WebKit/Source/JavaScriptCore/b3/air/AirLogRegisterPressure.cpp at main · WebKit/WebKit · GitHub

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* 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.

#include "config.h"

#include "AirLogRegisterPressure.h"

#if ENABLE(B3_JIT)

#include "AirArgInlines.h"

#include "AirCode.h"

#include "AirInstInlines.h"

#include "AirRegLiveness.h"

namespace JSC { namespace B3 { namespace Air {

void logRegisterPressure(Code& code)

{

const unsigned totalColumns = 200;

const unsigned registerColumns = 100;

RegLiveness liveness(code);

for (BasicBlock* block : code) {

RegLiveness::LocalCalc localCalc(liveness, block);

block->dumpHeader(WTF::dataFile());

Vector<CString> instDumps;

for (unsigned instIndex = block->size(); instIndex--;) {

Inst& inst = block->at(instIndex);

Inst* prevInst = block->get(instIndex - 1);

localCalc.execute(instIndex);

RegisterSet set;

set.merge(localCalc.live());

Inst::forEachDefWithExtraClobberedRegs<Reg>(

prevInst, &inst,

[&] (Reg reg, Arg::Role, Bank, Width width, PreservedWidth) {

ASSERT(width <= Width64 || Options::useWasmSIMD());

set.add(reg, width);

});

StringPrintStream instOut;

StringPrintStream lineOut;

lineOut.print(" ");

if (set.numberOfSetRegisters()) {

set.forEach(

[&] (Reg reg) {

CString text = toCString(" ", reg);

if (text.length() + lineOut.length() > totalColumns) {

instOut.print(lineOut.toCString(), "\n");

lineOut.reset();

lineOut.print(" ");

}

lineOut.print(text);

});

lineOut.print(":");

}

if (lineOut.length() > registerColumns) {

instOut.print(lineOut.toCString(), "\n");

lineOut.reset();

}

while (lineOut.length() < registerColumns)

lineOut.print(" ");

lineOut.print(inst);

instOut.print(lineOut.toCString(), "\n");

instDumps.append(instOut.toCString());

}

for (unsigned i = instDumps.size(); i--;)

dataLog(instDumps[i]);

block->dumpFooter(WTF::dataFile());

}

} } } // namespace JSC::B3::Air

#endif // ENABLE(B3_JIT)

WebKit/Source/JavaScriptCore/b3/air/AirLogRegisterPressure.cpp at main · WebKit/WebKit · GitHub

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