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authorIan Romanick <ian.d.romanick@intel.com>2010-03-09 16:23:37 -0800
committerIan Romanick <ian.d.romanick@intel.com>2010-03-09 16:26:15 -0800
commit78b51b0fdd61b58940f9043ef9046217552f2c70 (patch)
tree61f60182a78feec1288f97fc1f78b6d921ae6b19
parentfce1150156edc8b51f5cf077679c0fdb5d582aba (diff)
IR visitor: Add initial version of ir_visitor classes
The ir_visitor class is the abstract base class for all visitors. ir_print_visitor contains the beginnings of a concrete visitor class that will print out an IR sequence in a Lisp / Scheme-like syntax.
-rw-r--r--Makefile.am3
-rw-r--r--ir.h43
-rw-r--r--ir_print_visitor.cpp89
-rw-r--r--ir_print_visitor.h65
-rw-r--r--ir_visitor.h57
5 files changed, 256 insertions, 1 deletions
diff --git a/Makefile.am b/Makefile.am
index 77b401357a..60317f8b4d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -25,7 +25,8 @@ AUTOMAKE_OPTIONS = foreign
bin_PROGRAMS = glsl
glsl_SOURCES = symbol_table.c hash_table.c glsl_types.cpp \
glsl_parser.ypp glsl_lexer.lpp glsl_parser_extras.cpp \
- ast_expr.cpp ast_to_hir.cpp ir.cpp hir_field_selection.cpp
+ ast_expr.cpp ast_to_hir.cpp ir.cpp hir_field_selection.cpp \
+ ir_print_visitor.cpp
BUILT_SOURCES = glsl_parser.h builtin_types.h
diff --git a/ir.h b/ir.h
index b728631d78..8d59d21dcb 100644
--- a/ir.h
+++ b/ir.h
@@ -22,6 +22,7 @@
*/
#include "list.h"
+#include "ir_visitor.h"
struct ir_program {
void *bong_hits;
@@ -48,6 +49,8 @@ public:
unsigned mode;
const struct glsl_type *type;
+ virtual void accept(ir_visitor *) = 0;
+
protected:
ir_instruction(int mode);
@@ -81,6 +84,11 @@ class ir_variable : public ir_instruction {
public:
ir_variable(const struct glsl_type *, const char *);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
const char *name;
unsigned read_only:1;
@@ -96,6 +104,11 @@ class ir_label : public ir_instruction {
public:
ir_label(const char *label);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
const char *label;
};
@@ -105,6 +118,11 @@ class ir_function_signature : public ir_instruction {
public:
ir_function_signature(void);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
/**
* Function return type.
*
@@ -131,6 +149,11 @@ class ir_function : public ir_instruction {
public:
ir_function(void);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
/**
* Name of the function.
*/
@@ -148,6 +171,11 @@ public:
ir_assignment(ir_instruction *lhs, ir_instruction *rhs,
ir_expression *condition);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
/**
* Left-hand side of the assignment.
*/
@@ -234,6 +262,11 @@ public:
ir_expression(int op, const struct glsl_type *type,
ir_instruction *, ir_instruction *);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
ir_expression_operation operation;
ir_instruction *operands[2];
};
@@ -262,6 +295,11 @@ class ir_dereference : public ir_instruction {
public:
ir_dereference(struct ir_instruction *);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
enum {
ir_reference_variable,
ir_reference_array,
@@ -287,6 +325,11 @@ class ir_constant : public ir_instruction {
public:
ir_constant(const struct glsl_type *type, const void *data);
+ virtual void accept(ir_visitor *v)
+ {
+ v->visit(this);
+ }
+
/**
* Value of the constant.
*
diff --git a/ir_print_visitor.cpp b/ir_print_visitor.cpp
new file mode 100644
index 0000000000..8c4271e466
--- /dev/null
+++ b/ir_print_visitor.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#include <cstdio>
+#include "ir_print_visitor.h"
+
+void ir_print_visitor::visit(ir_variable *ir)
+{
+ printf("(declare \n");
+
+ const char *const cent = (ir->centroid) ? "centroid " : "";
+ const char *const inv = (ir->invariant) ? "invariant " : "";
+ const char *const mode[] = { "", "uniform ", "in ", "out ", "inout " };
+ const char *const interp[] = { "", "flat", "noperspective" };
+
+ printf(" (%s%s%s%s)\n",
+ cent, inv, mode[ir->mode], interp[ir->interpolation]);
+
+ printf(" (FINISHME: type goes here)\n");
+ printf(" (%s)\n", ir->name);
+ printf(")\n");
+}
+
+
+void ir_print_visitor::visit(ir_label *ir)
+{
+ printf("(label %s)\n", ir->label);
+}
+
+
+void ir_print_visitor::visit(ir_function_signature *ir)
+{
+ printf("%s:%d:\n", __func__, __LINE__);
+ (void) ir;
+}
+
+
+void ir_print_visitor::visit(ir_function *ir)
+{
+ printf("(function %s\n", ir->name);
+ printf(")\n");
+}
+
+
+void ir_print_visitor::visit(ir_expression *ir)
+{
+ printf("%s:%d:\n", __func__, __LINE__);
+ (void) ir;
+}
+
+
+void ir_print_visitor::visit(ir_dereference *ir)
+{
+ printf("%s:%d:\n", __func__, __LINE__);
+ (void) ir;
+}
+
+
+void ir_print_visitor::visit(ir_assignment *ir)
+{
+ printf("%s:%d:\n", __func__, __LINE__);
+ (void) ir;
+}
+
+
+void ir_print_visitor::visit(ir_constant *ir)
+{
+ printf("%s:%d:\n", __func__, __LINE__);
+ (void) ir;
+}
diff --git a/ir_print_visitor.h b/ir_print_visitor.h
new file mode 100644
index 0000000000..a2004e43b2
--- /dev/null
+++ b/ir_print_visitor.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef IR_PRINT_VISITOR_H
+#define IR_PRINT_VISITOR_H
+
+#include "ir.h"
+#include "ir_visitor.h"
+
+/**
+ * Abstract base class of visitors of IR instruction trees
+ */
+class ir_print_visitor : public ir_visitor {
+public:
+ ir_print_visitor()
+ {
+ /* empty */
+ }
+
+ virtual ~ir_print_visitor()
+ {
+ /* empty */
+ }
+
+ /**
+ * \name Visit methods
+ *
+ * As typical for the visitor pattern, there must be one \c visit method for
+ * each concrete subclass of \c ir_instruction. Virtual base classes within
+ * the hierarchy should not have \c visit methods.
+ */
+ /*@{*/
+ virtual void visit(ir_variable *);
+ virtual void visit(ir_label *);
+ virtual void visit(ir_function_signature *);
+ virtual void visit(ir_function *);
+ virtual void visit(ir_expression *);
+ virtual void visit(ir_dereference *);
+ virtual void visit(ir_assignment *);
+ virtual void visit(ir_constant *);
+ /*@}*/
+};
+
+#endif /* IR_PRINT_VISITOR_H */
diff --git a/ir_visitor.h b/ir_visitor.h
new file mode 100644
index 0000000000..4494074eca
--- /dev/null
+++ b/ir_visitor.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef IR_VISITOR_H
+#define IR_VISITOR_H
+
+/**
+ * Abstract base class of visitors of IR instruction trees
+ */
+class ir_visitor {
+public:
+ virtual ~ir_visitor()
+ {
+ /* empty */
+ }
+
+ /**
+ * \name Visit methods
+ *
+ * As typical for the visitor pattern, there must be one \c visit method for
+ * each concrete subclass of \c ir_instruction. Virtual base classes within
+ * the hierarchy should not have \c visit methods.
+ */
+ /*@{*/
+ virtual void visit(class ir_variable *) = 0;
+ virtual void visit(class ir_label *) = 0;
+ virtual void visit(class ir_function_signature *) = 0;
+ virtual void visit(class ir_function *) = 0;
+ virtual void visit(class ir_expression *) = 0;
+ virtual void visit(class ir_dereference *) = 0;
+ virtual void visit(class ir_assignment *) = 0;
+ virtual void visit(class ir_constant *) = 0;
+ /*@}*/
+};
+
+#endif /* IR_VISITOR_H */