/* Register Transfer Language (RTL) definitions for GCC
- Copyright (C) 1987-2019 Free Software Foundation, Inc.
+ Copyright (C) 1987-2023 Free Software Foundation, Inc.
This file is part of GCC.
#include "hard-reg-set.h"
+class predefined_function_abi;
+
/* Value used by some passes to "recognize" noop moves as valid
instructions. */
#define NOOP_MOVE_INSN_CODE INT_MAX
# define NON_GENERATOR_NUM_RTX_CODE ((int) MATCH_OPERAND)
#endif
+#define RTX_CODE_BITSIZE 8
+
/* Register Transfer Language EXPRESSIONS CODE CLASSES */
enum rtx_class {
tree rt_tree;
basic_block rt_bb;
mem_attrs *rt_mem;
- struct constant_descriptor_rtx *rt_constant;
+ class constant_descriptor_rtx *rt_constant;
struct dw_cfi_node *rt_cfi;
};
struct GTY((desc("0"), tag("0"),
chain_next ("RTX_NEXT (&%h)"),
chain_prev ("RTX_PREV (&%h)"))) rtx_def {
- /* The kind of expression this is. */
- ENUM_BITFIELD(rtx_code) code: 16;
-
/* The kind of value the expression has. */
- ENUM_BITFIELD(machine_mode) mode : 8;
+ ENUM_BITFIELD(machine_mode) mode : MACHINE_MODE_BITSIZE;
+
+ /* The kind of expression this is. */
+ ENUM_BITFIELD(rtx_code) code: RTX_CODE_BITSIZE;
/* 1 in a MEM if we should keep the alias set for this mem unchanged
when we access a component.
1 in a CALL_INSN if it is a sibling call.
1 in a SET that is for a return.
In a CODE_LABEL, part of the two-bit alternate entry field.
- 1 in a CONCAT is VAL_EXPR_IS_COPIED in var-tracking.c.
- 1 in a VALUE is SP_BASED_VALUE_P in cselib.c.
+ 1 in a CONCAT is VAL_EXPR_IS_COPIED in var-tracking.cc.
+ 1 in a VALUE is SP_BASED_VALUE_P in cselib.cc.
1 in a SUBREG generated by LRA for reload insns.
1 in a REG if this is a static chain register.
Dumped as "/j" in RTL dumps. */
1 in a MEM if it cannot trap.
1 in a CALL_INSN logically equivalent to
ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P.
+ 1 in a VALUE is SP_DERIVED_VALUE_P in cselib.cc.
Dumped as "/c" in RTL dumps. */
unsigned int call : 1;
/* 1 in a REG, MEM, or CONCAT if the value is set at most once, anywhere.
1 in a CALL_INSN logically equivalent to ECF_CONST and TREE_READONLY.
1 in a NOTE, or EXPR_LIST for a const call.
1 in a JUMP_INSN of an annulling branch.
- 1 in a CONCAT is VAL_EXPR_IS_CLOBBERED in var-tracking.c.
- 1 in a preserved VALUE is PRESERVED_VALUE_P in cselib.c.
+ 1 in a CONCAT is VAL_EXPR_IS_CLOBBERED in var-tracking.cc.
+ 1 in a preserved VALUE is PRESERVED_VALUE_P in cselib.cc.
1 in a clobber temporarily created for LRA.
Dumped as "/u" in RTL dumps. */
unsigned int unchanging : 1;
In a SYMBOL_REF, this flag is used for machine-specific purposes.
In a PREFETCH, this flag indicates that it should be considered a
scheduling barrier.
- 1 in a CONCAT is VAL_NEEDS_RESOLUTION in var-tracking.c.
+ 1 in a CONCAT is VAL_NEEDS_RESOLUTION in var-tracking.cc.
Dumped as "/v" in RTL dumps. */
unsigned int volatil : 1;
/* 1 in a REG if the register is used only in exit code a loop.
in `leaf_renumber_regs_insn'.
1 in a SYMBOL_REF, means that emit_library_call
has used it as the function.
- 1 in a CONCAT is VAL_HOLDS_TRACK_EXPR in var-tracking.c.
- 1 in a VALUE or DEBUG_EXPR is VALUE_RECURSED_INTO in var-tracking.c. */
+ 1 in a CONCAT is VAL_HOLDS_TRACK_EXPR in var-tracking.cc.
+ 1 in a VALUE or DEBUG_EXPR is VALUE_RECURSED_INTO in var-tracking.cc. */
unsigned int used : 1;
/* 1 in an INSN or a SET if this rtx is related to the call frame,
either changing how we compute the frame address or saving and
1 in a REG or MEM if it is a pointer.
1 in a SYMBOL_REF if it addresses something in the per-function
constant string pool.
- 1 in a VALUE is VALUE_CHANGED in var-tracking.c.
+ 1 in a VALUE is VALUE_CHANGED in var-tracking.cc.
Dumped as "/f" in RTL dumps. */
unsigned frame_related : 1;
/* 1 in a REG or PARALLEL that is the current function's return value.
1 in a SYMBOL_REF for a weak symbol.
1 in a CALL_INSN logically equivalent to ECF_PURE and DECL_PURE_P.
- 1 in a CONCAT is VAL_EXPR_HAS_REVERSE in var-tracking.c.
- 1 in a VALUE or DEBUG_EXPR is NO_LOC_P in var-tracking.c.
+ 1 in a CONCAT is VAL_EXPR_HAS_REVERSE in var-tracking.cc.
+ 1 in a VALUE or DEBUG_EXPR is NO_LOC_P in var-tracking.cc.
Dumped as "/i" in RTL dumps. */
unsigned return_val : 1;
#define CONST_DOUBLE_AS_FLOAT_P(X) \
(GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != VOIDmode)
+/* Predicate yielding nonzero iff X is an rtx for a constant vector. */
+#define CONST_VECTOR_P(X) (GET_CODE (X) == CONST_VECTOR)
+
/* Predicate yielding nonzero iff X is a label insn. */
#define LABEL_P(X) (GET_CODE (X) == CODE_LABEL)
/* Predicate yielding nonzero iff X is a call insn. */
#define CALL_P(X) (GET_CODE (X) == CALL_INSN)
+/* 1 if RTX is a call_insn for a fake call.
+ CALL_INSN use "used" flag to indicate it's a fake call. */
+#define FAKE_CALL_P(RTX) \
+ (RTL_FLAG_CHECK1 ("FAKE_CALL_P", (RTX), CALL_INSN)->used)
+
/* Predicate yielding nonzero iff X is an insn that cannot jump. */
#define NONJUMP_INSN_P(X) (GET_CODE (X) == INSN)
#define GET_REG_NOTE_NAME(MODE) (reg_note_name[(int) (MODE)])
/* This field is only present on CALL_INSNs. It holds a chain of EXPR_LIST of
- USE and CLOBBER expressions.
+ USE, CLOBBER and SET expressions.
USE expressions list the registers filled with arguments that
are passed to the function.
CLOBBER expressions document the registers explicitly clobbered
by this CALL_INSN.
+ SET expressions say that the return value of the call (the SET_DEST)
+ is equivalent to a value available before the call (the SET_SRC).
+ This kind of SET is used when the return value is predictable in
+ advance. It is purely an optimisation hint; unlike USEs and CLOBBERs,
+ it does not affect register liveness.
+
Pseudo registers cannot be mentioned in this list. */
#define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 7)
in the input source code. */
#define LABEL_NAME(RTX) XCSTR (RTX, 6, CODE_LABEL)
-/* In jump.c, each label contains a count of the number
+/* In jump.cc, each label contains a count of the number
of LABEL_REFs that point at it, so unused labels can be deleted. */
#define LABEL_NUSES(RTX) XCINT (RTX, 4, CODE_LABEL)
#define LABEL_ALT_ENTRY_P(LABEL) (LABEL_KIND (LABEL) != LABEL_NORMAL)
-/* In jump.c, each JUMP_INSN can point to a label that it can jump to,
+/* In jump.cc, each JUMP_INSN can point to a label that it can jump to,
so that if the JUMP_INSN is deleted, the label's LABEL_NUSES can
be decremented and possibly the label can be deleted. */
#define JUMP_LABEL(INSN) XCEXP (INSN, 7, JUMP_INSN)
#define LABEL_REFS(LABEL) XCEXP (LABEL, 3, CODE_LABEL)
/* Get the label that a LABEL_REF references. */
-static inline rtx_insn *
+inline rtx_insn *
label_ref_label (const_rtx ref)
{
return as_a<rtx_insn *> (XCEXP (ref, 0, LABEL_REF));
/* Set the label that LABEL_REF ref refers to. */
-static inline void
+inline void
set_label_ref_label (rtx ref, rtx_insn *label)
{
XCEXP (ref, 0, LABEL_REF) = label;
(RTL_FLAG_CHECK1 ("ORIGINAL_REGNO", (RTX), REG)->u2.original_regno)
/* Force the REGNO macro to only be used on the lhs. */
-static inline unsigned int
+inline unsigned int
rhs_regno (const_rtx x)
{
return REG_CHECK (x)->regno;
}
/* Return the final register in REG X plus one. */
-static inline unsigned int
+inline unsigned int
END_REGNO (const_rtx x)
{
return REGNO (x) + REG_NREGS (x);
/* Change the REGNO and REG_NREGS of REG X to the specified values,
bypassing the df machinery. */
-static inline void
+inline void
set_regno_raw (rtx x, unsigned int regno, unsigned int nregs)
{
reg_info *reg = REG_CHECK (x);
(RTL_FLAG_CHECK1 ("MEM_POINTER", (RTX), MEM)->frame_related)
/* 1 if the given register REG corresponds to a hard register. */
-#define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG)))
+#define HARD_REGISTER_P(REG) HARD_REGISTER_NUM_P (REGNO (REG))
/* 1 if the given register number REG_NO corresponds to a hard register. */
#define HARD_REGISTER_NUM_P(REG_NO) ((REG_NO) < FIRST_PSEUDO_REGISTER)
+/* 1 if the given register REG corresponds to a virtual register. */
+#define VIRTUAL_REGISTER_P(REG) VIRTUAL_REGISTER_NUM_P (REGNO (REG))
+
+/* 1 if the given register number REG_NO corresponds to a virtual register. */
+#define VIRTUAL_REGISTER_NUM_P(REG_NO) \
+ IN_RANGE (REG_NO, FIRST_VIRTUAL_REGISTER, LAST_VIRTUAL_REGISTER)
+
/* For a CONST_INT rtx, INTVAL extracts the integer. */
#define INTVAL(RTX) XCWINT (RTX, 0, CONST_INT)
#define UINTVAL(RTX) ((unsigned HOST_WIDE_INT) INTVAL (RTX))
#define SUBREG_REG(RTX) XCEXP (RTX, 0, SUBREG)
#define SUBREG_BYTE(RTX) XCSUBREG (RTX, 1, SUBREG)
-/* in rtlanal.c */
+/* in rtlanal.cc */
/* Return the right cost to give to an operation
to make the cost of the corresponding register-to-register instruction
N times that of a fast register-to-register instruction. */
/* Return true if CODE always has VOIDmode. */
-static inline bool
+inline bool
always_void_p (enum rtx_code code)
{
return code == SET;
};
/* Initialize a full_rtx_costs structure C to the maximum cost. */
-static inline void
+inline void
init_costs_to_max (struct full_rtx_costs *c)
{
c->speed = MAX_COST;
}
/* Initialize a full_rtx_costs structure C to zero cost. */
-static inline void
+inline void
init_costs_to_zero (struct full_rtx_costs *c)
{
c->speed = 0;
/* Compare two full_rtx_costs structures A and B, returning true
if A < B when optimizing for speed. */
-static inline bool
+inline bool
costs_lt_p (struct full_rtx_costs *a, struct full_rtx_costs *b,
bool speed)
{
/* Increase both members of the full_rtx_costs structure C by the
cost of N insns. */
-static inline void
+inline void
costs_add_n_insns (struct full_rtx_costs *c, int n)
{
c->speed += COSTS_N_INSNS (n);
inline unsigned HOST_WIDE_INT
subreg_shape::unique_id () const
{
- { STATIC_ASSERT (MAX_MACHINE_MODE <= 256); }
+ { STATIC_ASSERT (MAX_MACHINE_MODE <= (1 << MACHINE_MODE_BITSIZE)); }
{ STATIC_ASSERT (NUM_POLY_INT_COEFFS <= 3); }
{ STATIC_ASSERT (sizeof (offset.coeffs[0]) <= 2); }
int res = (int) inner_mode + ((int) outer_mode << 8);
/* Return the shape of a SUBREG rtx. */
-static inline subreg_shape
+inline subreg_shape
shape_of_subreg (const_rtx x)
{
return subreg_shape (GET_MODE (SUBREG_REG (x)),
extern int address_cost (rtx, machine_mode, addr_space_t, bool);
extern void get_full_rtx_cost (rtx, machine_mode, enum rtx_code, int,
struct full_rtx_costs *);
+extern bool native_encode_rtx (machine_mode, rtx, vec<target_unit> &,
+ unsigned int, unsigned int);
+extern rtx native_decode_rtx (machine_mode, const vec<target_unit> &,
+ unsigned int);
+extern rtx native_decode_vector_rtx (machine_mode, const vec<target_unit> &,
+ unsigned int, unsigned int, unsigned int);
extern poly_uint64 subreg_lsb (const_rtx);
-extern poly_uint64 subreg_lsb_1 (machine_mode, machine_mode, poly_uint64);
+extern poly_uint64 subreg_size_lsb (poly_uint64, poly_uint64, poly_uint64);
extern poly_uint64 subreg_size_offset_from_lsb (poly_uint64, poly_uint64,
poly_uint64);
extern bool read_modify_subreg_p (const_rtx);
+/* Given a subreg's OUTER_MODE, INNER_MODE, and SUBREG_BYTE, return the
+ bit offset at which the subreg begins (counting from the least significant
+ bit of the operand). */
+
+inline poly_uint64
+subreg_lsb_1 (machine_mode outer_mode, machine_mode inner_mode,
+ poly_uint64 subreg_byte)
+{
+ return subreg_size_lsb (GET_MODE_SIZE (outer_mode),
+ GET_MODE_SIZE (inner_mode), subreg_byte);
+}
+
/* Return the subreg byte offset for a subreg whose outer mode is
OUTER_MODE, whose inner mode is INNER_MODE, and where there are
LSB_SHIFT *bits* between the lsb of the outer value and the lsb of
extern unsigned int subreg_regno (const_rtx);
extern int simplify_subreg_regno (unsigned int, machine_mode,
poly_uint64, machine_mode);
+extern int lowpart_subreg_regno (unsigned int, machine_mode,
+ machine_mode);
extern unsigned int subreg_nregs (const_rtx);
extern unsigned int subreg_nregs_with_regno (unsigned int, const_rtx);
extern unsigned HOST_WIDE_INT nonzero_bits (const_rtx, machine_mode);
/* For a SET rtx, SET_DEST is the place that is set
and SET_SRC is the value it is set to. */
-#define SET_DEST(RTX) XC3EXP (RTX, 0, SET, CLOBBER, CLOBBER_HIGH)
+#define SET_DEST(RTX) XC2EXP (RTX, 0, SET, CLOBBER)
#define SET_SRC(RTX) XCEXP (RTX, 1, SET)
#define SET_IS_RETURN_P(RTX) \
(RTL_FLAG_CHECK1 ("SET_IS_RETURN_P", (RTX), SET)->jump)
(RTL_FLAG_CHECK1 ("CONSTANT_POOL_ADDRESS_P", (RTX), SYMBOL_REF)->unchanging)
/* 1 if RTX is a symbol_ref that addresses a value in the file's
- tree constant pool. This information is private to varasm.c. */
+ tree constant pool. This information is private to varasm.cc. */
#define TREE_CONSTANT_POOL_ADDRESS_P(RTX) \
(RTL_FLAG_CHECK1 ("TREE_CONSTANT_POOL_ADDRESS_P", \
(RTX), SYMBOL_REF)->frame_related)
/* Return the cost of SET X. SPEED_P is true if optimizing for speed
rather than size. */
-static inline int
+inline int
set_rtx_cost (rtx x, bool speed_p)
{
return rtx_cost (x, VOIDmode, INSN, 4, speed_p);
/* Like set_rtx_cost, but return both the speed and size costs in C. */
-static inline void
+inline void
get_full_set_rtx_cost (rtx x, struct full_rtx_costs *c)
{
get_full_rtx_cost (x, VOIDmode, INSN, 4, c);
of a register move. SPEED_P is true if optimizing for speed rather
than size. */
-static inline int
+inline int
set_src_cost (rtx x, machine_mode mode, bool speed_p)
{
return rtx_cost (x, mode, SET, 1, speed_p);
/* Like set_src_cost, but return both the speed and size costs in C. */
-static inline void
+inline void
get_full_set_src_cost (rtx x, machine_mode mode, struct full_rtx_costs *c)
{
get_full_rtx_cost (x, mode, SET, 1, c);
&& IN_RANGE ((SIZE), 1, (unsigned HOST_WIDE_INT) (RANGE) \
- (unsigned HOST_WIDE_INT)(POS)))
-/* In explow.c */
+/* In explow.cc */
extern HOST_WIDE_INT trunc_int_for_mode (HOST_WIDE_INT, machine_mode);
extern poly_int64 trunc_int_for_mode (poly_int64, machine_mode);
extern rtx plus_constant (machine_mode, rtx, poly_int64, bool = false);
extern HOST_WIDE_INT get_stack_check_protect (void);
-/* In rtl.c */
+/* In rtl.cc */
extern rtx rtx_alloc (RTX_CODE CXX_MEM_STAT_INFO);
+inline rtx
+rtx_init (rtx rt, RTX_CODE code)
+{
+ memset (rt, 0, RTX_HDR_SIZE);
+ PUT_CODE (rt, code);
+ return rt;
+}
+#define rtx_alloca(code) \
+ rtx_init ((rtx) alloca (RTX_CODE_SIZE ((code))), (code))
extern rtx rtx_alloc_stat_v (RTX_CODE MEM_STAT_DECL, int);
#define rtx_alloc_v(c, SZ) rtx_alloc_stat_v (c MEM_STAT_INFO, SZ)
#define const_wide_int_alloc(NWORDS) \
(sizeof (struct hwivec_def) \
+ ((NWORDS)-1) * sizeof (HOST_WIDE_INT))) \
-extern rtvec rtvec_alloc (int);
+extern rtvec rtvec_alloc (size_t);
extern rtvec shallow_copy_rtvec (rtvec);
extern bool shared_const_p (const_rtx);
extern rtx copy_rtx (rtx);
extern enum rtx_code classify_insn (rtx);
extern void dump_rtx_statistics (void);
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern rtx copy_rtx_if_shared (rtx);
-/* In rtl.c */
+/* In rtl.cc */
extern unsigned int rtx_size (const_rtx);
extern rtx shallow_copy_rtx (const_rtx CXX_MEM_STAT_INFO);
extern int rtx_equal_p (const_rtx, const_rtx);
extern bool rtvec_all_equal_p (const_rtvec);
+extern bool rtvec_series_p (rtvec, int);
/* Return true if X is a vector constant with a duplicated element value. */
return x;
}
-/* In emit-rtl.c. */
+/* In emit-rtl.cc. */
extern wide_int const_vector_int_elt (const_rtx, unsigned int);
extern rtx const_vector_elt (const_rtx, unsigned int);
extern bool const_vec_series_p_1 (const_rtx, rtx *, rtx *);
return const_vec_series_p (x, base_out, step_out);
}
+/* Return true if CONST_VECTORs X and Y, which are known to have the same mode,
+ also have the same encoding. This means that they are equal whenever their
+ operands are equal. */
+
+inline bool
+same_vector_encodings_p (const_rtx x, const_rtx y)
+{
+ /* Don't be fussy about the encoding of constant-length vectors,
+ since XVECEXP (X, 0) and XVECEXP (Y, 0) list all the elements anyway. */
+ if (poly_uint64 (CONST_VECTOR_NUNITS (x)).is_constant ())
+ return true;
+
+ return (CONST_VECTOR_NPATTERNS (x) == CONST_VECTOR_NPATTERNS (y)
+ && (CONST_VECTOR_NELTS_PER_PATTERN (x)
+ == CONST_VECTOR_NELTS_PER_PATTERN (y)));
+}
+
/* Return the unpromoted (outer) mode of SUBREG_PROMOTED_VAR_P subreg X. */
inline scalar_int_mode
return as_a <scalar_int_mode> (GET_MODE (SUBREG_REG (x)));
}
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern rtvec gen_rtvec_v (int, rtx *);
extern rtvec gen_rtvec_v (int, rtx_insn **);
extern rtx gen_reg_rtx (machine_mode);
extern rtx_code_label *gen_label_rtx (void);
extern rtx gen_lowpart_common (machine_mode, rtx);
-/* In cse.c */
+/* In cse.cc */
extern rtx gen_lowpart_if_possible (machine_mode, rtx);
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern rtx gen_highpart (machine_mode, rtx);
extern rtx gen_highpart_mode (machine_mode, machine_mode, rtx);
extern rtx operand_subword (rtx, poly_uint64, int, machine_mode);
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern rtx operand_subword_force (rtx, poly_uint64, machine_mode);
-extern int subreg_lowpart_p (const_rtx);
+extern bool subreg_lowpart_p (const_rtx);
extern poly_uint64 subreg_size_lowpart_offset (poly_uint64, poly_uint64);
/* Return true if a subreg of mode OUTERMODE would only access part of
#endif
extern rtx immed_wide_int_const (const poly_wide_int_ref &, machine_mode);
-/* In varasm.c */
+/* In varasm.cc */
extern rtx force_const_mem (machine_mode, rtx);
-/* In varasm.c */
+/* In varasm.cc */
struct function;
extern rtx get_pool_constant (const_rtx);
extern rtx simplify_subtraction (rtx);
extern void decide_function_section (tree);
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern rtx_insn *emit_insn_before (rtx, rtx_insn *);
extern rtx_insn *emit_insn_before_noloc (rtx, rtx_insn *, basic_block);
extern rtx_insn *emit_insn_before_setloc (rtx, rtx_insn *, location_t);
extern rtx_insn *next_real_nondebug_insn (rtx);
extern rtx_insn *prev_active_insn (rtx_insn *);
extern rtx_insn *next_active_insn (rtx_insn *);
-extern int active_insn_p (const rtx_insn *);
-extern rtx_insn *next_cc0_user (rtx_insn *);
-extern rtx_insn *prev_cc0_setter (rtx_insn *);
+extern bool active_insn_p (const rtx_insn *);
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern int insn_line (const rtx_insn *);
extern const char * insn_file (const rtx_insn *);
extern tree insn_scope (const rtx_insn *);
extern expanded_location insn_location (const rtx_insn *);
+extern int insn_discriminator (const rtx_insn *);
extern location_t prologue_location, epilogue_location;
-/* In jump.c */
+/* In jump.cc */
extern enum rtx_code reverse_condition (enum rtx_code);
extern enum rtx_code reverse_condition_maybe_unordered (enum rtx_code);
extern enum rtx_code swap_condition (enum rtx_code);
return unsigned_condition (code) == code;
}
-/* In jump.c */
+/* In jump.cc */
extern rtx_insn *delete_related_insns (rtx);
-/* In recog.c */
+/* In recog.cc */
extern rtx *find_constant_term_loc (rtx *);
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern rtx_insn *try_split (rtx, rtx_insn *, int);
-/* In insn-recog.c (generated by genrecog). */
+/* In insn-recog.cc (generated by genrecog). */
extern rtx_insn *split_insns (rtx, rtx_insn *);
-/* In simplify-rtx.c */
+/* In simplify-rtx.cc */
+
+/* A class that records the context in which a simplification
+ is being mode. */
+class simplify_context
+{
+public:
+ rtx simplify_unary_operation (rtx_code, machine_mode, rtx, machine_mode);
+ rtx simplify_binary_operation (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_ternary_operation (rtx_code, machine_mode, machine_mode,
+ rtx, rtx, rtx);
+ rtx simplify_relational_operation (rtx_code, machine_mode, machine_mode,
+ rtx, rtx);
+ rtx simplify_subreg (machine_mode, rtx, machine_mode, poly_uint64);
+
+ rtx lowpart_subreg (machine_mode, rtx, machine_mode);
+
+ rtx simplify_merge_mask (rtx, rtx, int);
+
+ rtx simplify_gen_unary (rtx_code, machine_mode, rtx, machine_mode);
+ rtx simplify_gen_binary (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_gen_ternary (rtx_code, machine_mode, machine_mode,
+ rtx, rtx, rtx);
+ rtx simplify_gen_relational (rtx_code, machine_mode, machine_mode, rtx, rtx);
+ rtx simplify_gen_subreg (machine_mode, rtx, machine_mode, poly_uint64);
+ rtx simplify_gen_vec_select (rtx, unsigned int);
+
+ /* Tracks the level of MEM nesting for the value being simplified:
+ 0 means the value is not in a MEM, >0 means it is. This is needed
+ because the canonical representation of multiplication is different
+ inside a MEM than outside. */
+ unsigned int mem_depth = 0;
+
+ /* Tracks number of simplify_associative_operation calls performed during
+ outermost simplify* call. */
+ unsigned int assoc_count = 0;
+
+ /* Limit for the above number, return NULL from
+ simplify_associative_operation after we reach that assoc_count. */
+ static const unsigned int max_assoc_count = 64;
+
+private:
+ rtx simplify_truncation (machine_mode, rtx, machine_mode);
+ rtx simplify_byte_swapping_operation (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_associative_operation (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_distributive_operation (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_logical_relational_operation (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_binary_operation_series (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_distribute_over_subregs (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_shift_const_int (rtx_code, machine_mode, rtx, unsigned int);
+ rtx simplify_plus_minus (rtx_code, machine_mode, rtx, rtx);
+ rtx simplify_cond_clz_ctz (rtx, rtx_code, rtx, rtx);
+
+ rtx simplify_unary_operation_1 (rtx_code, machine_mode, rtx);
+ rtx simplify_binary_operation_1 (rtx_code, machine_mode, rtx, rtx, rtx, rtx);
+ rtx simplify_ternary_operation_1 (rtx_code, machine_mode, machine_mode,
+ rtx, rtx, rtx);
+ rtx simplify_relational_operation_1 (rtx_code, machine_mode, machine_mode,
+ rtx, rtx);
+};
+
+inline rtx
+simplify_unary_operation (rtx_code code, machine_mode mode, rtx op,
+ machine_mode op_mode)
+{
+ return simplify_context ().simplify_unary_operation (code, mode, op,
+ op_mode);
+}
+
+inline rtx
+simplify_binary_operation (rtx_code code, machine_mode mode, rtx op0, rtx op1)
+{
+ return simplify_context ().simplify_binary_operation (code, mode, op0, op1);
+}
+
+inline rtx
+simplify_ternary_operation (rtx_code code, machine_mode mode,
+ machine_mode op0_mode, rtx op0, rtx op1, rtx op2)
+{
+ return simplify_context ().simplify_ternary_operation (code, mode, op0_mode,
+ op0, op1, op2);
+}
+
+inline rtx
+simplify_relational_operation (rtx_code code, machine_mode mode,
+ machine_mode op_mode, rtx op0, rtx op1)
+{
+ return simplify_context ().simplify_relational_operation (code, mode,
+ op_mode, op0, op1);
+}
+
+inline rtx
+simplify_subreg (machine_mode outermode, rtx op, machine_mode innermode,
+ poly_uint64 byte)
+{
+ return simplify_context ().simplify_subreg (outermode, op, innermode, byte);
+}
+
+inline rtx
+simplify_gen_unary (rtx_code code, machine_mode mode, rtx op,
+ machine_mode op_mode)
+{
+ return simplify_context ().simplify_gen_unary (code, mode, op, op_mode);
+}
+
+inline rtx
+simplify_gen_binary (rtx_code code, machine_mode mode, rtx op0, rtx op1)
+{
+ return simplify_context ().simplify_gen_binary (code, mode, op0, op1);
+}
+
+inline rtx
+simplify_gen_ternary (rtx_code code, machine_mode mode, machine_mode op0_mode,
+ rtx op0, rtx op1, rtx op2)
+{
+ return simplify_context ().simplify_gen_ternary (code, mode, op0_mode,
+ op0, op1, op2);
+}
+
+inline rtx
+simplify_gen_relational (rtx_code code, machine_mode mode,
+ machine_mode op_mode, rtx op0, rtx op1)
+{
+ return simplify_context ().simplify_gen_relational (code, mode, op_mode,
+ op0, op1);
+}
+
+inline rtx
+simplify_gen_subreg (machine_mode outermode, rtx op, machine_mode innermode,
+ poly_uint64 byte)
+{
+ return simplify_context ().simplify_gen_subreg (outermode, op,
+ innermode, byte);
+}
+
+inline rtx
+simplify_gen_vec_select (rtx op, unsigned int index)
+{
+ return simplify_context ().simplify_gen_vec_select (op, index);
+}
+
+inline rtx
+lowpart_subreg (machine_mode outermode, rtx op, machine_mode innermode)
+{
+ return simplify_context ().lowpart_subreg (outermode, op, innermode);
+}
+
extern rtx simplify_const_unary_operation (enum rtx_code, machine_mode,
rtx, machine_mode);
-extern rtx simplify_unary_operation (enum rtx_code, machine_mode, rtx,
- machine_mode);
extern rtx simplify_const_binary_operation (enum rtx_code, machine_mode,
rtx, rtx);
-extern rtx simplify_binary_operation (enum rtx_code, machine_mode, rtx,
- rtx);
-extern rtx simplify_ternary_operation (enum rtx_code, machine_mode,
- machine_mode, rtx, rtx, rtx);
extern rtx simplify_const_relational_operation (enum rtx_code,
machine_mode, rtx, rtx);
-extern rtx simplify_relational_operation (enum rtx_code, machine_mode,
- machine_mode, rtx, rtx);
-extern rtx simplify_gen_binary (enum rtx_code, machine_mode, rtx, rtx);
-extern rtx simplify_gen_unary (enum rtx_code, machine_mode, rtx,
- machine_mode);
-extern rtx simplify_gen_ternary (enum rtx_code, machine_mode,
- machine_mode, rtx, rtx, rtx);
-extern rtx simplify_gen_relational (enum rtx_code, machine_mode,
- machine_mode, rtx, rtx);
-extern rtx simplify_subreg (machine_mode, rtx, machine_mode, poly_uint64);
-extern rtx simplify_gen_subreg (machine_mode, rtx, machine_mode, poly_uint64);
-extern rtx lowpart_subreg (machine_mode, rtx, machine_mode);
extern rtx simplify_replace_fn_rtx (rtx, const_rtx,
rtx (*fn) (rtx, const_rtx, void *), void *);
extern rtx simplify_replace_rtx (rtx, const_rtx, rtx);
unsigned HOST_WIDE_INT);
extern bool val_signbit_known_clear_p (machine_mode,
unsigned HOST_WIDE_INT);
+extern bool reverse_rotate_by_imm_p (machine_mode, unsigned int, rtx);
-/* In reginfo.c */
+/* In reginfo.cc */
extern machine_mode choose_hard_reg_mode (unsigned int, unsigned int,
- bool);
+ const predefined_function_abi *);
extern const HARD_REG_SET &simplifiable_subregs (const subreg_shape &);
-/* In emit-rtl.c */
+/* In emit-rtl.cc */
extern rtx set_for_reg_notes (rtx);
extern rtx set_unique_reg_note (rtx, enum reg_note, rtx);
extern rtx set_dst_reg_note (rtx, enum reg_note, rtx, rtx);
extern void set_insn_deleted (rtx_insn *);
-/* Functions in rtlanal.c */
+/* Functions in rtlanal.cc */
extern rtx single_set_2 (const rtx_insn *, const_rtx);
+extern rtx simple_regno_set (rtx, unsigned int);
extern bool contains_symbol_ref_p (const_rtx);
extern bool contains_symbolic_reference_p (const_rtx);
extern bool contains_constant_pool_address_p (const_rtx);
+extern void add_auto_inc_notes (rtx_insn *, rtx);
/* Handle the cheap and common cases inline for performance. */
}
extern scalar_int_mode get_address_mode (rtx mem);
-extern int rtx_addr_can_trap_p (const_rtx);
+extern bool rtx_addr_can_trap_p (const_rtx);
extern bool nonzero_address_p (const_rtx);
-extern int rtx_unstable_p (const_rtx);
+extern bool rtx_unstable_p (const_rtx);
extern bool rtx_varies_p (const_rtx, bool);
extern bool rtx_addr_varies_p (const_rtx, bool);
-extern rtx get_call_rtx_from (rtx);
+extern rtx get_call_rtx_from (const rtx_insn *);
+extern tree get_call_fndecl (const rtx_insn *);
extern HOST_WIDE_INT get_integer_term (const_rtx);
extern rtx get_related_value (const_rtx);
extern bool offset_within_block_p (const_rtx, HOST_WIDE_INT);
extern rtx strip_offset (rtx, poly_int64_pod *);
extern poly_int64 get_args_size (const_rtx);
extern bool unsigned_reg_p (rtx);
-extern int reg_mentioned_p (const_rtx, const_rtx);
+extern bool reg_mentioned_p (const_rtx, const_rtx);
extern int count_occurrences (const_rtx, const_rtx, int);
-extern int reg_referenced_p (const_rtx, const_rtx);
-extern int reg_used_between_p (const_rtx, const rtx_insn *, const rtx_insn *);
-extern int reg_set_between_p (const_rtx, const rtx_insn *, const rtx_insn *);
+extern bool reg_referenced_p (const_rtx, const_rtx);
+extern bool reg_used_between_p (const_rtx, const rtx_insn *, const rtx_insn *);
+extern bool reg_set_between_p (const_rtx, const rtx_insn *, const rtx_insn *);
extern int commutative_operand_precedence (rtx);
extern bool swap_commutative_operands_p (rtx, rtx);
-extern int modified_between_p (const_rtx, const rtx_insn *, const rtx_insn *);
-extern int no_labels_between_p (const rtx_insn *, const rtx_insn *);
-extern int modified_in_p (const_rtx, const_rtx);
-extern int reg_set_p (const_rtx, const_rtx);
-extern int multiple_sets (const_rtx);
-extern int set_noop_p (const_rtx);
-extern int noop_move_p (const rtx_insn *);
+extern bool modified_between_p (const_rtx, const rtx_insn *, const rtx_insn *);
+extern bool no_labels_between_p (const rtx_insn *, const rtx_insn *);
+extern bool modified_in_p (const_rtx, const_rtx);
+extern bool reg_set_p (const_rtx, const_rtx);
+extern bool multiple_sets (const_rtx);
+extern bool set_noop_p (const_rtx);
+extern bool noop_move_p (const rtx_insn *);
extern bool refers_to_regno_p (unsigned int, unsigned int, const_rtx, rtx *);
-extern int reg_overlap_mentioned_p (const_rtx, const_rtx);
+extern bool reg_overlap_mentioned_p (const_rtx, const_rtx);
extern const_rtx set_of (const_rtx, const_rtx);
extern void record_hard_reg_sets (rtx, const_rtx, void *);
extern void record_hard_reg_uses (rtx *, void *);
extern void find_all_hard_regs (const_rtx, HARD_REG_SET *);
extern void find_all_hard_reg_sets (const rtx_insn *, HARD_REG_SET *, bool);
-extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *);
+extern void note_pattern_stores (const_rtx,
+ void (*) (rtx, const_rtx, void *), void *);
+extern void note_stores (const rtx_insn *,
+ void (*) (rtx, const_rtx, void *), void *);
extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
-extern int dead_or_set_p (const rtx_insn *, const_rtx);
-extern int dead_or_set_regno_p (const rtx_insn *, unsigned int);
+extern bool dead_or_set_p (const rtx_insn *, const_rtx);
+extern bool dead_or_set_regno_p (const rtx_insn *, unsigned int);
extern rtx find_reg_note (const_rtx, enum reg_note, const_rtx);
extern rtx find_regno_note (const_rtx, enum reg_note, unsigned int);
extern rtx find_reg_equal_equiv_note (const_rtx);
extern rtx find_constant_src (const rtx_insn *);
-extern int find_reg_fusage (const_rtx, enum rtx_code, const_rtx);
-extern int find_regno_fusage (const_rtx, enum rtx_code, unsigned int);
+extern bool find_reg_fusage (const_rtx, enum rtx_code, const_rtx);
+extern bool find_regno_fusage (const_rtx, enum rtx_code, unsigned int);
extern rtx alloc_reg_note (enum reg_note, rtx, rtx);
extern void add_reg_note (rtx, enum reg_note, rtx);
extern void add_int_reg_note (rtx_insn *, enum reg_note, int);
extern void add_shallow_copy_of_reg_note (rtx_insn *, rtx);
extern rtx duplicate_reg_note (rtx);
extern void remove_note (rtx_insn *, const_rtx);
-extern bool remove_reg_equal_equiv_notes (rtx_insn *);
+extern bool remove_reg_equal_equiv_notes (rtx_insn *, bool = false);
extern void remove_reg_equal_equiv_notes_for_regno (unsigned int);
-extern int side_effects_p (const_rtx);
-extern int volatile_refs_p (const_rtx);
-extern int volatile_insn_p (const_rtx);
-extern int may_trap_p_1 (const_rtx, unsigned);
-extern int may_trap_p (const_rtx);
-extern int may_trap_or_fault_p (const_rtx);
+extern bool side_effects_p (const_rtx);
+extern bool volatile_refs_p (const_rtx);
+extern bool volatile_insn_p (const_rtx);
+extern bool may_trap_p_1 (const_rtx, unsigned);
+extern bool may_trap_p (const_rtx);
+extern bool may_trap_or_fault_p (const_rtx);
extern bool can_throw_internal (const_rtx);
extern bool can_throw_external (const_rtx);
extern bool insn_could_throw_p (const_rtx);
extern bool can_nonlocal_goto (const rtx_insn *);
extern void copy_reg_eh_region_note_forward (rtx, rtx_insn *, rtx);
extern void copy_reg_eh_region_note_backward (rtx, rtx_insn *, rtx);
-extern int inequality_comparisons_p (const_rtx);
extern rtx replace_rtx (rtx, rtx, rtx, bool = false);
extern void replace_label (rtx *, rtx, rtx, bool);
extern void replace_label_in_insn (rtx_insn *, rtx_insn *, rtx_insn *, bool);
extern bool rtx_referenced_p (const_rtx, const_rtx);
extern bool tablejump_p (const rtx_insn *, rtx_insn **, rtx_jump_table_data **);
-extern int computed_jump_p (const rtx_insn *);
+extern rtx tablejump_casesi_pattern (const rtx_insn *insn);
+extern bool computed_jump_p (const rtx_insn *);
extern bool tls_referenced_p (const_rtx);
extern bool contains_mem_rtx_p (rtx x);
-extern bool reg_is_clobbered_by_clobber_high (unsigned int, machine_mode,
- const_rtx);
-
-/* Convenient wrapper for reg_is_clobbered_by_clobber_high. */
-inline bool
-reg_is_clobbered_by_clobber_high (const_rtx x, const_rtx clobber_high_op)
-{
- return reg_is_clobbered_by_clobber_high (REGNO (x), GET_MODE (x),
- clobber_high_op);
-}
+extern bool register_asm_p (const_rtx);
/* Overload for refers_to_regno_p for checking a single register. */
inline bool
bool, hash_rtx_callback_function);
extern rtx regno_use_in (unsigned int, rtx);
-extern int auto_inc_p (const_rtx);
+extern bool auto_inc_p (const_rtx);
extern bool in_insn_list_p (const rtx_insn_list *, const rtx_insn *);
-extern void remove_node_from_expr_list (const_rtx, rtx_expr_list **);
extern void remove_node_from_insn_list (const rtx_insn *, rtx_insn_list **);
-extern int loc_mentioned_in_p (rtx *, const_rtx);
+extern bool loc_mentioned_in_p (rtx *, const_rtx);
extern rtx_insn *find_first_parameter_load (rtx_insn *, rtx_insn *);
extern bool keep_with_call_p (const rtx_insn *);
extern bool label_is_jump_target_p (const_rtx, const rtx_insn *);
poly_uint64, machine_mode,
struct subreg_info *);
-/* lists.c */
+/* lists.cc */
extern void free_EXPR_LIST_list (rtx_expr_list **);
extern void free_INSN_LIST_list (rtx_insn_list **);
extern rtx remove_free_EXPR_LIST_node (rtx_expr_list **);
-/* reginfo.c */
+/* reginfo.cc */
/* Resize reg info. */
extern bool resize_reg_info (void);
extern void free_reg_info (void);
extern void init_subregs_of_mode (void);
extern void finish_subregs_of_mode (void);
+extern void reginfo_cc_finalize (void);
-/* recog.c */
+/* recog.cc */
extern rtx extract_asm_operands (rtx);
extern int asm_noperands (const_rtx);
extern const char *decode_asm_operands (rtx, rtx *, rtx **, const char **,
#define CONSTM1_RTX(MODE) (const_tiny_rtx[3][(int) (MODE)])
extern GTY(()) rtx pc_rtx;
-extern GTY(()) rtx cc0_rtx;
extern GTY(()) rtx ret_rtx;
extern GTY(()) rtx simple_return_rtx;
extern GTY(()) rtx_insn *invalid_insn_rtx;
rtx x_static_reg_base_value[FIRST_PSEUDO_REGISTER];
/* The default memory attributes for each mode. */
- struct mem_attrs *x_mode_mem_attrs[(int) MAX_MACHINE_MODE];
+ class mem_attrs *x_mode_mem_attrs[(int) MAX_MACHINE_MODE];
/* Track if RTL has been initialized. */
bool target_specific_initialized;
#ifndef GENERATOR_FILE
/* Return the attributes of a MEM rtx. */
-static inline const struct mem_attrs *
+inline const class mem_attrs *
get_mem_attrs (const_rtx x)
{
- struct mem_attrs *attrs;
+ class mem_attrs *attrs;
attrs = MEM_ATTRS (x);
if (!attrs)
/* There are some RTL codes that require special attention; the
generation functions included above do the raw handling. If you
- add to this list, modify special_rtx in gengenrtl.c as well. */
+ add to this list, modify special_rtx in gengenrtl.cc as well. */
extern rtx_expr_list *gen_rtx_EXPR_LIST (machine_mode, rtx, rtx);
extern rtx_insn_list *gen_rtx_INSN_LIST (machine_mode, rtx, rtx);
extern rtx gen_rtx_CONST_INT (machine_mode, HOST_WIDE_INT);
extern rtx gen_rtx_CONST_VECTOR (machine_mode, rtvec);
extern void set_mode_and_regno (rtx, machine_mode, unsigned int);
+extern rtx init_raw_REG (rtx, machine_mode, unsigned int);
extern rtx gen_raw_REG (machine_mode, unsigned int);
+#define alloca_raw_REG(mode, regno) \
+ init_raw_REG (rtx_alloca (REG), (mode), (regno))
extern rtx gen_rtx_REG (machine_mode, unsigned int);
extern rtx gen_rtx_SUBREG (machine_mode, rtx, poly_uint64);
extern rtx gen_rtx_MEM (machine_mode, rtx);
#ifdef GENERATOR_FILE
#define PUT_MODE(RTX, MODE) PUT_MODE_RAW (RTX, MODE)
#else
-static inline void
+inline void
PUT_MODE (rtx x, machine_mode mode)
{
if (REG_P (x))
|| (REGNUM) == FRAME_POINTER_REGNUM \
|| (REGNUM) == HARD_FRAME_POINTER_REGNUM \
|| (REGNUM) == ARG_POINTER_REGNUM \
- || ((REGNUM) >= FIRST_VIRTUAL_REGISTER \
- && (REGNUM) <= LAST_VIRTUAL_POINTER_REGISTER))
+ || VIRTUAL_REGISTER_NUM_P (REGNUM))
/* REGNUM never really appearing in the INSN stream. */
#define INVALID_REGNUM (~(unsigned int) 0)
extern rtx lookup_constant_def (tree);
/* Nonzero after end of reload pass.
- Set to 1 or 0 by reload1.c. */
+ Set to 1 or 0 by reload1.cc. */
extern int reload_completed;
#ifdef STACK_REGS
/* Nonzero after end of regstack pass.
- Set to 1 or 0 by reg-stack.c. */
+ Set to 1 or 0 by reg-stack.cc. */
extern int regstack_completed;
#endif
extern int rtx_to_tree_code (enum rtx_code);
-/* In cse.c */
+/* In cse.cc */
extern int delete_trivially_dead_insns (rtx_insn *, int);
-extern int exp_equiv_p (const_rtx, const_rtx, int, bool);
+extern bool exp_equiv_p (const_rtx, const_rtx, int, bool);
extern unsigned hash_rtx (const_rtx x, machine_mode, int *, int *, bool);
-/* In dse.c */
+/* In dse.cc */
extern bool check_for_inc_dec (rtx_insn *insn);
-/* In jump.c */
-extern int comparison_dominates_p (enum rtx_code, enum rtx_code);
+/* In jump.cc */
+extern bool comparison_dominates_p (enum rtx_code, enum rtx_code);
extern bool jump_to_label_p (const rtx_insn *);
-extern int condjump_p (const rtx_insn *);
-extern int any_condjump_p (const rtx_insn *);
-extern int any_uncondjump_p (const rtx_insn *);
+extern bool condjump_p (const rtx_insn *);
+extern bool any_condjump_p (const rtx_insn *);
+extern bool any_uncondjump_p (const rtx_insn *);
extern rtx pc_set (const rtx_insn *);
extern rtx condjump_label (const rtx_insn *);
-extern int simplejump_p (const rtx_insn *);
-extern int returnjump_p (const rtx_insn *);
-extern int eh_returnjump_p (rtx_insn *);
-extern int onlyjump_p (const rtx_insn *);
-extern int only_sets_cc0_p (const_rtx);
-extern int sets_cc0_p (const_rtx);
-extern int invert_jump_1 (rtx_jump_insn *, rtx);
-extern int invert_jump (rtx_jump_insn *, rtx, int);
-extern int rtx_renumbered_equal_p (const_rtx, const_rtx);
+extern bool simplejump_p (const rtx_insn *);
+extern bool returnjump_p (const rtx_insn *);
+extern bool eh_returnjump_p (rtx_insn *);
+extern bool onlyjump_p (const rtx_insn *);
+extern bool invert_jump_1 (rtx_jump_insn *, rtx);
+extern bool invert_jump (rtx_jump_insn *, rtx, int);
+extern bool rtx_renumbered_equal_p (const_rtx, const_rtx);
extern int true_regnum (const_rtx);
extern unsigned int reg_or_subregno (const_rtx);
-extern int redirect_jump_1 (rtx_insn *, rtx);
+extern bool redirect_jump_1 (rtx_insn *, rtx);
extern void redirect_jump_2 (rtx_jump_insn *, rtx, rtx, int, int);
-extern int redirect_jump (rtx_jump_insn *, rtx, int);
+extern bool redirect_jump (rtx_jump_insn *, rtx, int);
extern void rebuild_jump_labels (rtx_insn *);
extern void rebuild_jump_labels_chain (rtx_insn *);
extern rtx reversed_comparison (const_rtx, machine_mode);
extern enum rtx_code reversed_comparison_code_parts (enum rtx_code, const_rtx,
const_rtx, const rtx_insn *);
extern void delete_for_peephole (rtx_insn *, rtx_insn *);
-extern int condjump_in_parallel_p (const rtx_insn *);
+extern bool condjump_in_parallel_p (const rtx_insn *);
-/* In emit-rtl.c. */
+/* In emit-rtl.cc. */
extern int max_reg_num (void);
extern int max_label_num (void);
extern int get_first_label_num (void);
extern void reorder_insns (rtx_insn *, rtx_insn *, rtx_insn *);
extern void reorder_insns_nobb (rtx_insn *, rtx_insn *, rtx_insn *);
extern int get_max_insn_count (void);
-extern int in_sequence_p (void);
+extern bool in_sequence_p (void);
extern void init_emit (void);
extern void init_emit_regs (void);
extern void init_derived_machine_modes (void);
extern void push_topmost_sequence (void);
extern void pop_topmost_sequence (void);
extern void set_new_first_and_last_insn (rtx_insn *, rtx_insn *);
-extern unsigned int unshare_all_rtl (void);
+extern void unshare_all_rtl (void);
extern void unshare_all_rtl_again (rtx_insn *);
extern void unshare_all_rtl_in_chain (rtx_insn *);
extern void verify_rtl_sharing (void);
extern bool validate_subreg (machine_mode, machine_mode,
const_rtx, poly_uint64);
-/* In combine.c */
+/* In combine.cc */
extern unsigned int extended_count (const_rtx, machine_mode, int);
extern rtx remove_death (unsigned int, rtx_insn *);
extern void dump_combine_stats (FILE *);
extern void dump_combine_total_stats (FILE *);
extern rtx make_compound_operation (rtx, enum rtx_code);
-/* In sched-rgn.c. */
+/* In sched-rgn.cc. */
extern void schedule_insns (void);
-/* In sched-ebb.c. */
+/* In sched-ebb.cc. */
extern void schedule_ebbs (void);
-/* In sel-sched-dump.c. */
+/* In sel-sched-dump.cc. */
extern void sel_sched_fix_param (const char *param, const char *val);
-/* In print-rtl.c */
+/* In print-rtl.cc */
extern const char *print_rtx_head;
extern void debug (const rtx_def &ref);
extern void debug (const rtx_def *ptr);
extern int print_rtl_single_with_indent (FILE *, const_rtx, int);
extern void print_inline_rtx (FILE *, const_rtx, int);
-/* In stmt.c */
+/* In stmt.cc */
extern void expand_null_return (void);
extern void expand_naked_return (void);
extern void emit_jump (rtx);
RETURN_END_MINUS_ONE
};
-/* In expr.c */
+/* In expr.cc */
extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT,
unsigned int, memop_ret);
extern poly_int64 find_args_size_adjust (rtx_insn *);
extern poly_int64 fixup_args_size_notes (rtx_insn *, rtx_insn *, poly_int64);
-/* In expmed.c */
+/* In expmed.cc */
extern void init_expmed (void);
extern void expand_inc (rtx, rtx);
extern void expand_dec (rtx, rtx);
-/* In lower-subreg.c */
+/* In lower-subreg.cc */
extern void init_lower_subreg (void);
-/* In gcse.c */
+/* In gcse.cc */
extern bool can_copy_p (machine_mode);
extern bool can_assign_to_reg_without_clobbers_p (rtx, machine_mode);
extern rtx_insn *prepare_copy_insn (rtx, rtx);
-/* In cprop.c */
+/* In cprop.cc */
extern rtx fis_get_condition (rtx_insn *);
-/* In ira.c */
+/* In ira.cc */
extern HARD_REG_SET eliminable_regset;
extern void mark_elimination (int, int);
-/* In reginfo.c */
+/* In reginfo.cc */
extern int reg_classes_intersect_p (reg_class_t, reg_class_t);
extern int reg_class_subset_p (reg_class_t, reg_class_t);
extern void globalize_reg (tree, int);
extern void fix_register (const char *, int, int);
extern const HARD_REG_SET *valid_mode_changes_for_regno (unsigned int);
-/* In reload1.c */
+/* In reload1.cc */
extern int function_invariant_p (const_rtx);
-/* In calls.c */
+/* In calls.cc */
enum libcall_type
{
LCT_NORMAL = 0,
return emit_library_call_value_1 (1, fun, value, fn_type, outmode, 4, args);
}
-/* In varasm.c */
+/* In varasm.cc */
extern void init_varasm_once (void);
extern rtx make_debug_expr_from_rtl (const_rtx);
-/* In read-rtl.c */
+/* In read-rtl.cc */
#ifdef GENERATOR_FILE
extern bool read_rtx (const char *, vec<rtx> *);
#endif
-/* In alias.c */
+/* In alias.cc */
extern rtx canon_rtx (rtx);
-extern int true_dependence (const_rtx, machine_mode, const_rtx);
extern rtx get_addr (rtx);
-extern int canon_true_dependence (const_rtx, machine_mode, rtx,
- const_rtx, rtx);
-extern int read_dependence (const_rtx, const_rtx);
-extern int anti_dependence (const_rtx, const_rtx);
-extern int canon_anti_dependence (const_rtx, bool,
- const_rtx, machine_mode, rtx);
-extern int output_dependence (const_rtx, const_rtx);
-extern int canon_output_dependence (const_rtx, bool,
- const_rtx, machine_mode, rtx);
-extern int may_alias_p (const_rtx, const_rtx);
+extern bool read_dependence (const_rtx, const_rtx);
+extern bool true_dependence (const_rtx, machine_mode, const_rtx);
+extern bool canon_true_dependence (const_rtx, machine_mode, rtx,
+ const_rtx, rtx);
+extern bool anti_dependence (const_rtx, const_rtx);
+extern bool canon_anti_dependence (const_rtx, bool,
+ const_rtx, machine_mode, rtx);
+extern bool output_dependence (const_rtx, const_rtx);
+extern bool canon_output_dependence (const_rtx, bool,
+ const_rtx, machine_mode, rtx);
+extern bool may_alias_p (const_rtx, const_rtx);
extern void init_alias_target (void);
extern void init_alias_analysis (void);
extern void end_alias_analysis (void);
extern bool memory_modified_in_insn_p (const_rtx, const_rtx);
extern bool may_be_sp_based_p (rtx);
extern rtx gen_hard_reg_clobber (machine_mode, unsigned int);
-extern rtx gen_hard_reg_clobber_high (machine_mode, unsigned int);
extern rtx get_reg_known_value (unsigned int);
extern bool get_reg_known_equiv_p (unsigned int);
extern rtx get_reg_base_value (unsigned int);
+extern rtx extract_mem_from_operand (rtx);
#ifdef STACK_REGS
extern int stack_regs_mentioned (const_rtx insn);
#endif
-/* In toplev.c */
+/* In toplev.cc */
extern GTY(()) rtx stack_limit_rtx;
-/* In var-tracking.c */
+/* In var-tracking.cc */
extern unsigned int variable_tracking_main (void);
extern void delete_vta_debug_insns (bool);
-/* In stor-layout.c. */
+/* In stor-layout.cc. */
extern void get_mode_bounds (scalar_int_mode, int,
scalar_int_mode, rtx *, rtx *);
-/* In loop-iv.c */
+/* In loop-iv.cc */
extern rtx canon_condition (rtx);
extern void simplify_using_condition (rtx, rtx *, bitmap);
-/* In final.c */
+/* In final.cc */
extern unsigned int compute_alignments (void);
extern void update_alignments (vec<rtx> &);
extern int asm_str_count (const char *templ);
extern location_t curr_insn_location (void);
extern void set_insn_locations (rtx_insn *, location_t);
-/* rtl-error.c */
+/* rtl-error.cc */
extern void _fatal_insn_not_found (const_rtx, const char *, int, const char *)
ATTRIBUTE_NORETURN ATTRIBUTE_COLD;
extern void _fatal_insn (const char *, const_rtx, const char *, int, const char *)
#define fatal_insn_not_found(insn) \
_fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__)
-/* reginfo.c */
+/* reginfo.cc */
extern tree GTY(()) global_regs_decl[FIRST_PSEUDO_REGISTER];
/* Information about the function that is propagated by the RTL backend.
Available only for functions that has been already assembled. */
struct GTY(()) cgraph_rtl_info {
- unsigned int preferred_incoming_stack_boundary;
+ unsigned int preferred_incoming_stack_boundary;
- /* Call unsaved hard registers really used by the corresponding
- function (including ones used by functions called by the
- function). */
+ /* Which registers the function clobbers, either directly or by
+ calling another function. */
HARD_REG_SET function_used_regs;
- /* Set if function_used_regs is valid. */
- unsigned function_used_regs_valid: 1;
};
/* If loads from memories of mode MODE always sign or zero extend,
return true;
}
}
-
-/* gtype-desc.c. */
+
+/* Holds an rtx comparison to simplify passing many parameters pertaining to a
+ single comparison. */
+
+struct rtx_comparison {
+ rtx_code code;
+ rtx op0, op1;
+ machine_mode mode;
+};
+
+/* gtype-desc.cc. */
extern void gt_ggc_mx (rtx &);
extern void gt_pch_nx (rtx &);
extern void gt_pch_nx (rtx &, gt_pointer_operator, void *);
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