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      1 /* -*- c++ -*- */
      2 /*
      3  * Copyright  2010 Intel Corporation
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a
      6  * copy of this software and associated documentation files (the "Software"),
      7  * to deal in the Software without restriction, including without limitation
      8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      9  * and/or sell copies of the Software, and to permit persons to whom the
     10  * Software is furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice (including the next
     13  * paragraph) shall be included in all copies or substantial portions of the
     14  * Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     22  * DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 #pragma once
     26 #ifndef IR_PRINT_VISITOR_H
     27 #define IR_PRINT_VISITOR_H
     28 
     29 #include "ir.h"
     30 #include "ir_visitor.h"
     31 
     32 extern "C" {
     33 #include "program/symbol_table.h"
     34 }
     35 
     36 extern void _mesa_print_ir(exec_list *instructions,
     37 			   struct _mesa_glsl_parse_state *state);
     38 
     39 /**
     40  * Abstract base class of visitors of IR instruction trees
     41  */
     42 class ir_print_visitor : public ir_visitor {
     43 public:
     44    ir_print_visitor();
     45    virtual ~ir_print_visitor();
     46 
     47    void indent(void);
     48 
     49    /**
     50     * \name Visit methods
     51     *
     52     * As typical for the visitor pattern, there must be one \c visit method for
     53     * each concrete subclass of \c ir_instruction.  Virtual base classes within
     54     * the hierarchy should not have \c visit methods.
     55     */
     56    /*@{*/
     57    virtual void visit(ir_rvalue *);
     58    virtual void visit(ir_variable *);
     59    virtual void visit(ir_function_signature *);
     60    virtual void visit(ir_function *);
     61    virtual void visit(ir_expression *);
     62    virtual void visit(ir_texture *);
     63    virtual void visit(ir_swizzle *);
     64    virtual void visit(ir_dereference_variable *);
     65    virtual void visit(ir_dereference_array *);
     66    virtual void visit(ir_dereference_record *);
     67    virtual void visit(ir_assignment *);
     68    virtual void visit(ir_constant *);
     69    virtual void visit(ir_call *);
     70    virtual void visit(ir_return *);
     71    virtual void visit(ir_discard *);
     72    virtual void visit(ir_if *);
     73    virtual void visit(ir_loop *);
     74    virtual void visit(ir_loop_jump *);
     75    /*@}*/
     76 
     77 private:
     78    /**
     79     * Fetch/generate a unique name for ir_variable.
     80     *
     81     * GLSL IR permits multiple ir_variables to share the same name.  This works
     82     * fine until we try to print it, when we really need a unique one.
     83     */
     84    const char *unique_name(ir_variable *var);
     85 
     86    /** A mapping from ir_variable * -> unique printable names. */
     87    hash_table *printable_names;
     88    _mesa_symbol_table *symbols;
     89 
     90    void *mem_ctx;
     91 
     92    int indentation;
     93 };
     94 
     95 #endif /* IR_PRINT_VISITOR_H */
     96