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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
{
168 enum ir_variable_interpolation
{
175 class ir_variable
: public ir_instruction
{
177 ir_variable(const struct glsl_type
*, const char *);
179 virtual ir_variable
*clone(struct hash_table
*ht
) const;
181 virtual ir_variable
*as_variable()
186 virtual void accept(ir_visitor
*v
)
191 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
195 * Get the string value for the interpolation qualifier
198 * If none of \c shader_in or \c shader_out is set, an empty string will
199 * be returned. Otherwise the string that would be used in a shader to
200 * specify \c mode will be returned.
202 const char *interpolation_string() const;
205 * Calculate the number of slots required to hold this variable
207 * This is used to determine how many uniform or varying locations a variable
208 * occupies. The count is in units of floating point components.
210 unsigned component_slots() const;
215 * Highest element accessed with a constant expression array index
217 * Not used for non-array variables.
219 unsigned max_array_access
;
221 unsigned read_only
:1;
223 unsigned invariant
:1;
224 /** If the variable is initialized outside of the scope of the shader */
225 unsigned shader_in
:1;
227 * If the variable value is later used outside of the scope of the shader.
229 unsigned shader_out
:1;
232 unsigned interpolation
:2;
235 * Flag that the whole array is assignable
237 * In GLSL 1.20 and later whole arrays are assignable (and comparable for
238 * equality). This flag enables this behavior.
240 unsigned array_lvalue
:1;
243 * Storage location of the base of this variable
245 * The precise meaning of this field depends on the nature of the variable.
247 * - Vertex shader input: one of the values from \c gl_vert_attrib.
248 * - Vertex shader output: one of the values from \c gl_vert_result.
249 * - Fragment shader input: one of the values from \c gl_frag_attrib.
250 * - Fragment shader output: one of the values from \c gl_frag_result.
251 * - Uniforms: Per-stage uniform slot number.
252 * - Other: This field is not currently used.
254 * If the variable is a uniform, shader input, or shader output, and the
255 * slot has not been assigned, the value will be -1.
260 * Emit a warning if this variable is accessed.
262 const char *warn_extension
;
265 * Value assigned in the initializer of a variable declared "const"
267 ir_constant
*constant_value
;
273 * The representation of a function instance; may be the full definition or
274 * simply a prototype.
276 class ir_function_signature
: public ir_instruction
{
277 /* An ir_function_signature will be part of the list of signatures in
281 ir_function_signature(const glsl_type
*return_type
);
283 virtual ir_function_signature
*clone(struct hash_table
*ht
) const;
285 virtual void accept(ir_visitor
*v
)
290 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
293 * Get the name of the function for which this is a signature
295 const char *function_name() const;
298 * Get a handle to the function for which this is a signature
300 * There is no setter function, this function returns a \c const pointer,
301 * and \c ir_function_signature::_function is private for a reason. The
302 * only way to make a connection between a function and function signature
303 * is via \c ir_function::add_signature. This helps ensure that certain
304 * invariants (i.e., a function signature is in the list of signatures for
305 * its \c _function) are met.
307 * \sa ir_function::add_signature
309 inline const class ir_function
*function() const
311 return this->_function
;
315 * Check whether the qualifiers match between this signature's parameters
316 * and the supplied parameter list. If not, returns the name of the first
317 * parameter with mismatched qualifiers (for use in error messages).
319 const char *qualifiers_match(exec_list
*params
);
322 * Replace the current parameter list with the given one. This is useful
323 * if the current information came from a prototype, and either has invalid
324 * or missing parameter names.
326 void replace_parameters(exec_list
*new_params
);
329 * Function return type.
331 * \note This discards the optional precision qualifier.
333 const struct glsl_type
*return_type
;
336 * List of ir_variable of function parameters.
338 * This represents the storage. The paramaters passed in a particular
339 * call will be in ir_call::actual_paramaters.
341 struct exec_list parameters
;
343 /** Whether or not this function has a body (which may be empty). */
344 unsigned is_defined
:1;
346 /** Whether or not this function signature is a built-in. */
347 unsigned is_built_in
:1;
349 /** Body of instructions in the function. */
350 struct exec_list body
;
353 /** Function of which this signature is one overload. */
354 class ir_function
*_function
;
356 friend class ir_function
;
361 * Header for tracking multiple overloaded functions with the same name.
362 * Contains a list of ir_function_signatures representing each of the
365 class ir_function
: public ir_instruction
{
367 ir_function(const char *name
);
369 virtual ir_function
*clone(struct hash_table
*ht
) const;
371 virtual ir_function
*as_function()
376 virtual void accept(ir_visitor
*v
)
381 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
383 void add_signature(ir_function_signature
*sig
)
385 sig
->_function
= this;
386 this->signatures
.push_tail(sig
);
390 * Get an iterator for the set of function signatures
392 exec_list_iterator
iterator()
394 return signatures
.iterator();
398 * Find a signature that matches a set of actual parameters, taking implicit
399 * conversions into account.
401 ir_function_signature
*matching_signature(const exec_list
*actual_param
);
404 * Find a signature that exactly matches a set of actual parameters without
405 * any implicit type conversions.
407 ir_function_signature
*exact_matching_signature(const exec_list
*actual_ps
);
410 * Name of the function.
416 * List of ir_function_signature for each overloaded function with this name.
418 struct exec_list signatures
;
421 inline const char *ir_function_signature::function_name() const
423 return this->_function
->name
;
429 * IR instruction representing high-level if-statements
431 class ir_if
: public ir_instruction
{
433 ir_if(ir_rvalue
*condition
)
434 : condition(condition
)
436 ir_type
= ir_type_if
;
439 virtual ir_if
*clone(struct hash_table
*ht
) const;
441 virtual ir_if
*as_if()
446 virtual void accept(ir_visitor
*v
)
451 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
453 ir_rvalue
*condition
;
454 /** List of ir_instruction for the body of the then branch */
455 exec_list then_instructions
;
456 /** List of ir_instruction for the body of the else branch */
457 exec_list else_instructions
;
462 * IR instruction representing a high-level loop structure.
464 class ir_loop
: public ir_instruction
{
466 ir_loop() : from(NULL
), to(NULL
), increment(NULL
), counter(NULL
)
468 ir_type
= ir_type_loop
;
471 virtual ir_loop
*clone(struct hash_table
*ht
) const;
473 virtual void accept(ir_visitor
*v
)
478 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
480 virtual ir_loop
*as_loop()
486 * Get an iterator for the instructions of the loop body
488 exec_list_iterator
iterator()
490 return body_instructions
.iterator();
493 /** List of ir_instruction that make up the body of the loop. */
494 exec_list body_instructions
;
497 * \name Loop counter and controls
502 ir_rvalue
*increment
;
503 ir_variable
*counter
;
508 class ir_assignment
: public ir_rvalue
{
510 ir_assignment(ir_rvalue
*lhs
, ir_rvalue
*rhs
, ir_rvalue
*condition
);
512 virtual ir_assignment
*clone(struct hash_table
*ht
) const;
514 virtual ir_constant
*constant_expression_value();
516 virtual void accept(ir_visitor
*v
)
521 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
523 virtual ir_assignment
* as_assignment()
529 * Left-hand side of the assignment.
534 * Value being assigned
539 * Optional condition for the assignment.
541 ir_rvalue
*condition
;
544 /* Update ir_expression::num_operands() and operator_strs when
545 * updating this list.
547 enum ir_expression_operation
{
560 ir_unop_f2i
, /**< Float-to-integer conversion. */
561 ir_unop_i2f
, /**< Integer-to-float conversion. */
562 ir_unop_f2b
, /**< Float-to-boolean conversion */
563 ir_unop_b2f
, /**< Boolean-to-float conversion */
564 ir_unop_i2b
, /**< int-to-boolean conversion */
565 ir_unop_b2i
, /**< Boolean-to-int conversion */
566 ir_unop_u2f
, /**< Unsigned-to-float conversion. */
569 * \name Unary floating-point rounding operations.
579 * \name Trigonometric operations.
587 * \name Partial derivatives.
600 * Takes one of two combinations of arguments:
605 * Does not take integer types.
610 * \name Binary comparison operators
622 * \name Bit-wise binary operations.
644 class ir_expression
: public ir_rvalue
{
646 ir_expression(int op
, const struct glsl_type
*type
,
647 ir_rvalue
*, ir_rvalue
*);
649 virtual ir_expression
*as_expression()
654 virtual ir_expression
*clone(struct hash_table
*ht
) const;
656 virtual ir_constant
*constant_expression_value();
658 static unsigned int get_num_operands(ir_expression_operation
);
659 unsigned int get_num_operands() const
661 return get_num_operands(operation
);
665 * Return a string representing this expression's operator.
667 const char *operator_string();
670 * Do a reverse-lookup to translate the given string into an operator.
672 static ir_expression_operation
get_operator(const char *);
674 virtual void accept(ir_visitor
*v
)
679 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
681 ir_expression_operation operation
;
682 ir_rvalue
*operands
[2];
687 * IR instruction representing a function call
689 class ir_call
: public ir_rvalue
{
691 ir_call(ir_function_signature
*callee
, exec_list
*actual_parameters
)
694 ir_type
= ir_type_call
;
695 assert(callee
->return_type
!= NULL
);
696 type
= callee
->return_type
;
697 actual_parameters
->move_nodes_to(& this->actual_parameters
);
700 virtual ir_call
*clone(struct hash_table
*ht
) const;
702 virtual ir_constant
*constant_expression_value();
704 virtual ir_call
*as_call()
709 virtual void accept(ir_visitor
*v
)
714 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
717 * Get a generic ir_call object when an error occurs
719 * Any allocation will be performed with 'ctx' as talloc owner.
721 static ir_call
*get_error_instruction(void *ctx
);
724 * Get an iterator for the set of acutal parameters
726 exec_list_iterator
iterator()
728 return actual_parameters
.iterator();
732 * Get the name of the function being called.
734 const char *callee_name() const
736 return callee
->function_name();
739 ir_function_signature
*get_callee()
745 * Set the function call target
747 void set_callee(ir_function_signature
*sig
);
750 * Generates an inline version of the function before @ir,
751 * returning the return value of the function.
753 ir_rvalue
*generate_inline(ir_instruction
*ir
);
755 /* List of ir_rvalue of paramaters passed in this call. */
756 exec_list actual_parameters
;
762 this->ir_type
= ir_type_call
;
765 ir_function_signature
*callee
;
770 * \name Jump-like IR instructions.
772 * These include \c break, \c continue, \c return, and \c discard.
775 class ir_jump
: public ir_instruction
{
779 ir_type
= ir_type_unset
;
783 class ir_return
: public ir_jump
{
788 this->ir_type
= ir_type_return
;
791 ir_return(ir_rvalue
*value
)
794 this->ir_type
= ir_type_return
;
797 virtual ir_return
*clone(struct hash_table
*) const;
799 virtual ir_return
*as_return()
804 ir_rvalue
*get_value() const
809 virtual void accept(ir_visitor
*v
)
814 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
821 * Jump instructions used inside loops
823 * These include \c break and \c continue. The \c break within a loop is
824 * different from the \c break within a switch-statement.
828 class ir_loop_jump
: public ir_jump
{
835 ir_loop_jump(jump_mode mode
)
837 this->ir_type
= ir_type_loop_jump
;
842 virtual ir_loop_jump
*clone(struct hash_table
*) const;
844 virtual void accept(ir_visitor
*v
)
849 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
851 bool is_break() const
853 return mode
== jump_break
;
856 bool is_continue() const
858 return mode
== jump_continue
;
861 /** Mode selector for the jump instruction. */
864 /** Loop containing this break instruction. */
869 * IR instruction representing discard statements.
871 class ir_discard
: public ir_jump
{
875 this->ir_type
= ir_type_discard
;
876 this->condition
= NULL
;
879 ir_discard(ir_rvalue
*cond
)
881 this->condition
= cond
;
884 virtual ir_discard
*clone(struct hash_table
*ht
) const;
886 virtual void accept(ir_visitor
*v
)
891 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
893 ir_rvalue
*condition
;
899 * Texture sampling opcodes used in ir_texture
901 enum ir_texture_opcode
{
902 ir_tex
, /* Regular texture look-up */
903 ir_txb
, /* Texture look-up with LOD bias */
904 ir_txl
, /* Texture look-up with explicit LOD */
905 ir_txd
, /* Texture look-up with partial derivatvies */
906 ir_txf
/* Texel fetch with explicit LOD */
911 * IR instruction to sample a texture
913 * The specific form of the IR instruction depends on the \c mode value
914 * selected from \c ir_texture_opcodes. In the printed IR, these will
918 * | Projection divisor
919 * | | Shadow comparitor
922 * (tex (sampler) (coordinate) (0 0 0) (1) ( ))
923 * (txb (sampler) (coordinate) (0 0 0) (1) ( ) (bias))
924 * (txl (sampler) (coordinate) (0 0 0) (1) ( ) (lod))
925 * (txd (sampler) (coordinate) (0 0 0) (1) ( ) (dPdx dPdy))
926 * (txf (sampler) (coordinate) (0 0 0) (lod))
928 class ir_texture
: public ir_rvalue
{
930 ir_texture(enum ir_texture_opcode op
)
931 : op(op
), projector(NULL
), shadow_comparitor(NULL
)
933 this->ir_type
= ir_type_texture
;
936 virtual ir_texture
*clone(struct hash_table
*) const;
938 virtual ir_constant
*constant_expression_value();
940 virtual void accept(ir_visitor
*v
)
945 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
948 * Return a string representing the ir_texture_opcode.
950 const char *opcode_string();
952 /** Set the sampler and infer the type. */
953 void set_sampler(ir_dereference
*sampler
);
956 * Do a reverse-lookup to translate a string into an ir_texture_opcode.
958 static ir_texture_opcode
get_opcode(const char *);
960 enum ir_texture_opcode op
;
962 /** Sampler to use for the texture access. */
963 ir_dereference
*sampler
;
965 /** Texture coordinate to sample */
966 ir_rvalue
*coordinate
;
969 * Value used for projective divide.
971 * If there is no projective divide (the common case), this will be
972 * \c NULL. Optimization passes should check for this to point to a constant
973 * of 1.0 and replace that with \c NULL.
975 ir_rvalue
*projector
;
978 * Coordinate used for comparison on shadow look-ups.
980 * If there is no shadow comparison, this will be \c NULL. For the
981 * \c ir_txf opcode, this *must* be \c NULL.
983 ir_rvalue
*shadow_comparitor
;
985 /** Explicit texel offsets. */
986 signed char offsets
[3];
989 ir_rvalue
*lod
; /**< Floating point LOD */
990 ir_rvalue
*bias
; /**< Floating point LOD bias */
992 ir_rvalue
*dPdx
; /**< Partial derivative of coordinate wrt X */
993 ir_rvalue
*dPdy
; /**< Partial derivative of coordinate wrt Y */
999 struct ir_swizzle_mask
{
1006 * Number of components in the swizzle.
1008 unsigned num_components
:3;
1011 * Does the swizzle contain duplicate components?
1013 * L-value swizzles cannot contain duplicate components.
1015 unsigned has_duplicates
:1;
1019 class ir_swizzle
: public ir_rvalue
{
1021 ir_swizzle(ir_rvalue
*, unsigned x
, unsigned y
, unsigned z
, unsigned w
,
1024 ir_swizzle(ir_rvalue
*val
, const unsigned *components
, unsigned count
);
1026 ir_swizzle(ir_rvalue
*val
, ir_swizzle_mask mask
);
1028 virtual ir_swizzle
*clone(struct hash_table
*) const;
1030 virtual ir_constant
*constant_expression_value();
1032 virtual ir_swizzle
*as_swizzle()
1038 * Construct an ir_swizzle from the textual representation. Can fail.
1040 static ir_swizzle
*create(ir_rvalue
*, const char *, unsigned vector_length
);
1042 virtual void accept(ir_visitor
*v
)
1047 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1051 return val
->is_lvalue() && !mask
.has_duplicates
;
1055 * Get the variable that is ultimately referenced by an r-value
1057 virtual ir_variable
*variable_referenced();
1060 ir_swizzle_mask mask
;
1064 * Initialize the mask component of a swizzle
1066 * This is used by the \c ir_swizzle constructors.
1068 void init_mask(const unsigned *components
, unsigned count
);
1072 class ir_dereference
: public ir_rvalue
{
1074 virtual ir_dereference
*clone(struct hash_table
*) const = 0;
1076 virtual ir_dereference
*as_dereference()
1084 * Get the variable that is ultimately referenced by an r-value
1086 virtual ir_variable
*variable_referenced() = 0;
1090 class ir_dereference_variable
: public ir_dereference
{
1092 ir_dereference_variable(ir_variable
*var
);
1094 virtual ir_dereference_variable
*clone(struct hash_table
*) const;
1096 virtual ir_constant
*constant_expression_value();
1098 virtual ir_dereference_variable
*as_dereference_variable()
1104 * Get the variable that is ultimately referenced by an r-value
1106 virtual ir_variable
*variable_referenced()
1111 virtual ir_variable
*whole_variable_referenced()
1113 /* ir_dereference_variable objects always dereference the entire
1114 * variable. However, if this dereference is dereferenced by anything
1115 * else, the complete deferefernce chain is not a whole-variable
1116 * dereference. This method should only be called on the top most
1117 * ir_rvalue in a dereference chain.
1122 virtual void accept(ir_visitor
*v
)
1127 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1130 * Object being dereferenced.
1136 class ir_dereference_array
: public ir_dereference
{
1138 ir_dereference_array(ir_rvalue
*value
, ir_rvalue
*array_index
);
1140 ir_dereference_array(ir_variable
*var
, ir_rvalue
*array_index
);
1142 virtual ir_dereference_array
*clone(struct hash_table
*) const;
1144 virtual ir_constant
*constant_expression_value();
1146 virtual ir_dereference_array
*as_dereference_array()
1152 * Get the variable that is ultimately referenced by an r-value
1154 virtual ir_variable
*variable_referenced()
1156 return this->array
->variable_referenced();
1159 virtual void accept(ir_visitor
*v
)
1164 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1167 ir_rvalue
*array_index
;
1170 void set_array(ir_rvalue
*value
);
1174 class ir_dereference_record
: public ir_dereference
{
1176 ir_dereference_record(ir_rvalue
*value
, const char *field
);
1178 ir_dereference_record(ir_variable
*var
, const char *field
);
1180 virtual ir_dereference_record
*clone(struct hash_table
*) const;
1182 virtual ir_constant
*constant_expression_value();
1185 * Get the variable that is ultimately referenced by an r-value
1187 virtual ir_variable
*variable_referenced()
1189 return this->record
->variable_referenced();
1192 virtual void accept(ir_visitor
*v
)
1197 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1205 * Data stored in an ir_constant
1207 union ir_constant_data
{
1215 class ir_constant
: public ir_rvalue
{
1217 ir_constant(const struct glsl_type
*type
, const ir_constant_data
*data
);
1218 ir_constant(bool b
);
1219 ir_constant(unsigned int u
);
1221 ir_constant(float f
);
1224 * Construct an ir_constant from a list of ir_constant values
1226 ir_constant(const struct glsl_type
*type
, exec_list
*values
);
1229 * Construct an ir_constant from a scalar component of another ir_constant
1231 * The new \c ir_constant inherits the type of the component from the
1235 * In the case of a matrix constant, the new constant is a scalar, \b not
1238 ir_constant(const ir_constant
*c
, unsigned i
);
1240 virtual ir_constant
*clone(struct hash_table
*) const;
1242 virtual ir_constant
*constant_expression_value();
1244 virtual ir_constant
*as_constant()
1249 virtual void accept(ir_visitor
*v
)
1254 virtual ir_visitor_status
accept(ir_hierarchical_visitor
*);
1257 * Get a particular component of a constant as a specific type
1259 * This is useful, for example, to get a value from an integer constant
1260 * as a float or bool. This appears frequently when constructors are
1261 * called with all constant parameters.
1264 bool get_bool_component(unsigned i
) const;
1265 float get_float_component(unsigned i
) const;
1266 int get_int_component(unsigned i
) const;
1267 unsigned get_uint_component(unsigned i
) const;
1270 ir_constant
*get_record_field(const char *name
);
1273 * Determine whether a constant has the same value as another constant
1275 bool has_value(const ir_constant
*) const;
1278 * Value of the constant.
1280 * The field used to back the values supplied by the constant is determined
1281 * by the type associated with the \c ir_instruction. Constants may be
1282 * scalars, vectors, or matrices.
1284 union ir_constant_data value
;
1286 exec_list components
;
1290 * Parameterless constructor only used by the clone method
1296 visit_exec_list(exec_list
*list
, ir_visitor
*visitor
);
1298 void validate_ir_tree(exec_list
*instructions
);
1301 * Make a clone of each IR instruction in a list
1303 * \param in List of IR instructions that are to be cloned
1304 * \param out List to hold the cloned instructions
1307 clone_ir_list(exec_list
*out
, const exec_list
*in
);
1310 _mesa_glsl_initialize_variables(exec_list
*instructions
,
1311 struct _mesa_glsl_parse_state
*state
);
1314 _mesa_glsl_initialize_functions(exec_list
*instructions
,
1315 struct _mesa_glsl_parse_state
*state
);