123 lines
3.8 KiB
JavaScript
123 lines
3.8 KiB
JavaScript
/*
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* Copyright (C) 2016 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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"use strict";
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class Code {
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constructor()
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{
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this._blocks = [];
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this._stackSlots = [];
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this._gpTmps = [];
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this._fpTmps = [];
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this._callArgAreaSize = 0;
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this._frameSize = 0;
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}
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addBlock(frequency = 1)
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{
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return addIndexed(this._blocks, BasicBlock, frequency);
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}
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addStackSlot(byteSize, kind)
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{
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return addIndexed(this._stackSlots, StackSlot, byteSize, kind);
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}
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newTmp(type)
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{
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return addIndexed(this[`_${lowerSymbolName(type)}Tmps`], Tmp, type);
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}
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get size() { return this._blocks.length; }
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at(index) { return this._blocks[index]; }
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[Symbol.iterator]()
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{
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return this._blocks[Symbol.iterator]();
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}
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get blocks() { return this._blocks; }
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get stackSlots() { return this._stackSlots; }
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tmps(type) { return this[`_${lowerSymbolName(type)}Tmps`]; }
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get callArgAreaSize() { return this._callArgAreaSize; }
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requestCallArgAreaSize(size)
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{
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this._callArgAreaSize = Math.max(this._callArgAreaSize, roundUpToMultipleOf(stackAlignmentBytes, size));
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}
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get frameSize() { return this._frameSize; }
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setFrameSize(frameSize) { this._frameSize = frameSize; }
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hash()
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{
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let result = 0;
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for (let block of this) {
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result *= 1000001;
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result |= 0;
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for (let inst of block) {
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result *= 97;
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result |= 0;
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result += inst.hash();
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result |= 0;
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}
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for (let successor of block.successorBlocks) {
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result *= 7;
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result |= 0;
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result += successor.index;
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result |= 0;
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}
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}
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for (let slot of this.stackSlots) {
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result *= 101;
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result |= 0;
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result += slot.hash();
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result |= 0;
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}
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return result >>> 0;
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}
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toString()
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{
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let result = "";
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for (let block of this) {
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result += block.toStringDeep();
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}
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if (this.stackSlots.length) {
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result += "Stack slots:\n";
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for (let slot of this.stackSlots)
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result += ` ${slot}\n`;
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}
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if (this._frameSize)
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result += `Frame size: ${this._frameSize}\n`;
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if (this._callArgAreaSize)
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result += `Call arg area size: ${this._callArgAreaSize}\n`;
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return result;
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}
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}
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