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29 #include "glsl_parser_extras.h"
30 #include "compiler/glsl_types.h"
31 #include "util/bitset.h"
33 struct _mesa_glsl_parse_state;
38 * \defgroup AST Abstract syntax tree node definitions
40 * An abstract syntax tree is generated by the parser. This is a fairly
41 * direct representation of the gramma derivation for the source program.
42 * No symantic checking is done during the generation of the AST. Only
43 * syntactic checking is done. Symantic checking is performed by a later
44 * stage that converts the AST to a more generic intermediate representation.
49 * Base class of all abstract syntax tree nodes
53 DECLARE_LINEAR_ZALLOC_CXX_OPERATORS(ast_node);
56 * Print an AST node in something approximating the original GLSL code
58 virtual void print(void) const;
61 * Convert the AST node to the high-level intermediate representation
63 virtual ir_rvalue *hir(exec_list *instructions,
64 struct _mesa_glsl_parse_state *state);
66 virtual bool has_sequence_subexpression() const;
69 * Retrieve the source location of an AST node
71 * This function is primarily used to get the source position of an AST node
72 * into a form that can be passed to \c _mesa_glsl_error.
74 * \sa _mesa_glsl_error, ast_node::set_location
76 struct YYLTYPE get_location(void) const
80 locp.source = this->location.source;
81 locp.first_line = this->location.first_line;
82 locp.first_column = this->location.first_column;
83 locp.last_line = this->location.last_line;
84 locp.last_column = this->location.last_column;
90 * Set the source location of an AST node from a parser location
92 * \sa ast_node::get_location
94 void set_location(const struct YYLTYPE &locp)
96 this->location.source = locp.source;
97 this->location.first_line = locp.first_line;
98 this->location.first_column = locp.first_column;
99 this->location.last_line = locp.last_line;
100 this->location.last_column = locp.last_column;
104 * Set the source location range of an AST node using two location nodes
106 * \sa ast_node::set_location
108 void set_location_range(const struct YYLTYPE &begin, const struct YYLTYPE &end)
110 this->location.source = begin.source;
111 this->location.first_line = begin.first_line;
112 this->location.last_line = end.last_line;
113 this->location.first_column = begin.first_column;
114 this->location.last_column = end.last_column;
118 * Source location of the AST node.
121 unsigned source; /**< GLSL source number. */
122 unsigned first_line; /**< First line number within the source string. */
123 unsigned first_column; /**< First column in the first line. */
124 unsigned last_line; /**< Last line number within the source string. */
125 unsigned last_column; /**< Last column in the last line. */
130 virtual void set_is_lhs(bool);
134 * The only constructor is protected so that only derived class objects can
142 * Operators for AST expression nodes.
146 ast_plus, /**< Unary + operator. */
189 ast_unsized_array_dim,
206 * Number of possible operators for an ast_expression
208 * This is done as a define instead of as an additional value in the enum so
209 * that the compiler won't generate spurious messages like "warning:
210 * enumeration value ‘ast_num_operators’ not handled in switch"
212 #define AST_NUM_OPERATORS (ast_aggregate + 1)
216 * Representation of any sort of expression.
218 class ast_expression : public ast_node {
220 ast_expression(int oper, ast_expression *,
221 ast_expression *, ast_expression *);
223 ast_expression(const char *identifier) :
226 subexpressions[0] = NULL;
227 subexpressions[1] = NULL;
228 subexpressions[2] = NULL;
229 primary_expression.identifier = identifier;
230 this->non_lvalue_description = NULL;
231 this->is_lhs = false;
234 static const char *operator_string(enum ast_operators op);
236 virtual ir_rvalue *hir(exec_list *instructions,
237 struct _mesa_glsl_parse_state *state);
239 virtual void hir_no_rvalue(exec_list *instructions,
240 struct _mesa_glsl_parse_state *state);
242 virtual bool has_sequence_subexpression() const;
244 ir_rvalue *do_hir(exec_list *instructions,
245 struct _mesa_glsl_parse_state *state,
248 virtual void print(void) const;
250 enum ast_operators oper;
252 ast_expression *subexpressions[3];
255 const char *identifier;
257 float float_constant;
258 unsigned uint_constant;
260 double double_constant;
261 uint64_t uint64_constant;
262 int64_t int64_constant;
263 } primary_expression;
267 * List of expressions for an \c ast_sequence or parameters for an
268 * \c ast_function_call
270 exec_list expressions;
273 * For things that can't be l-values, this describes what it is.
275 * This text is used by the code that generates IR for assignments to
276 * detect and emit useful messages for assignments to some things that
277 * can't be l-values. For example, pre- or post-incerement expressions.
280 * This pointer may be \c NULL.
282 const char *non_lvalue_description;
284 void set_is_lhs(bool new_value);
290 class ast_expression_bin : public ast_expression {
292 ast_expression_bin(int oper, ast_expression *, ast_expression *);
294 virtual void print(void) const;
298 * Subclass of expressions for function calls
300 class ast_function_expression : public ast_expression {
302 ast_function_expression(ast_expression *callee)
303 : ast_expression(ast_function_call, callee,
310 ast_function_expression(class ast_type_specifier *type)
311 : ast_expression(ast_function_call, (ast_expression *) type,
318 bool is_constructor() const
323 virtual ir_rvalue *hir(exec_list *instructions,
324 struct _mesa_glsl_parse_state *state);
326 virtual void hir_no_rvalue(exec_list *instructions,
327 struct _mesa_glsl_parse_state *state);
329 virtual bool has_sequence_subexpression() const;
333 * Is this function call actually a constructor?
337 handle_method(exec_list *instructions,
338 struct _mesa_glsl_parse_state *state);
341 class ast_subroutine_list : public ast_node
344 virtual void print(void) const;
345 exec_list declarations;
348 class ast_array_specifier : public ast_node {
350 ast_array_specifier(const struct YYLTYPE &locp, ast_expression *dim)
353 array_dimensions.push_tail(&dim->link);
356 void add_dimension(ast_expression *dim)
358 array_dimensions.push_tail(&dim->link);
361 bool is_single_dimension() const
363 return this->array_dimensions.get_tail_raw()->prev != NULL &&
364 this->array_dimensions.get_tail_raw()->prev->is_head_sentinel();
367 virtual void print(void) const;
369 /* This list contains objects of type ast_node containing the
370 * array dimensions in outermost-to-innermost order.
372 exec_list array_dimensions;
375 class ast_layout_expression : public ast_node {
377 ast_layout_expression(const struct YYLTYPE &locp, ast_expression *expr)
380 layout_const_expressions.push_tail(&expr->link);
383 bool process_qualifier_constant(struct _mesa_glsl_parse_state *state,
384 const char *qual_indentifier,
385 unsigned *value, bool can_be_zero);
387 void merge_qualifier(ast_layout_expression *l_expr)
389 layout_const_expressions.append_list(&l_expr->layout_const_expressions);
392 exec_list layout_const_expressions;
396 * C-style aggregate initialization class
398 * Represents C-style initializers of vectors, matrices, arrays, and
399 * structures. E.g., vec3 pos = {1.0, 0.0, -1.0} is equivalent to
400 * vec3 pos = vec3(1.0, 0.0, -1.0).
402 * Specified in GLSL 4.20 and GL_ARB_shading_language_420pack.
404 * \sa _mesa_ast_set_aggregate_type
406 class ast_aggregate_initializer : public ast_expression {
408 ast_aggregate_initializer()
409 : ast_expression(ast_aggregate, NULL, NULL, NULL),
410 constructor_type(NULL)
416 * glsl_type of the aggregate, which is inferred from the LHS of whatever
417 * the aggregate is being used to initialize. This can't be inferred at
418 * parse time (since the parser deals with ast_type_specifiers, not
419 * glsl_types), so the parser leaves it NULL. However, the ast-to-hir
420 * conversion code makes sure to fill it in with the appropriate type
421 * before hir() is called.
423 const glsl_type *constructor_type;
425 virtual ir_rvalue *hir(exec_list *instructions,
426 struct _mesa_glsl_parse_state *state);
428 virtual void hir_no_rvalue(exec_list *instructions,
429 struct _mesa_glsl_parse_state *state);
433 class ast_compound_statement : public ast_node {
435 ast_compound_statement(int new_scope, ast_node *statements);
436 virtual void print(void) const;
438 virtual ir_rvalue *hir(exec_list *instructions,
439 struct _mesa_glsl_parse_state *state);
442 exec_list statements;
445 class ast_declaration : public ast_node {
447 ast_declaration(const char *identifier,
448 ast_array_specifier *array_specifier,
449 ast_expression *initializer);
450 virtual void print(void) const;
452 const char *identifier;
454 ast_array_specifier *array_specifier;
456 ast_expression *initializer;
461 ast_precision_none = 0, /**< Absence of precision qualifier. */
463 ast_precision_medium,
468 ast_depth_none = 0, /**< Absence of depth qualifier. */
475 struct ast_type_qualifier {
476 DECLARE_RALLOC_CXX_OPERATORS(ast_type_qualifier);
477 DECLARE_BITSET_T(bitset_t, 128);
481 unsigned invariant:1;
484 unsigned attribute:1;
493 unsigned shared_storage:1;
496 unsigned noperspective:1;
498 /** \name Layout qualifiers for GL_ARB_fragment_coord_conventions */
500 unsigned origin_upper_left:1;
501 unsigned pixel_center_integer:1;
505 * Flag set if GL_ARB_enhanced_layouts "align" layout qualifier is
508 unsigned explicit_align:1;
511 * Flag set if GL_ARB_explicit_attrib_location "location" layout
514 unsigned explicit_location:1;
516 * Flag set if GL_ARB_explicit_attrib_location "index" layout
519 unsigned explicit_index:1;
522 * Flag set if GL_ARB_enhanced_layouts "component" layout
525 unsigned explicit_component:1;
528 * Flag set if GL_ARB_shading_language_420pack "binding" layout
531 unsigned explicit_binding:1;
534 * Flag set if GL_ARB_shader_atomic counter "offset" layout
537 unsigned explicit_offset:1;
539 /** \name Layout qualifiers for GL_AMD_conservative_depth */
541 unsigned depth_type:1;
544 /** \name Layout qualifiers for GL_ARB_uniform_buffer_object */
550 unsigned column_major:1;
551 unsigned row_major:1;
554 /** \name Layout qualifiers for GLSL 1.50 geometry shaders */
556 unsigned prim_type:1;
557 unsigned max_vertices:1;
561 * local_size_{x,y,z} flags for compute shaders. Bit 0 represents
562 * local_size_x, and so on.
564 unsigned local_size:3;
566 /** \name Layout qualifiers for ARB_compute_variable_group_size. */
568 unsigned local_size_variable:1;
571 /** \name Layout and memory qualifiers for ARB_shader_image_load_store. */
573 unsigned early_fragment_tests:1;
574 unsigned explicit_image_format:1;
576 unsigned _volatile:1;
577 unsigned restrict_flag:1;
578 unsigned read_only:1; /**< "readonly" qualifier. */
579 unsigned write_only:1; /**< "writeonly" qualifier. */
582 /** \name Layout qualifiers for GL_ARB_gpu_shader5 */
584 unsigned invocations:1;
585 unsigned stream:1; /**< Has stream value assigned */
586 unsigned explicit_stream:1; /**< stream value assigned explicitly by shader code */
589 /** \name Layout qualifiers for GL_ARB_enhanced_layouts */
591 unsigned explicit_xfb_offset:1; /**< xfb_offset value assigned explicitly by shader code */
592 unsigned xfb_buffer:1; /**< Has xfb_buffer value assigned */
593 unsigned explicit_xfb_buffer:1; /**< xfb_buffer value assigned explicitly by shader code */
594 unsigned xfb_stride:1; /**< Is xfb_stride value yet to be merged with global values */
595 unsigned explicit_xfb_stride:1; /**< xfb_stride value assigned explicitly by shader code */
598 /** \name Layout qualifiers for GL_ARB_tessellation_shader */
600 /* tess eval input layout */
601 /* gs prim_type reused for primitive mode */
602 unsigned vertex_spacing:1;
604 unsigned point_mode:1;
605 /* tess control output layout */
609 /** \name Qualifiers for GL_ARB_shader_subroutine */
611 unsigned subroutine:1; /**< Is this marked 'subroutine' */
614 /** \name Qualifiers for GL_KHR_blend_equation_advanced */
616 unsigned blend_support:1; /**< Are there any blend_support_ qualifiers */
620 * Flag set if GL_ARB_post_depth_coverage layout qualifier is used.
622 unsigned post_depth_coverage:1;
624 * Flag set if GL_INTEL_conservartive_rasterization layout qualifier
627 unsigned inner_coverage:1;
629 /** \name Layout qualifiers for GL_ARB_bindless_texture */
631 unsigned bindless_sampler:1;
632 unsigned bindless_image:1;
633 unsigned bound_sampler:1;
634 unsigned bound_image:1;
637 /** \name Layout qualifiers for GL_EXT_shader_framebuffer_fetch_non_coherent */
639 unsigned non_coherent:1;
642 /** \brief Set of flags, accessed by name. */
645 /** \brief Set of flags, accessed as a bitmask. */
649 /** Precision of the type (highp/medium/lowp). */
650 unsigned precision:2;
652 /** Type of layout qualifiers for GL_AMD_conservative_depth. */
653 unsigned depth_type:3;
656 * Alignment specified via GL_ARB_enhanced_layouts "align" layout qualifier
658 ast_expression *align;
660 /** Geometry shader invocations for GL_ARB_gpu_shader5. */
661 ast_layout_expression *invocations;
664 * Location specified via GL_ARB_explicit_attrib_location layout
667 * This field is only valid if \c explicit_location is set.
669 ast_expression *location;
671 * Index specified via GL_ARB_explicit_attrib_location layout
674 * This field is only valid if \c explicit_index is set.
676 ast_expression *index;
679 * Component specified via GL_ARB_enhaced_layouts
682 * This field is only valid if \c explicit_component is set.
684 ast_expression *component;
686 /** Maximum output vertices in GLSL 1.50 geometry shaders. */
687 ast_layout_expression *max_vertices;
689 /** Stream in GLSL 1.50 geometry shaders. */
690 ast_expression *stream;
692 /** xfb_buffer specified via the GL_ARB_enhanced_layouts keyword. */
693 ast_expression *xfb_buffer;
695 /** xfb_stride specified via the GL_ARB_enhanced_layouts keyword. */
696 ast_expression *xfb_stride;
698 /** global xfb_stride values for each buffer */
699 ast_layout_expression *out_xfb_stride[MAX_FEEDBACK_BUFFERS];
702 * Input or output primitive type in GLSL 1.50 geometry shaders
703 * and tessellation shaders.
708 * Binding specified via GL_ARB_shading_language_420pack's "binding" keyword.
711 * This field is only valid if \c explicit_binding is set.
713 ast_expression *binding;
716 * Offset specified via GL_ARB_shader_atomic_counter's or
717 * GL_ARB_enhanced_layouts "offset" keyword, or by GL_ARB_enhanced_layouts
718 * "xfb_offset" keyword.
721 * This field is only valid if \c explicit_offset is set.
723 ast_expression *offset;
726 * Local size specified via GL_ARB_compute_shader's "local_size_{x,y,z}"
727 * layout qualifier. Element i of this array is only valid if
728 * flags.q.local_size & (1 << i) is set.
730 ast_layout_expression *local_size[3];
732 /** Tessellation evaluation shader: vertex spacing (equal, fractional even/odd) */
733 enum gl_tess_spacing vertex_spacing;
735 /** Tessellation evaluation shader: vertex ordering (CW or CCW) */
738 /** Tessellation evaluation shader: point mode */
741 /** Tessellation control shader: number of output vertices */
742 ast_layout_expression *vertices;
745 * Image format specified with an ARB_shader_image_load_store
749 * This field is only valid if \c explicit_image_format is set.
754 * Base type of the data read from or written to this image. Only
755 * the following enumerants are allowed: GLSL_TYPE_UINT,
756 * GLSL_TYPE_INT, GLSL_TYPE_FLOAT.
759 * This field is only valid if \c explicit_image_format is set.
761 glsl_base_type image_base_type;
764 * Return true if and only if an interpolation qualifier is present.
766 bool has_interpolation() const;
769 * Return whether a layout qualifier is present.
771 bool has_layout() const;
774 * Return whether a storage qualifier is present.
776 bool has_storage() const;
779 * Return whether an auxiliary storage qualifier is present.
781 bool has_auxiliary_storage() const;
784 * Return true if and only if a memory qualifier is present.
786 bool has_memory() const;
789 * Return true if the qualifier is a subroutine declaration.
791 bool is_subroutine_decl() const;
793 bool merge_qualifier(YYLTYPE *loc,
794 _mesa_glsl_parse_state *state,
795 const ast_type_qualifier &q,
796 bool is_single_layout_merge,
797 bool is_multiple_layouts_merge = false);
800 * Validate current qualifier against the global out one.
802 bool validate_out_qualifier(YYLTYPE *loc,
803 _mesa_glsl_parse_state *state);
806 * Merge current qualifier into the global out one.
808 bool merge_into_out_qualifier(YYLTYPE *loc,
809 _mesa_glsl_parse_state *state,
813 * Validate current qualifier against the global in one.
815 bool validate_in_qualifier(YYLTYPE *loc,
816 _mesa_glsl_parse_state *state);
819 * Merge current qualifier into the global in one.
821 bool merge_into_in_qualifier(YYLTYPE *loc,
822 _mesa_glsl_parse_state *state,
826 * Push pending layout qualifiers to the global values.
828 bool push_to_global(YYLTYPE *loc,
829 _mesa_glsl_parse_state *state);
831 bool validate_flags(YYLTYPE *loc,
832 _mesa_glsl_parse_state *state,
833 const ast_type_qualifier &allowed_flags,
834 const char *message, const char *name);
836 ast_subroutine_list *subroutine_list;
839 class ast_declarator_list;
841 class ast_struct_specifier : public ast_node {
843 ast_struct_specifier(const char *identifier,
844 ast_declarator_list *declarator_list);
845 virtual void print(void) const;
847 virtual ir_rvalue *hir(exec_list *instructions,
848 struct _mesa_glsl_parse_state *state);
851 ast_type_qualifier *layout;
852 /* List of ast_declarator_list * */
853 exec_list declarations;
855 const glsl_type *type;
860 class ast_type_specifier : public ast_node {
862 /** Construct a type specifier from a type name */
863 ast_type_specifier(const char *name)
864 : type(NULL), type_name(name), structure(NULL), array_specifier(NULL),
865 default_precision(ast_precision_none)
870 /** Construct a type specifier from a structure definition */
871 ast_type_specifier(ast_struct_specifier *s)
872 : type(NULL), type_name(s->name), structure(s), array_specifier(NULL),
873 default_precision(ast_precision_none)
878 ast_type_specifier(const glsl_type *t)
879 : type(t), type_name(t->name), structure(NULL), array_specifier(NULL),
880 default_precision(ast_precision_none)
885 const struct glsl_type *glsl_type(const char **name,
886 struct _mesa_glsl_parse_state *state)
889 virtual void print(void) const;
891 ir_rvalue *hir(exec_list *, struct _mesa_glsl_parse_state *);
893 const struct glsl_type *type;
894 const char *type_name;
895 ast_struct_specifier *structure;
897 ast_array_specifier *array_specifier;
899 /** For precision statements, this is the given precision; otherwise none. */
900 unsigned default_precision:2;
904 class ast_fully_specified_type : public ast_node {
906 virtual void print(void) const;
907 bool has_qualifiers(_mesa_glsl_parse_state *state) const;
909 ast_fully_specified_type() : qualifier(), specifier(NULL)
913 const struct glsl_type *glsl_type(const char **name,
914 struct _mesa_glsl_parse_state *state)
917 ast_type_qualifier qualifier;
918 ast_type_specifier *specifier;
922 class ast_declarator_list : public ast_node {
924 ast_declarator_list(ast_fully_specified_type *);
925 virtual void print(void) const;
927 virtual ir_rvalue *hir(exec_list *instructions,
928 struct _mesa_glsl_parse_state *state);
930 ast_fully_specified_type *type;
931 /** List of 'ast_declaration *' */
932 exec_list declarations;
935 * Flags for redeclarations. In these cases, no type is specified, to
936 * `type` is allowed to be NULL. In all other cases, this would be an error.
938 int invariant; /** < `invariant` redeclaration */
939 int precise; /** < `precise` redeclaration */
943 class ast_parameter_declarator : public ast_node {
945 ast_parameter_declarator() :
948 array_specifier(NULL),
949 formal_parameter(false),
955 virtual void print(void) const;
957 virtual ir_rvalue *hir(exec_list *instructions,
958 struct _mesa_glsl_parse_state *state);
960 ast_fully_specified_type *type;
961 const char *identifier;
962 ast_array_specifier *array_specifier;
964 static void parameters_to_hir(exec_list *ast_parameters,
965 bool formal, exec_list *ir_parameters,
966 struct _mesa_glsl_parse_state *state);
969 /** Is this parameter declaration part of a formal parameter list? */
970 bool formal_parameter;
973 * Is this parameter 'void' type?
975 * This field is set by \c ::hir.
981 class ast_function : public ast_node {
985 virtual void print(void) const;
987 virtual ir_rvalue *hir(exec_list *instructions,
988 struct _mesa_glsl_parse_state *state);
990 ast_fully_specified_type *return_type;
991 const char *identifier;
993 exec_list parameters;
997 * Is this prototype part of the function definition?
999 * Used by ast_function_definition::hir to process the parameters, etc.
1007 * Function signature corresponding to this function prototype instance
1009 * Used by ast_function_definition::hir to process the parameters, etc.
1014 class ir_function_signature *signature;
1016 friend class ast_function_definition;
1020 class ast_expression_statement : public ast_node {
1022 ast_expression_statement(ast_expression *);
1023 virtual void print(void) const;
1025 virtual ir_rvalue *hir(exec_list *instructions,
1026 struct _mesa_glsl_parse_state *state);
1028 ast_expression *expression;
1032 class ast_case_label : public ast_node {
1034 ast_case_label(ast_expression *test_value);
1035 virtual void print(void) const;
1037 virtual ir_rvalue *hir(exec_list *instructions,
1038 struct _mesa_glsl_parse_state *state);
1041 * An test value of NULL means 'default'.
1043 ast_expression *test_value;
1047 class ast_case_label_list : public ast_node {
1049 ast_case_label_list(void);
1050 virtual void print(void) const;
1052 virtual ir_rvalue *hir(exec_list *instructions,
1053 struct _mesa_glsl_parse_state *state);
1056 * A list of case labels.
1062 class ast_case_statement : public ast_node {
1064 ast_case_statement(ast_case_label_list *labels);
1065 virtual void print(void) const;
1067 virtual ir_rvalue *hir(exec_list *instructions,
1068 struct _mesa_glsl_parse_state *state);
1070 ast_case_label_list *labels;
1073 * A list of statements.
1079 class ast_case_statement_list : public ast_node {
1081 ast_case_statement_list(void);
1082 virtual void print(void) const;
1084 virtual ir_rvalue *hir(exec_list *instructions,
1085 struct _mesa_glsl_parse_state *state);
1094 class ast_switch_body : public ast_node {
1096 ast_switch_body(ast_case_statement_list *stmts);
1097 virtual void print(void) const;
1099 virtual ir_rvalue *hir(exec_list *instructions,
1100 struct _mesa_glsl_parse_state *state);
1102 ast_case_statement_list *stmts;
1106 class ast_selection_statement : public ast_node {
1108 ast_selection_statement(ast_expression *condition,
1109 ast_node *then_statement,
1110 ast_node *else_statement);
1111 virtual void print(void) const;
1113 virtual ir_rvalue *hir(exec_list *instructions,
1114 struct _mesa_glsl_parse_state *state);
1116 ast_expression *condition;
1117 ast_node *then_statement;
1118 ast_node *else_statement;
1122 class ast_switch_statement : public ast_node {
1124 ast_switch_statement(ast_expression *test_expression,
1126 virtual void print(void) const;
1128 virtual ir_rvalue *hir(exec_list *instructions,
1129 struct _mesa_glsl_parse_state *state);
1131 ast_expression *test_expression;
1135 void test_to_hir(exec_list *, struct _mesa_glsl_parse_state *);
1138 class ast_iteration_statement : public ast_node {
1140 ast_iteration_statement(int mode, ast_node *init, ast_node *condition,
1141 ast_expression *rest_expression, ast_node *body);
1143 virtual void print(void) const;
1145 virtual ir_rvalue *hir(exec_list *, struct _mesa_glsl_parse_state *);
1147 enum ast_iteration_modes {
1154 ast_node *init_statement;
1155 ast_node *condition;
1156 ast_expression *rest_expression;
1161 * Generate IR from the condition of a loop
1163 * This is factored out of ::hir because some loops have the condition
1164 * test at the top (for and while), and others have it at the end (do-while).
1166 void condition_to_hir(exec_list *, struct _mesa_glsl_parse_state *);
1170 class ast_jump_statement : public ast_node {
1172 ast_jump_statement(int mode, ast_expression *return_value);
1173 virtual void print(void) const;
1175 virtual ir_rvalue *hir(exec_list *instructions,
1176 struct _mesa_glsl_parse_state *state);
1178 enum ast_jump_modes {
1185 ast_expression *opt_return_value;
1189 class ast_function_definition : public ast_node {
1191 ast_function_definition() : prototype(NULL), body(NULL)
1195 virtual void print(void) const;
1197 virtual ir_rvalue *hir(exec_list *instructions,
1198 struct _mesa_glsl_parse_state *state);
1200 ast_function *prototype;
1201 ast_compound_statement *body;
1204 class ast_interface_block : public ast_node {
1206 ast_interface_block(const char *instance_name,
1207 ast_array_specifier *array_specifier)
1208 : block_name(NULL), instance_name(instance_name),
1209 array_specifier(array_specifier)
1213 virtual ir_rvalue *hir(exec_list *instructions,
1214 struct _mesa_glsl_parse_state *state);
1216 ast_type_qualifier default_layout;
1217 ast_type_qualifier layout;
1218 const char *block_name;
1221 * Declared name of the block instance, if specified.
1223 * If the block does not have an instance name, this field will be
1226 const char *instance_name;
1228 /** List of ast_declarator_list * */
1229 exec_list declarations;
1232 * Declared array size of the block instance
1234 * If the block is not declared as an array or if the block instance array
1235 * is unsized, this field will be \c NULL.
1237 ast_array_specifier *array_specifier;
1242 * AST node representing a declaration of the output layout for tessellation
1245 class ast_tcs_output_layout : public ast_node
1248 ast_tcs_output_layout(const struct YYLTYPE &locp)
1253 virtual ir_rvalue *hir(exec_list *instructions,
1254 struct _mesa_glsl_parse_state *state);
1259 * AST node representing a declaration of the input layout for geometry
1262 class ast_gs_input_layout : public ast_node
1265 ast_gs_input_layout(const struct YYLTYPE &locp, GLenum prim_type)
1266 : prim_type(prim_type)
1271 virtual ir_rvalue *hir(exec_list *instructions,
1272 struct _mesa_glsl_parse_state *state);
1275 const GLenum prim_type;
1280 * AST node representing a decalaration of the input layout for compute
1283 class ast_cs_input_layout : public ast_node
1286 ast_cs_input_layout(const struct YYLTYPE &locp,
1287 ast_layout_expression *const *local_size)
1289 for (int i = 0; i < 3; i++) {
1290 this->local_size[i] = local_size[i];
1295 virtual ir_rvalue *hir(exec_list *instructions,
1296 struct _mesa_glsl_parse_state *state);
1299 ast_layout_expression *local_size[3];
1305 _mesa_ast_to_hir(exec_list *instructions, struct _mesa_glsl_parse_state *state);
1308 _mesa_ast_field_selection_to_hir(const ast_expression *expr,
1309 exec_list *instructions,
1310 struct _mesa_glsl_parse_state *state);
1313 _mesa_ast_array_index_to_hir(void *mem_ctx,
1314 struct _mesa_glsl_parse_state *state,
1315 ir_rvalue *array, ir_rvalue *idx,
1316 YYLTYPE &loc, YYLTYPE &idx_loc);
1319 _mesa_ast_set_aggregate_type(const glsl_type *type,
1320 ast_expression *expr);
1323 emit_function(_mesa_glsl_parse_state *state, ir_function *f);
1326 check_builtin_array_max_size(const char *name, unsigned size,
1327 YYLTYPE loc, struct _mesa_glsl_parse_state *state);
1329 extern void _mesa_ast_process_interface_block(YYLTYPE *locp,
1330 _mesa_glsl_parse_state *state,
1331 ast_interface_block *const block,
1332 const struct ast_type_qualifier &q);
1335 process_qualifier_constant(struct _mesa_glsl_parse_state *state,
1337 const char *qual_indentifier,
1338 ast_expression *const_expression,