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37 #include "ir_visitor.h"
38 #include "ir_hierarchical_visitor.h"
41 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
50 ir_type_dereference_array
,
51 ir_type_dereference_record
,
52 ir_type_dereference_variable
,
56 ir_type_function_signature
,
63 ir_type_max
, /**< maximum ir_type enum number, for validation */
67 * Base class of all IR instructions
69 class ir_instruction
: public exec_node
{
71 enum ir_node_type ir_type
;
72 const struct glsl_type
*type
;
74 /** ir_print_visitor helper for debugging. */
75 void print(void) const;
77 virtual void accept(ir_visitor
*) = 0;
78 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*) = 0;
79 virtual ir_instruction
*clone(struct hash_table
*ht
) const = 0;
82 * \name IR instruction downcast functions
84 * These functions either cast the object to a derived class or return
85 * \c NULL if the object's type does not match the specified derived class.
86 * Additional downcast functions will be added as needed.
89 virtual class ir_variable
* as_variable() { return NULL
; }
90 virtual class ir_function
* as_function() { return NULL
; }
91 virtual class ir_dereference
* as_dereference() { return NULL
; }
92 virtual class ir_dereference_array
* as_dereference_array() { return NULL
; }
93 virtual class ir_dereference_variable
*as_dereference_variable() { return NULL
; }
94 virtual class ir_expression
* as_expression() { return NULL
; }
95 virtual class ir_rvalue
* as_rvalue() { return NULL
; }
96 virtual class ir_loop
* as_loop() { return NULL
; }
97 virtual class ir_assignment
* as_assignment() { return NULL
; }
98 virtual class ir_call
* as_call() { return NULL
; }
99 virtual class ir_return
* as_return() { return NULL
; }
100 virtual class ir_if
* as_if() { return NULL
; }
101 virtual class ir_swizzle
* as_swizzle() { return NULL
; }
102 virtual class ir_constant
* as_constant() { return NULL
; }
108 ir_type
= ir_type_unset
;
113 class ir_rvalue
: public ir_instruction
{
115 virtual ir_rvalue
*clone(struct hash_table
*) const = 0;
117 virtual ir_constant
*constant_expression_value() = 0;
119 virtual ir_rvalue
* as_rvalue()
124 virtual bool is_lvalue()
130 * Get the variable that is ultimately referenced by an r-value
132 virtual ir_variable
*variable_referenced()
139 * If an r-value is a reference to a whole variable, get that variable
142 * Pointer to a variable that is completely dereferenced by the r-value. If
143 * the r-value is not a dereference or the dereference does not access the
144 * entire variable (i.e., it's just one array element, struct field), \c NULL
147 virtual ir_variable
*whole_variable_referenced()
160 enum ir_variable_mode
{
166 ir_var_temporary
/**< Temporary variable generated during compilation. */
169 enum ir_variable_interpolation
{
176 class ir_variable
: public ir_instruction
{
178 ir_variable(const struct glsl_type
*, const char *, ir_variable_mode
);
180 virtual ir_variable
*clone(struct hash_table
*ht
) const;
182 virtual ir_variable
*as_variable()
187 virtual void accept(ir_visitor
*v
)
192 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
196 * Get the string value for the interpolation qualifier
199 * If none of \c shader_in or \c shader_out is set, an empty string will
200 * be returned. Otherwise the string that would be used in a shader to
201 * specify \c mode will be returned.
203 const char *interpolation_string() const;
206 * Calculate the number of slots required to hold this variable
208 * This is used to determine how many uniform or varying locations a variable
209 * occupies. The count is in units of floating point components.
211 unsigned component_slots() const;
216 * Highest element accessed with a constant expression array index
218 * Not used for non-array variables.
220 unsigned max_array_access
;
222 unsigned read_only
:1;
224 unsigned invariant
:1;
225 /** If the variable is initialized outside of the scope of the shader */
226 unsigned shader_in
:1;
228 * If the variable value is later used outside of the scope of the shader.
230 unsigned shader_out
:1;
233 unsigned interpolation
:2;
236 * Flag that the whole array is assignable
238 * In GLSL 1.20 and later whole arrays are assignable (and comparable for
239 * equality). This flag enables this behavior.
241 unsigned array_lvalue
:1;
244 * Storage location of the base of this variable
246 * The precise meaning of this field depends on the nature of the variable.
248 * - Vertex shader input: one of the values from \c gl_vert_attrib.
249 * - Vertex shader output: one of the values from \c gl_vert_result.
250 * - Fragment shader input: one of the values from \c gl_frag_attrib.
251 * - Fragment shader output: one of the values from \c gl_frag_result.
252 * - Uniforms: Per-stage uniform slot number.
253 * - Other: This field is not currently used.
255 * If the variable is a uniform, shader input, or shader output, and the
256 * slot has not been assigned, the value will be -1.
261 * Emit a warning if this variable is accessed.
263 const char *warn_extension
;
266 * Value assigned in the initializer of a variable declared "const"
268 ir_constant
*constant_value
;
274 * The representation of a function instance; may be the full definition or
275 * simply a prototype.
277 class ir_function_signature
: public ir_instruction
{
278 /* An ir_function_signature will be part of the list of signatures in
282 ir_function_signature(const glsl_type
*return_type
);
284 virtual ir_function_signature
*clone(struct hash_table
*ht
) const;
286 virtual void accept(ir_visitor
*v
)
291 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
294 * Get the name of the function for which this is a signature
296 const char *function_name() const;
299 * Get a handle to the function for which this is a signature
301 * There is no setter function, this function returns a \c const pointer,
302 * and \c ir_function_signature::_function is private for a reason. The
303 * only way to make a connection between a function and function signature
304 * is via \c ir_function::add_signature. This helps ensure that certain
305 * invariants (i.e., a function signature is in the list of signatures for
306 * its \c _function) are met.
308 * \sa ir_function::add_signature
310 inline const class ir_function
*function() const
312 return this->_function
;
316 * Check whether the qualifiers match between this signature's parameters
317 * and the supplied parameter list. If not, returns the name of the first
318 * parameter with mismatched qualifiers (for use in error messages).
320 const char *qualifiers_match(exec_list
*params
);
323 * Replace the current parameter list with the given one. This is useful
324 * if the current information came from a prototype, and either has invalid
325 * or missing parameter names.
327 void replace_parameters(exec_list
*new_params
);
330 * Function return type.
332 * \note This discards the optional precision qualifier.
334 const struct glsl_type
*return_type
;
337 * List of ir_variable of function parameters.
339 * This represents the storage. The paramaters passed in a particular
340 * call will be in ir_call::actual_paramaters.
342 struct exec_list parameters
;
344 /** Whether or not this function has a body (which may be empty). */
345 unsigned is_defined
:1;
347 /** Whether or not this function signature is a built-in. */
348 unsigned is_built_in
:1;
350 /** Body of instructions in the function. */
351 struct exec_list body
;
354 /** Function of which this signature is one overload. */
355 class ir_function
*_function
;
357 friend class ir_function
;
362 * Header for tracking multiple overloaded functions with the same name.
363 * Contains a list of ir_function_signatures representing each of the
366 class ir_function
: public ir_instruction
{
368 ir_function(const char *name
);
370 virtual ir_function
*clone(struct hash_table
*ht
) const;
372 virtual ir_function
*as_function()
377 virtual void accept(ir_visitor
*v
)
382 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
384 void add_signature(ir_function_signature
*sig
)
386 sig
->_function
= this;
387 this->signatures
.push_tail(sig
);
391 * Get an iterator for the set of function signatures
393 exec_list_iterator
iterator()
395 return signatures
.iterator();
399 * Find a signature that matches a set of actual parameters, taking implicit
400 * conversions into account.
402 ir_function_signature
*matching_signature(const exec_list
*actual_param
);
405 * Find a signature that exactly matches a set of actual parameters without
406 * any implicit type conversions.
408 ir_function_signature
*exact_matching_signature(const exec_list
*actual_ps
);
411 * Name of the function.
417 * List of ir_function_signature for each overloaded function with this name.
419 struct exec_list signatures
;
422 inline const char *ir_function_signature::function_name() const
424 return this->_function
->name
;
430 * IR instruction representing high-level if-statements
432 class ir_if
: public ir_instruction
{
434 ir_if(ir_rvalue
*condition
)
435 : condition(condition
)
437 ir_type
= ir_type_if
;
440 virtual ir_if
*clone(struct hash_table
*ht
) const;
442 virtual ir_if
*as_if()
447 virtual void accept(ir_visitor
*v
)
452 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
454 ir_rvalue
*condition
;
455 /** List of ir_instruction for the body of the then branch */
456 exec_list then_instructions
;
457 /** List of ir_instruction for the body of the else branch */
458 exec_list else_instructions
;
463 * IR instruction representing a high-level loop structure.
465 class ir_loop
: public ir_instruction
{
467 ir_loop() : from(NULL
), to(NULL
), increment(NULL
), counter(NULL
)
469 ir_type
= ir_type_loop
;
472 virtual ir_loop
*clone(struct hash_table
*ht
) const;
474 virtual void accept(ir_visitor
*v
)
479 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
481 virtual ir_loop
*as_loop()
487 * Get an iterator for the instructions of the loop body
489 exec_list_iterator
iterator()
491 return body_instructions
.iterator();
494 /** List of ir_instruction that make up the body of the loop. */
495 exec_list body_instructions
;
498 * \name Loop counter and controls
503 ir_rvalue
*increment
;
504 ir_variable
*counter
;
509 class ir_assignment
: public ir_rvalue
{
511 ir_assignment(ir_rvalue
*lhs
, ir_rvalue
*rhs
, ir_rvalue
*condition
);
513 virtual ir_assignment
*clone(struct hash_table
*ht
) const;
515 virtual ir_constant
*constant_expression_value();
517 virtual void accept(ir_visitor
*v
)
522 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
524 virtual ir_assignment
* as_assignment()
530 * Left-hand side of the assignment.
535 * Value being assigned
540 * Optional condition for the assignment.
542 ir_rvalue
*condition
;
545 /* Update ir_expression::num_operands() and operator_strs when
546 * updating this list.
548 enum ir_expression_operation
{
561 ir_unop_f2i
, /**< Float-to-integer conversion. */
562 ir_unop_i2f
, /**< Integer-to-float conversion. */
563 ir_unop_f2b
, /**< Float-to-boolean conversion */
564 ir_unop_b2f
, /**< Boolean-to-float conversion */
565 ir_unop_i2b
, /**< int-to-boolean conversion */
566 ir_unop_b2i
, /**< Boolean-to-int conversion */
567 ir_unop_u2f
, /**< Unsigned-to-float conversion. */
570 * \name Unary floating-point rounding operations.
580 * \name Trigonometric operations.
588 * \name Partial derivatives.
601 * Takes one of two combinations of arguments:
606 * Does not take integer types.
611 * \name Binary comparison operators
623 * \name Bit-wise binary operations.
645 class ir_expression
: public ir_rvalue
{
647 ir_expression(int op
, const struct glsl_type
*type
,
648 ir_rvalue
*, ir_rvalue
*);
650 virtual ir_expression
*as_expression()
655 virtual ir_expression
*clone(struct hash_table
*ht
) const;
657 virtual ir_constant
*constant_expression_value();
659 static unsigned int get_num_operands(ir_expression_operation
);
660 unsigned int get_num_operands() const
662 return get_num_operands(operation
);
666 * Return a string representing this expression's operator.
668 const char *operator_string();
671 * Do a reverse-lookup to translate the given string into an operator.
673 static ir_expression_operation
get_operator(const char *);
675 virtual void accept(ir_visitor
*v
)
680 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
682 ir_expression_operation operation
;
683 ir_rvalue
*operands
[2];
688 * IR instruction representing a function call
690 class ir_call
: public ir_rvalue
{
692 ir_call(ir_function_signature
*callee
, exec_list
*actual_parameters
)
695 ir_type
= ir_type_call
;
696 assert(callee
->return_type
!= NULL
);
697 type
= callee
->return_type
;
698 actual_parameters
->move_nodes_to(& this->actual_parameters
);
701 virtual ir_call
*clone(struct hash_table
*ht
) const;
703 virtual ir_constant
*constant_expression_value();
705 virtual ir_call
*as_call()
710 virtual void accept(ir_visitor
*v
)
715 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
718 * Get a generic ir_call object when an error occurs
720 * Any allocation will be performed with 'ctx' as talloc owner.
722 static ir_call
*get_error_instruction(void *ctx
);
725 * Get an iterator for the set of acutal parameters
727 exec_list_iterator
iterator()
729 return actual_parameters
.iterator();
733 * Get the name of the function being called.
735 const char *callee_name() const
737 return callee
->function_name();
740 ir_function_signature
*get_callee()
746 * Set the function call target
748 void set_callee(ir_function_signature
*sig
);
751 * Generates an inline version of the function before @ir,
752 * returning the return value of the function.
754 ir_rvalue
*generate_inline(ir_instruction
*ir
);
756 /* List of ir_rvalue of paramaters passed in this call. */
757 exec_list actual_parameters
;
763 this->ir_type
= ir_type_call
;
766 ir_function_signature
*callee
;
771 * \name Jump-like IR instructions.
773 * These include \c break, \c continue, \c return, and \c discard.
776 class ir_jump
: public ir_instruction
{
780 ir_type
= ir_type_unset
;
784 class ir_return
: public ir_jump
{
789 this->ir_type
= ir_type_return
;
792 ir_return(ir_rvalue
*value
)
795 this->ir_type
= ir_type_return
;
798 virtual ir_return
*clone(struct hash_table
*) const;
800 virtual ir_return
*as_return()
805 ir_rvalue
*get_value() const
810 virtual void accept(ir_visitor
*v
)
815 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
822 * Jump instructions used inside loops
824 * These include \c break and \c continue. The \c break within a loop is
825 * different from the \c break within a switch-statement.
829 class ir_loop_jump
: public ir_jump
{
836 ir_loop_jump(jump_mode mode
)
838 this->ir_type
= ir_type_loop_jump
;
843 virtual ir_loop_jump
*clone(struct hash_table
*) const;
845 virtual void accept(ir_visitor
*v
)
850 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
852 bool is_break() const
854 return mode
== jump_break
;
857 bool is_continue() const
859 return mode
== jump_continue
;
862 /** Mode selector for the jump instruction. */
865 /** Loop containing this break instruction. */
870 * IR instruction representing discard statements.
872 class ir_discard
: public ir_jump
{
876 this->ir_type
= ir_type_discard
;
877 this->condition
= NULL
;
880 ir_discard(ir_rvalue
*cond
)
882 this->condition
= cond
;
885 virtual ir_discard
*clone(struct hash_table
*ht
) const;
887 virtual void accept(ir_visitor
*v
)
892 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
894 ir_rvalue
*condition
;
900 * Texture sampling opcodes used in ir_texture
902 enum ir_texture_opcode
{
903 ir_tex
, /* Regular texture look-up */
904 ir_txb
, /* Texture look-up with LOD bias */
905 ir_txl
, /* Texture look-up with explicit LOD */
906 ir_txd
, /* Texture look-up with partial derivatvies */
907 ir_txf
/* Texel fetch with explicit LOD */
912 * IR instruction to sample a texture
914 * The specific form of the IR instruction depends on the \c mode value
915 * selected from \c ir_texture_opcodes. In the printed IR, these will
919 * | Projection divisor
920 * | | Shadow comparitor
923 * (tex (sampler) (coordinate) (0 0 0) (1) ( ))
924 * (txb (sampler) (coordinate) (0 0 0) (1) ( ) (bias))
925 * (txl (sampler) (coordinate) (0 0 0) (1) ( ) (lod))
926 * (txd (sampler) (coordinate) (0 0 0) (1) ( ) (dPdx dPdy))
927 * (txf (sampler) (coordinate) (0 0 0) (lod))
929 class ir_texture
: public ir_rvalue
{
931 ir_texture(enum ir_texture_opcode op
)
932 : op(op
), projector(NULL
), shadow_comparitor(NULL
)
934 this->ir_type
= ir_type_texture
;
937 virtual ir_texture
*clone(struct hash_table
*) const;
939 virtual ir_constant
*constant_expression_value();
941 virtual void accept(ir_visitor
*v
)
946 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
949 * Return a string representing the ir_texture_opcode.
951 const char *opcode_string();
953 /** Set the sampler and infer the type. */
954 void set_sampler(ir_dereference
*sampler
);
957 * Do a reverse-lookup to translate a string into an ir_texture_opcode.
959 static ir_texture_opcode
get_opcode(const char *);
961 enum ir_texture_opcode op
;
963 /** Sampler to use for the texture access. */
964 ir_dereference
*sampler
;
966 /** Texture coordinate to sample */
967 ir_rvalue
*coordinate
;
970 * Value used for projective divide.
972 * If there is no projective divide (the common case), this will be
973 * \c NULL. Optimization passes should check for this to point to a constant
974 * of 1.0 and replace that with \c NULL.
976 ir_rvalue
*projector
;
979 * Coordinate used for comparison on shadow look-ups.
981 * If there is no shadow comparison, this will be \c NULL. For the
982 * \c ir_txf opcode, this *must* be \c NULL.
984 ir_rvalue
*shadow_comparitor
;
986 /** Explicit texel offsets. */
987 signed char offsets
[3];
990 ir_rvalue
*lod
; /**< Floating point LOD */
991 ir_rvalue
*bias
; /**< Floating point LOD bias */
993 ir_rvalue
*dPdx
; /**< Partial derivative of coordinate wrt X */
994 ir_rvalue
*dPdy
; /**< Partial derivative of coordinate wrt Y */
1000 struct ir_swizzle_mask
{
1007 * Number of components in the swizzle.
1009 unsigned num_components
:3;
1012 * Does the swizzle contain duplicate components?
1014 * L-value swizzles cannot contain duplicate components.
1016 unsigned has_duplicates
:1;
1020 class ir_swizzle
: public ir_rvalue
{
1022 ir_swizzle(ir_rvalue
*, unsigned x
, unsigned y
, unsigned z
, unsigned w
,
1025 ir_swizzle(ir_rvalue
*val
, const unsigned *components
, unsigned count
);
1027 ir_swizzle(ir_rvalue
*val
, ir_swizzle_mask mask
);
1029 virtual ir_swizzle
*clone(struct hash_table
*) const;
1031 virtual ir_constant
*constant_expression_value();
1033 virtual ir_swizzle
*as_swizzle()
1039 * Construct an ir_swizzle from the textual representation. Can fail.
1041 static ir_swizzle
*create(ir_rvalue
*, const char *, unsigned vector_length
);
1043 virtual void accept(ir_visitor
*v
)
1048 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1052 return val
->is_lvalue() && !mask
.has_duplicates
;
1056 * Get the variable that is ultimately referenced by an r-value
1058 virtual ir_variable
*variable_referenced();
1061 ir_swizzle_mask mask
;
1065 * Initialize the mask component of a swizzle
1067 * This is used by the \c ir_swizzle constructors.
1069 void init_mask(const unsigned *components
, unsigned count
);
1073 class ir_dereference
: public ir_rvalue
{
1075 virtual ir_dereference
*clone(struct hash_table
*) const = 0;
1077 virtual ir_dereference
*as_dereference()
1085 * Get the variable that is ultimately referenced by an r-value
1087 virtual ir_variable
*variable_referenced() = 0;
1091 class ir_dereference_variable
: public ir_dereference
{
1093 ir_dereference_variable(ir_variable
*var
);
1095 virtual ir_dereference_variable
*clone(struct hash_table
*) const;
1097 virtual ir_constant
*constant_expression_value();
1099 virtual ir_dereference_variable
*as_dereference_variable()
1105 * Get the variable that is ultimately referenced by an r-value
1107 virtual ir_variable
*variable_referenced()
1112 virtual ir_variable
*whole_variable_referenced()
1114 /* ir_dereference_variable objects always dereference the entire
1115 * variable. However, if this dereference is dereferenced by anything
1116 * else, the complete deferefernce chain is not a whole-variable
1117 * dereference. This method should only be called on the top most
1118 * ir_rvalue in a dereference chain.
1123 virtual void accept(ir_visitor
*v
)
1128 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1131 * Object being dereferenced.
1137 class ir_dereference_array
: public ir_dereference
{
1139 ir_dereference_array(ir_rvalue
*value
, ir_rvalue
*array_index
);
1141 ir_dereference_array(ir_variable
*var
, ir_rvalue
*array_index
);
1143 virtual ir_dereference_array
*clone(struct hash_table
*) const;
1145 virtual ir_constant
*constant_expression_value();
1147 virtual ir_dereference_array
*as_dereference_array()
1153 * Get the variable that is ultimately referenced by an r-value
1155 virtual ir_variable
*variable_referenced()
1157 return this->array
->variable_referenced();
1160 virtual void accept(ir_visitor
*v
)
1165 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1168 ir_rvalue
*array_index
;
1171 void set_array(ir_rvalue
*value
);
1175 class ir_dereference_record
: public ir_dereference
{
1177 ir_dereference_record(ir_rvalue
*value
, const char *field
);
1179 ir_dereference_record(ir_variable
*var
, const char *field
);
1181 virtual ir_dereference_record
*clone(struct hash_table
*) const;
1183 virtual ir_constant
*constant_expression_value();
1186 * Get the variable that is ultimately referenced by an r-value
1188 virtual ir_variable
*variable_referenced()
1190 return this->record
->variable_referenced();
1193 virtual void accept(ir_visitor
*v
)
1198 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1206 * Data stored in an ir_constant
1208 union ir_constant_data
{
1216 class ir_constant
: public ir_rvalue
{
1218 ir_constant(const struct glsl_type
*type
, const ir_constant_data
*data
);
1219 ir_constant(bool b
);
1220 ir_constant(unsigned int u
);
1222 ir_constant(float f
);
1225 * Construct an ir_constant from a list of ir_constant values
1227 ir_constant(const struct glsl_type
*type
, exec_list
*values
);
1230 * Construct an ir_constant from a scalar component of another ir_constant
1232 * The new \c ir_constant inherits the type of the component from the
1236 * In the case of a matrix constant, the new constant is a scalar, \b not
1239 ir_constant(const ir_constant
*c
, unsigned i
);
1241 virtual ir_constant
*clone(struct hash_table
*) const;
1243 virtual ir_constant
*constant_expression_value();
1245 virtual ir_constant
*as_constant()
1250 virtual void accept(ir_visitor
*v
)
1255 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1258 * Get a particular component of a constant as a specific type
1260 * This is useful, for example, to get a value from an integer constant
1261 * as a float or bool. This appears frequently when constructors are
1262 * called with all constant parameters.
1265 bool get_bool_component(unsigned i
) const;
1266 float get_float_component(unsigned i
) const;
1267 int get_int_component(unsigned i
) const;
1268 unsigned get_uint_component(unsigned i
) const;
1271 ir_constant
*get_record_field(const char *name
);
1274 * Determine whether a constant has the same value as another constant
1276 bool has_value(const ir_constant
*) const;
1279 * Value of the constant.
1281 * The field used to back the values supplied by the constant is determined
1282 * by the type associated with the \c ir_instruction. Constants may be
1283 * scalars, vectors, or matrices.
1285 union ir_constant_data value
;
1287 exec_list components
;
1291 * Parameterless constructor only used by the clone method
1297 visit_exec_list(exec_list
*list
, ir_visitor
*visitor
);
1299 void validate_ir_tree(exec_list
*instructions
);
1302 * Make a clone of each IR instruction in a list
1304 * \param in List of IR instructions that are to be cloned
1305 * \param out List to hold the cloned instructions
1308 clone_ir_list(exec_list
*out
, const exec_list
*in
);
1311 _mesa_glsl_initialize_variables(exec_list
*instructions
,
1312 struct _mesa_glsl_parse_state
*state
);
1315 _mesa_glsl_initialize_functions(exec_list
*instructions
,
1316 struct _mesa_glsl_parse_state
*state
);
1319 reparent_ir(exec_list
*list
, void *mem_ctx
);
1321 class glsl_symbol_table
;
1324 import_prototypes(const exec_list
*source
, exec_list
*dest
,
1325 class glsl_symbol_table
*symbols
, void *mem_ctx
);