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