum insn_code icode, unsigned int nops,
- struct expand_operand *ops);
+ class expand_operand *ops);
+extern rtx_insn *maybe_gen_insn (enum insn_code icode, unsigned int nops,
+ class expand_operand *ops);
extern bool maybe_expand_insn (enum insn_code icode, unsigned int nops,
- struct expand_operand *ops);
+ class expand_operand *ops);
extern bool maybe_expand_jump_insn (enum insn_code icode, unsigned int nops,
- struct expand_operand *ops);
+ class expand_operand *ops);
extern void expand_insn (enum insn_code icode, unsigned int nops,
- struct expand_operand *ops);
+ class expand_operand *ops);
extern void expand_jump_insn (enum insn_code icode, unsigned int nops,
- struct expand_operand *ops);
-
-/* Enumerates the possible extraction_insn operations. */
-enum extraction_pattern { EP_insv, EP_extv, EP_extzv };
-
-extern bool get_best_reg_extraction_insn (extraction_insn *,
- enum extraction_pattern,
- unsigned HOST_WIDE_INT,
- machine_mode);
-extern bool get_best_mem_extraction_insn (extraction_insn *,
- enum extraction_pattern,
- HOST_WIDE_INT, HOST_WIDE_INT,
- machine_mode);
+ class expand_operand *ops);
-extern bool lshift_cheap_p (bool);
+extern enum rtx_code get_rtx_code (enum tree_code tcode, bool unsignedp);
#endif /* GCC_OPTABS_H */
projects / thirdparty / gcc.git / blobdiff