#include <rtx-vector-builder.h>

Inheritance diagram for rtx_vector_builder:

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Collaboration diagram for rtx_vector_builder:

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Public Member Functions
	rtx_vector_builder ()

	rtx_vector_builder (machine_mode, unsigned int, unsigned int)

rtx	build (rtvec)

rtx	build ()

machine_mode	mode () const

void	new_vector (machine_mode, unsigned int, unsigned int)

poly_uint64	full_nelts () const

unsigned int	npatterns () const

unsigned int	nelts_per_pattern () const

unsigned int	encoded_nelts () const

bool	encoded_full_vector_p () const

rtx	elt (unsigned int) const

unsigned int	count_dups (int, int, int) const

bool	operator== (const rtx_vector_builder &) const

bool	operator!= (const rtx_vector_builder &x) const

bool	new_unary_operation (machine_mode, rtx, bool)

bool	new_binary_operation (machine_mode, rtx, rtx, bool)

void	finalize ()

vec< rtx, va_heap >	to_vec_legacy ()

Static Public Member Functions
static unsigned int	binary_encoded_nelts (rtx, rtx)

Protected Member Functions
void	new_vector (poly_uint64, unsigned int, unsigned int)

void	reshape (unsigned int, unsigned int)

bool	repeating_sequence_p (unsigned int, unsigned int, unsigned int)

bool	stepped_sequence_p (unsigned int, unsigned int, unsigned int)

bool	try_npatterns (unsigned int)

Private Types
typedef vector_builder< rtx, machine_mode, rtx_vector_builder >	parent

Private Member Functions
bool	equal_p (rtx, rtx) const

bool	allow_steps_p () const

bool	integral_p (rtx) const

poly_wide_int	step (rtx, rtx) const

rtx	apply_step (rtx, unsigned int, const poly_wide_int &) const

bool	can_elide_p (rtx) const

void	note_representative (rtx *, rtx)

rtx	find_cached_value ()

rtx_vector_builder *	derived ()

const rtx_vector_builder *	derived () const

Static Private Member Functions
static poly_uint64	shape_nelts (machine_mode mode)

static poly_uint64	nelts_of (const_rtx x)

static unsigned int	npatterns_of (const_rtx x)

static unsigned int	nelts_per_pattern_of (const_rtx x)

Private Attributes
machine_mode	m_mode

poly_uint64	m_full_nelts

unsigned int	m_npatterns

unsigned int	m_nelts_per_pattern

vec< rtx, va_heap, vl_embed >	m_auto

unsigned char	m_data [sizeof(rtx) *N]

Friends
class	vector_builder< rtx, machine_mode, rtx_vector_builder >

Detailed Description

A class for building vector rtx constants.
   Copyright (C) 2017-2024 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 3, 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 COPYING3.  If not see
<http://www.gnu.org/licenses/>.

This class is used to build VECTOR_CSTs from a sequence of elements.
See vector_builder for more details.

Member Typedef Documentation

◆ parent

vector_builder<rtx, machine_mode, rtx_vector_builder> rtx_vector_builder::parent

private

Constructor & Destructor Documentation

◆ rtx_vector_builder() [1/2]

rtx_vector_builder::rtx_vector_builder ( )

inline

◆ rtx_vector_builder() [2/2]

rtx_vector_builder::rtx_vector_builder	(	machine_mode	mode,
		unsigned int	npatterns,
		unsigned int	nelts_per_pattern )

inline

Create a new builder for a vector of mode MODE.  Initially encode the
value as NPATTERNS interleaved patterns with NELTS_PER_PATTERN elements
each.

References mode(), vector_builder< rtx, machine_mode, rtx_vector_builder >::nelts_per_pattern(), new_vector(), and vector_builder< rtx, machine_mode, rtx_vector_builder >::npatterns().

Member Function Documentation

◆ allow_steps_p()

bool rtx_vector_builder::allow_steps_p ( ) const

inlineprivate

Return true if a stepped representation is OK.  We don't allow
linear series for anything other than integers, to avoid problems
with rounding.

References GET_MODE_INNER, is_a(), and m_mode.

◆ apply_step()

rtx rtx_vector_builder::apply_step	(	rtx	base,
		unsigned int	factor,
		const poly_wide_int &	step ) const

private

Return a vector element with the value BASE + FACTOR * STEP.

References as_a(), GET_MODE_INNER, immed_wide_int_const(), m_mode, step(), and wi::to_poly_wide().

◆ binary_encoded_nelts()

unsigned int vector_builder< rtx, machine_mode, rtx_vector_builder >::binary_encoded_nelts	(	rtx	vec1,
		rtx	vec2 )

staticinherited

Return the number of elements that the caller needs to operate on in
order to handle a binary operation on vector constants VEC1 and VEC2.
This static function is used instead of new_binary_operation if the
result of the operation is not a constant vector.

◆ build() [1/2]

rtx rtx_vector_builder::build ( )

Return a CONST_VECTOR for the current constant.

References CONST_VECTOR_NELTS_PER_PATTERN, CONST_VECTOR_NPATTERNS, vector_builder< rtx, machine_mode, rtx_vector_builder >::elt(), vector_builder< rtx, machine_mode, rtx_vector_builder >::encoded_nelts(), vector_builder< rtx, machine_mode, rtx_vector_builder >::finalize(), find_cached_value(), GET_MODE_NUNITS(), i, m_mode, vector_builder< rtx, machine_mode, rtx_vector_builder >::nelts_per_pattern(), vector_builder< rtx, machine_mode, rtx_vector_builder >::npatterns(), rtvec_alloc(), and RTVEC_ELT.

◆ build() [2/2]

rtx rtx_vector_builder::build ( rtvec v )

A class for building vector rtx constants.
   Copyright (C) 2017-2024 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 3, 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 COPYING3.  If not see
<http://www.gnu.org/licenses/>.

Return a CONST_VECTOR for the current constant.  V is an existing
rtvec that contains all the elements.

References CONST_VECTOR_NELTS_PER_PATTERN, CONST_VECTOR_NPATTERNS, vector_builder< rtx, machine_mode, rtx_vector_builder >::finalize(), find_cached_value(), m_mode, vector_builder< rtx, machine_mode, rtx_vector_builder >::nelts_per_pattern(), and vector_builder< rtx, machine_mode, rtx_vector_builder >::npatterns().

Referenced by const_vector_from_tree(), const_vector_mask_from_tree(), expand_vec_perm_var(), gen_const_vec_duplicate(), gen_const_vec_series(), gen_rtx_CONST_VECTOR(), native_decode_vector_rtx(), simplify_const_binary_operation(), simplify_const_unary_operation(), and vec_perm_indices_to_rtx().

◆ can_elide_p()

bool rtx_vector_builder::can_elide_p ( rtx ) const

inlineprivate

◆ count_dups()

unsigned int vector_builder< rtx, machine_mode, rtx_vector_builder >::count_dups	(	int	start,
		int	end,
		int	step ) const

inherited

Return the number of leading duplicate elements in the range
[START:END:STEP].  The value is always at least 1.

◆ derived() [1/2]

rtx_vector_builder * vector_builder< rtx, machine_mode, rtx_vector_builder >::derived ( )

inlineprivateinherited

◆ derived() [2/2]

const rtx_vector_builder * vector_builder< rtx, machine_mode, rtx_vector_builder >::derived ( ) const

inlineprivateinherited

◆ elt()

rtx vector_builder< rtx, machine_mode, rtx_vector_builder >::elt ( unsigned int i ) const

inherited

Return the value of vector element I, which might or might not be
encoded explicitly.

Referenced by build(), find_cached_value(), and integral_p().

◆ encoded_full_vector_p()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::encoded_full_vector_p ( ) const

inlineinherited

Return true if every element of the vector is explicitly encoded.

◆ encoded_nelts()

unsigned int vector_builder< rtx, machine_mode, rtx_vector_builder >::encoded_nelts ( ) const

inlineinherited

Return the number of elements that are explicitly encoded.  The vec
starts with these explicitly-encoded elements and may contain additional
elided elements.

Referenced by build(), and find_cached_value().

◆ equal_p()

bool rtx_vector_builder::equal_p	(	rtx	elt1,
		rtx	elt2 ) const

inlineprivate

Return true if elements ELT1 and ELT2 are equal.

References rtx_equal_p().

◆ finalize()

void vector_builder< rtx, machine_mode, rtx_vector_builder >::finalize ( )

inherited

Replace the current encoding with the canonical form.

Referenced by build(), and build().

◆ find_cached_value()

rtx rtx_vector_builder::find_cached_value ( )

private

Check whether there is a global cached value for the vector.
Return it if so, otherwise return null.

References CONST0_RTX, const0_rtx, CONST1_RTX, const1_rtx, CONSTM1_RTX, constm1_rtx, vector_builder< rtx, machine_mode, rtx_vector_builder >::elt(), vector_builder< rtx, machine_mode, rtx_vector_builder >::encoded_nelts(), gcc_unreachable, GET_MODE_CLASS, GET_MODE_INNER, m_mode, and NULL_RTX.

Referenced by build(), and build().

◆ full_nelts()

poly_uint64 vector_builder< rtx, machine_mode, rtx_vector_builder >::full_nelts ( ) const

inlineinherited

◆ integral_p()

bool rtx_vector_builder::integral_p ( rtx elt ) const

inlineprivate

Return true if element ELT can be interpreted as an integer.

References CONST_SCALAR_INT_P, and vector_builder< rtx, machine_mode, rtx_vector_builder >::elt().

◆ mode()

machine_mode rtx_vector_builder::mode ( ) const

inline

References m_mode.

Referenced by new_vector(), rtx_vector_builder(), and shape_nelts().

◆ nelts_of()

static poly_uint64 rtx_vector_builder::nelts_of ( const_rtx x )

inlinestaticprivate

References CONST_VECTOR_NUNITS.

◆ nelts_per_pattern()

unsigned int vector_builder< rtx, machine_mode, rtx_vector_builder >::nelts_per_pattern ( ) const

inlineinherited

Referenced by build(), build(), new_vector(), and rtx_vector_builder().

◆ nelts_per_pattern_of()

static unsigned int rtx_vector_builder::nelts_per_pattern_of ( const_rtx x )

inlinestaticprivate

References CONST_VECTOR_NELTS_PER_PATTERN.

◆ new_binary_operation()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::new_binary_operation	(	machine_mode	shape,
		rtx	vec1,
		rtx	vec2,
		bool	allow_stepped_p )

inherited

Try to start building a new vector of shape SHAPE that holds the result of
a binary operation on vector constants VEC1 and VEC2.  ALLOW_STEPPED_P is
true if the operation can handle stepped encodings directly, without
having to expand the full sequence.

Return true if the operation is possible.  Leave the builder unchanged
otherwise.

◆ new_unary_operation()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::new_unary_operation	(	machine_mode	shape,
		rtx	vec,
		bool	allow_stepped_p )

inherited

Try to start building a new vector of shape SHAPE that holds the result of
a unary operation on vector constant VEC.  ALLOW_STEPPED_P is true if the
operation can handle stepped encodings directly, without having to expand
the full sequence.

Return true if the operation is possible, which it always is when
ALLOW_STEPPED_P is true.  Leave the builder unchanged otherwise.

◆ new_vector() [1/2]

void rtx_vector_builder::new_vector	(	machine_mode	mode,
		unsigned int	npatterns,
		unsigned int	nelts_per_pattern )

inline

Start building a new vector of mode MODE.  Initially encode the value
as NPATTERNS interleaved patterns with NELTS_PER_PATTERN elements each.

References GET_MODE_NUNITS(), m_mode, mode(), vector_builder< rtx, machine_mode, rtx_vector_builder >::nelts_per_pattern(), vector_builder< rtx, machine_mode, rtx_vector_builder >::new_vector(), and vector_builder< rtx, machine_mode, rtx_vector_builder >::npatterns().

Referenced by rtx_vector_builder().

◆ new_vector() [2/2]

void vector_builder< rtx, machine_mode, rtx_vector_builder >::new_vector	(	poly_uint64	full_nelts,
		unsigned int	npatterns,
		unsigned int	nelts_per_pattern )

protectedinherited

Start building a vector that has FULL_NELTS elements.  Initially
encode it using NPATTERNS patterns with NELTS_PER_PATTERN each.

Referenced by new_vector().

◆ note_representative()

void rtx_vector_builder::note_representative	(	rtx *	,
		rtx	)

inlineprivate

◆ npatterns()

unsigned int vector_builder< rtx, machine_mode, rtx_vector_builder >::npatterns ( ) const

inlineinherited

Referenced by build(), build(), new_vector(), and rtx_vector_builder().

◆ npatterns_of()

static unsigned int rtx_vector_builder::npatterns_of ( const_rtx x )

inlinestaticprivate

References CONST_VECTOR_NPATTERNS.

◆ operator!=()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::operator!= ( const rtx_vector_builder< rtx, machine_mode, rtx_vector_builder > & x ) const

inlineinherited

◆ operator==()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::operator== ( const rtx_vector_builder< rtx, machine_mode, rtx_vector_builder > & other ) const

inherited

Return true if this vector and OTHER have the same elements and
are encoded in the same way.

◆ repeating_sequence_p()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::repeating_sequence_p	(	unsigned int	start,
		unsigned int	end,
		unsigned int	step )

protectedinherited

Return true if elements [START, END) contain a repeating sequence of
STEP elements.

◆ reshape()

void vector_builder< rtx, machine_mode, rtx_vector_builder >::reshape	(	unsigned int	npatterns,
		unsigned int	nelts_per_pattern )

protectedinherited

Change the encoding to NPATTERNS patterns of NELTS_PER_PATTERN each,
but without changing the underlying vector.

◆ shape_nelts()

static poly_uint64 rtx_vector_builder::shape_nelts ( machine_mode mode )

inlinestaticprivate

References GET_MODE_NUNITS(), and mode().

◆ step()

poly_wide_int rtx_vector_builder::step	(	rtx	elt1,
		rtx	elt2 ) const

inlineprivate

Return the value of element ELT2 minus the value of element ELT1.
Both elements are known to be CONST_SCALAR_INT_Ps.

References GET_MODE_INNER, m_mode, and wi::to_poly_wide().

Referenced by apply_step().

◆ stepped_sequence_p()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::stepped_sequence_p	(	unsigned int	start,
		unsigned int	end,
		unsigned int	step )

protectedinherited

Return true if elements [START, END) contain STEP interleaved linear
series.

◆ to_vec_legacy()

vec< rtx, va_heap > auto_vec< rtx, N >::to_vec_legacy ( )

inlineinherited

◆ try_npatterns()

bool vector_builder< rtx, machine_mode, rtx_vector_builder >::try_npatterns ( unsigned int npatterns )

protectedinherited

Try to change the number of encoded patterns to NPATTERNS, returning
true on success.

Friends And Related Symbol Documentation

◆ vector_builder< rtx, machine_mode, rtx_vector_builder >

friend class vector_builder< rtx, machine_mode, rtx_vector_builder >

friend

Field Documentation

◆ m_auto

vec<rtx, va_heap, vl_embed> auto_vec< rtx, N >::m_auto

privateinherited

◆ m_data

unsigned char auto_vec< rtx, N >::m_data[sizeof(rtx) *N]

privateinherited

◆ m_full_nelts

poly_uint64 vector_builder< rtx, machine_mode, rtx_vector_builder >::m_full_nelts

privateinherited

◆ m_mode

machine_mode rtx_vector_builder::m_mode

private

Referenced by allow_steps_p(), apply_step(), build(), build(), find_cached_value(), mode(), new_vector(), and step().

◆ m_nelts_per_pattern

unsigned int vector_builder< rtx, machine_mode, rtx_vector_builder >::m_nelts_per_pattern

privateinherited

◆ m_npatterns

unsigned int vector_builder< rtx, machine_mode, rtx_vector_builder >::m_npatterns

privateinherited

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Static Private Member Functions

Private Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ parent

Constructor & Destructor Documentation

◆ rtx_vector_builder() [1/2]

◆ rtx_vector_builder() [2/2]

Member Function Documentation

◆ allow_steps_p()

◆ apply_step()

◆ binary_encoded_nelts()

◆ build() [1/2]

◆ build() [2/2]

◆ can_elide_p()

◆ count_dups()

◆ derived() [1/2]

◆ derived() [2/2]

◆ elt()

◆ encoded_full_vector_p()

◆ encoded_nelts()

◆ equal_p()

◆ finalize()

◆ find_cached_value()

◆ full_nelts()

◆ integral_p()

◆ mode()

◆ nelts_of()

◆ nelts_per_pattern()

◆ nelts_per_pattern_of()

◆ new_binary_operation()

◆ new_unary_operation()

◆ new_vector() [1/2]

◆ new_vector() [2/2]

◆ note_representative()

◆ npatterns()

◆ npatterns_of()

◆ operator!=()

◆ operator==()

◆ repeating_sequence_p()

◆ reshape()

◆ shape_nelts()

◆ step()

◆ stepped_sequence_p()

◆ to_vec_legacy()

◆ try_npatterns()

Friends And Related Symbol Documentation

◆ vector_builder< rtx, machine_mode, rtx_vector_builder >

Field Documentation

◆ m_auto

◆ m_data

◆ m_full_nelts

◆ m_mode

◆ m_nelts_per_pattern

◆ m_npatterns