b7053b80f2
If there's a better way to provide access to ir_array_refcount_entry private members to the test functions, I am very interested to know about it. Signed-off-by: Ian Romanick <ian.d.romanick@intel.com> Cc: Francisco Jerez <currojerez@riseup.net> Cc: mesa-stable@lists.freedesktop.org Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/*
|
|
* Copyright © 2016 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/**
|
|
* \file ir_array_refcount.h
|
|
*
|
|
* Provides a visitor which produces a list of variables referenced.
|
|
*/
|
|
|
|
#include "ir.h"
|
|
#include "ir_visitor.h"
|
|
#include "compiler/glsl_types.h"
|
|
#include "util/bitset.h"
|
|
|
|
class ir_array_refcount_entry
|
|
{
|
|
public:
|
|
ir_array_refcount_entry(ir_variable *var);
|
|
~ir_array_refcount_entry();
|
|
|
|
ir_variable *var; /* The key: the variable's pointer. */
|
|
|
|
/** Has the variable been referenced? */
|
|
bool is_referenced;
|
|
|
|
/** Has a linearized array index been referenced? */
|
|
bool is_linearized_index_referenced(unsigned linearized_index) const
|
|
{
|
|
assert(bits != 0);
|
|
assert(linearized_index <= num_bits);
|
|
|
|
return BITSET_TEST(bits, linearized_index);
|
|
}
|
|
|
|
private:
|
|
/** Set of bit-flags to note which array elements have been accessed. */
|
|
BITSET_WORD *bits;
|
|
|
|
/**
|
|
* Total number of bits referenced by \c bits.
|
|
*
|
|
* Also the total number of array(s-of-arrays) elements of \c var.
|
|
*/
|
|
unsigned num_bits;
|
|
|
|
friend class array_refcount_test;
|
|
};
|
|
|
|
class ir_array_refcount_visitor : public ir_hierarchical_visitor {
|
|
public:
|
|
ir_array_refcount_visitor(void);
|
|
~ir_array_refcount_visitor(void);
|
|
|
|
virtual ir_visitor_status visit(ir_dereference_variable *);
|
|
|
|
virtual ir_visitor_status visit_enter(ir_function_signature *);
|
|
|
|
/**
|
|
* Find variable in the hash table, and insert it if not present
|
|
*/
|
|
ir_array_refcount_entry *get_variable_entry(ir_variable *var);
|
|
|
|
/**
|
|
* Hash table mapping ir_variable to ir_array_refcount_entry.
|
|
*/
|
|
struct hash_table *ht;
|
|
|
|
void *mem_ctx;
|
|
};
|