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eeea4fd331
This is a reapplication of https://codereview.chromium.org/2809583002/ with a fix for the AOT case. We have been using IC data for receiver type info in the PolymorphicInstanceCallInstr. This is a data structure optimized for access from hand-coded assembly stubs, and placed on the GC-ed heap, which means it has to be accessed through handles. With this change we move it to the zone memory, which means it can be freed without an old-gen GC. As a side-effect the zone arrays use exponential growth for amortized constant space allocation instead of growing by 1 for quadratic allocation when we add classes, further reducing memory pressure. R=vegorov@google.com BUG= Review-Url: https://codereview.chromium.org/2842753002 .
82 lines
2.7 KiB
C++
82 lines
2.7 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_VM_IL_PRINTER_H_
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#define RUNTIME_VM_IL_PRINTER_H_
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#include "vm/flow_graph.h"
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#include "vm/intermediate_language.h"
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namespace dart {
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class BufferFormatter : public ValueObject {
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public:
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BufferFormatter(char* buffer, intptr_t size)
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: position_(0), buffer_(buffer), size_(size) {}
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void VPrint(const char* format, va_list args);
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void Print(const char* format, ...) PRINTF_ATTRIBUTE(2, 3);
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private:
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intptr_t position_;
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char* buffer_;
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const intptr_t size_;
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DISALLOW_COPY_AND_ASSIGN(BufferFormatter);
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};
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class ParsedFunction;
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// Graph printing.
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class FlowGraphPrinter : public ValueObject {
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public:
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static const intptr_t kPrintAll = -1;
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explicit FlowGraphPrinter(const FlowGraph& flow_graph,
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bool print_locations = false)
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: function_(flow_graph.function()),
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block_order_(flow_graph.reverse_postorder()),
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print_locations_(print_locations) {}
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// Print the instructions in a block terminated by newlines. Add "goto N"
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// to the end of the block if it ends with an unconditional jump to
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// another block and that block is not next in reverse postorder.
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void PrintBlocks();
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void PrintInstruction(Instruction* instr);
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static void PrintOneInstruction(Instruction* instr, bool print_locations);
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static void PrintTypeCheck(const ParsedFunction& parsed_function,
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TokenPosition token_pos,
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Value* value,
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const AbstractType& dst_type,
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const String& dst_name,
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bool eliminated);
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static void PrintBlock(BlockEntryInstr* block, bool print_locations);
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static void PrintGraph(const char* phase, FlowGraph* flow_graph);
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// Debugging helper function. If 'num_checks_to_print' is not specified
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// all checks will be printed.
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static void PrintICData(const ICData& ic_data,
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intptr_t num_checks_to_print = kPrintAll);
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// Debugging helper function. If 'num_checks_to_print' is not specified
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// all checks will be printed.
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static void PrintCidRangeData(const CallTargets& ic_data,
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intptr_t num_checks_to_print = kPrintAll);
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static bool ShouldPrint(const Function& function);
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static bool PassesFilter(const char* filter, const Function& function);
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private:
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const Function& function_;
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const GrowableArray<BlockEntryInstr*>& block_order_;
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const bool print_locations_;
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};
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} // namespace dart
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#endif // RUNTIME_VM_IL_PRINTER_H_
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