diff options
Diffstat (limited to 'src/glsl/ir.h')
| -rw-r--r-- | src/glsl/ir.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index 8023a78..7b83c28 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -122,6 +122,7 @@ public: virtual class ir_if * as_if() { return NULL; } virtual class ir_swizzle * as_swizzle() { return NULL; } virtual class ir_constant * as_constant() { return NULL; } + virtual class ir_discard * as_discard() { return NULL; } /*@}*/ protected: @@ -295,6 +296,15 @@ public: unsigned invariant:1; /** + * Has this variable been used for reading or writing? + * + * Several GLSL semantic checks require knowledge of whether or not a + * variable has been used. For example, it is an error to redeclare a + * variable as invariant after it has been used. + */ + unsigned used:1; + + /** * Storage class of the variable. * * \sa ir_variable_mode @@ -376,6 +386,8 @@ public: virtual ir_function_signature *clone(void *mem_ctx, struct hash_table *ht) const; + ir_function_signature *clone_prototype(void *mem_ctx, + struct hash_table *ht) const; virtual void accept(ir_visitor *v) { @@ -842,12 +854,14 @@ public: * Constructor for unary operation expressions */ ir_expression(int op, const struct glsl_type *type, ir_rvalue *); + ir_expression(int op, ir_rvalue *); /** * Constructor for binary operation expressions */ ir_expression(int op, const struct glsl_type *type, ir_rvalue *, ir_rvalue *); + ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1); /** * Constructor for quad operator expressions @@ -1123,6 +1137,11 @@ public: virtual ir_visitor_status accept(ir_hierarchical_visitor *); + virtual ir_discard *as_discard() + { + return this; + } + ir_rvalue *condition; }; /*@}*/ @@ -1573,8 +1592,7 @@ _mesa_glsl_initialize_variables(exec_list *instructions, struct _mesa_glsl_parse_state *state); extern void -_mesa_glsl_initialize_functions(exec_list *instructions, - struct _mesa_glsl_parse_state *state); +_mesa_glsl_initialize_functions(_mesa_glsl_parse_state *state); extern void _mesa_glsl_release_functions(void); |