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lammps/lib/lepton/src/CompiledExpression.cpp

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35 KiB
C++

/* -------------------------------------------------------------------------- *
* Lepton *
* -------------------------------------------------------------------------- *
* This is part of the Lepton expression parser originating from *
* Simbios, the NIH National Center for Physics-Based Simulation of *
* Biological Structures at Stanford, funded under the NIH Roadmap for *
* Medical Research, grant U54 GM072970. See https://simtk.org. *
* *
* Portions copyright (c) 2013-2022 Stanford University and the Authors. *
* Authors: Peter Eastman *
* Contributors: *
* *
* 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 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, CONTRIBUTORS 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 "lepton/CompiledExpression.h"
#include "lepton/Operation.h"
#include "lepton/ParsedExpression.h"
#include <cinttypes>
#include <utility>
using namespace Lepton;
using namespace std;
#ifdef LEPTON_USE_JIT
using namespace asmjit;
#endif
CompiledExpression::CompiledExpression() : jitCode(NULL) {
}
CompiledExpression::CompiledExpression(const ParsedExpression& expression) : jitCode(NULL) {
ParsedExpression expr = expression.optimize(); // Just in case it wasn't already optimized.
vector<pair<ExpressionTreeNode, int> > temps;
compileExpression(expr.getRootNode(), temps);
int maxArguments = 1;
for (int i = 0; i < (int) operation.size(); i++)
if (operation[i]->getNumArguments() > maxArguments)
maxArguments = operation[i]->getNumArguments();
argValues.resize(maxArguments);
#ifdef LEPTON_USE_JIT
generateJitCode();
#endif
}
CompiledExpression::~CompiledExpression() {
for (int i = 0; i < (int) operation.size(); i++)
if (operation[i] != NULL)
delete operation[i];
}
CompiledExpression::CompiledExpression(const CompiledExpression& expression) : jitCode(NULL) {
*this = expression;
}
CompiledExpression& CompiledExpression::operator=(const CompiledExpression& expression) {
arguments = expression.arguments;
target = expression.target;
variableIndices = expression.variableIndices;
variableNames = expression.variableNames;
workspace.resize(expression.workspace.size());
argValues.resize(expression.argValues.size());
operation.resize(expression.operation.size());
for (int i = 0; i < (int) operation.size(); i++)
operation[i] = expression.operation[i]->clone();
setVariableLocations(variablePointers);
return *this;
}
void CompiledExpression::compileExpression(const ExpressionTreeNode& node, vector<pair<ExpressionTreeNode, int> >& temps) {
if (findTempIndex(node, temps) != -1)
return; // We have already processed a node identical to this one.
// Process the child nodes.
vector<int> args;
for (int i = 0; i < (int)node.getChildren().size(); i++) {
compileExpression(node.getChildren()[i], temps);
args.push_back(findTempIndex(node.getChildren()[i], temps));
}
// Process this node.
if (node.getOperation().getId() == Operation::VARIABLE) {
variableIndices[node.getOperation().getName()] = (int) workspace.size();
variableNames.insert(node.getOperation().getName());
}
else {
int stepIndex = (int) arguments.size();
arguments.push_back(vector<int>());
target.push_back((int) workspace.size());
operation.push_back(node.getOperation().clone());
if (args.size() == 0)
arguments[stepIndex].push_back(0); // The value won't actually be used. We just need something there.
else {
// If the arguments are sequential, we can just pass a pointer to the first one.
bool sequential = true;
for (int i = 1; i < (int)args.size(); i++)
if (args[i] != args[i-1]+1)
sequential = false;
if (sequential)
arguments[stepIndex].push_back(args[0]);
else
arguments[stepIndex] = args;
}
}
temps.push_back(make_pair(node, (int) workspace.size()));
workspace.push_back(0.0);
}
int CompiledExpression::findTempIndex(const ExpressionTreeNode& node, vector<pair<ExpressionTreeNode, int> >& temps) {
for (int i = 0; i < (int) temps.size(); i++)
if (temps[i].first == node)
return i;
return -1;
}
const set<string>& CompiledExpression::getVariables() const {
return variableNames;
}
double& CompiledExpression::getVariableReference(const string& name) {
map<string, double*>::iterator pointer = variablePointers.find(name);
if (pointer != variablePointers.end())
return *pointer->second;
map<string, int>::iterator index = variableIndices.find(name);
if (index == variableIndices.end())
throw Exception("getVariableReference: Unknown variable '"+name+"'");
return workspace[index->second];
}
void CompiledExpression::setVariableLocations(map<string, double*>& variableLocations) {
variablePointers = variableLocations;
#ifdef LEPTON_USE_JIT
// Rebuild the JIT code.
if (workspace.size() > 0)
generateJitCode();
#endif
// Make a list of all variables we will need to copy before evaluating the expression.
variablesToCopy.clear();
for (map<string, int>::const_iterator iter = variableIndices.begin(); iter != variableIndices.end(); ++iter) {
map<string, double*>::iterator pointer = variablePointers.find(iter->first);
if (pointer != variablePointers.end())
variablesToCopy.push_back(make_pair(&workspace[iter->second], pointer->second));
}
}
double CompiledExpression::evaluate() const {
if (jitCode)
return jitCode();
for (int i = 0; i < (int)variablesToCopy.size(); i++)
*variablesToCopy[i].first = *variablesToCopy[i].second;
// Loop over the operations and evaluate each one.
for (int step = 0; step < (int)operation.size(); step++) {
const vector<int>& args = arguments[step];
if (args.size() == 1)
workspace[target[step]] = operation[step]->evaluate(&workspace[args[0]], dummyVariables);
else {
for (int i = 0; i < (int)args.size(); i++)
argValues[i] = workspace[args[i]];
workspace[target[step]] = operation[step]->evaluate(&argValues[0], dummyVariables);
}
}
return workspace[workspace.size()-1];
}
#ifdef LEPTON_USE_JIT
static double evaluateOperation(Operation* op, double* args) {
static map<string, double> dummyVariables;
return op->evaluate(args, dummyVariables);
}
void CompiledExpression::findPowerGroups(vector<vector<int> >& groups, vector<vector<int> >& groupPowers, vector<int>& stepGroup) {
// Identify every step that raises an argument to an integer power.
vector<int> stepPower(operation.size(), 0);
vector<int> stepArg(operation.size(), -1);
for (int step = 0; step < (int)operation.size(); step++) {
Operation& op = *operation[step];
int power = 0;
if (op.getId() == Operation::SQUARE)
power = 2;
else if (op.getId() == Operation::CUBE)
power = 3;
else if (op.getId() == Operation::POWER_CONSTANT) {
double realPower = dynamic_cast<const Operation::PowerConstant*>(&op)->getValue();
if (realPower == (int) realPower)
power = (int) realPower;
}
if (power != 0) {
stepPower[step] = power;
stepArg[step] = arguments[step][0];
}
}
// Find groups that operate on the same argument and whose powers have the same sign.
stepGroup.resize(operation.size(), -1);
for (int i = 0; i < (int)operation.size(); i++) {
if (stepGroup[i] != -1)
continue;
vector<int> group, power;
for (int j = i; j < (int)operation.size(); j++) {
if (stepArg[i] == stepArg[j] && stepPower[i]*stepPower[j] > 0) {
stepGroup[j] = groups.size();
group.push_back(j);
power.push_back(stepPower[j]);
}
}
groups.push_back(group);
groupPowers.push_back(power);
}
}
#if defined(__ARM__) || defined(__ARM64__)
void CompiledExpression::generateJitCode() {
CodeHolder code;
code.init(runtime.environment());
a64::Compiler c(&code);
c.addFunc(FuncSignatureT<double>());
vector<arm::Vec> workspaceVar(workspace.size());
for (int i = 0; i < (int) workspaceVar.size(); i++)
workspaceVar[i] = c.newVecD();
arm::Gp argsPointer = c.newIntPtr();
c.mov(argsPointer, imm(&argValues[0]));
vector<vector<int> > groups, groupPowers;
vector<int> stepGroup;
findPowerGroups(groups, groupPowers, stepGroup);
// Load the arguments into variables.
for (set<string>::const_iterator iter = variableNames.begin(); iter != variableNames.end(); ++iter) {
map<string, int>::iterator index = variableIndices.find(*iter);
arm::Gp variablePointer = c.newIntPtr();
c.mov(variablePointer, imm(&getVariableReference(index->first)));
c.ldr(workspaceVar[index->second], arm::ptr(variablePointer, 0));
}
// Make a list of all constants that will be needed for evaluation.
vector<int> operationConstantIndex(operation.size(), -1);
for (int step = 0; step < (int) operation.size(); step++) {
// Find the constant value (if any) used by this operation.
Operation& op = *operation[step];
double value;
if (op.getId() == Operation::CONSTANT)
value = dynamic_cast<Operation::Constant&>(op).getValue();
else if (op.getId() == Operation::ADD_CONSTANT)
value = dynamic_cast<Operation::AddConstant&>(op).getValue();
else if (op.getId() == Operation::MULTIPLY_CONSTANT)
value = dynamic_cast<Operation::MultiplyConstant&>(op).getValue();
else if (op.getId() == Operation::RECIPROCAL)
value = 1.0;
else if (op.getId() == Operation::STEP)
value = 1.0;
else if (op.getId() == Operation::DELTA)
value = 1.0;
else if (op.getId() == Operation::POWER_CONSTANT) {
if (stepGroup[step] == -1)
value = dynamic_cast<Operation::PowerConstant&>(op).getValue();
else
value = 1.0;
}
else
continue;
// See if we already have a variable for this constant.
for (int i = 0; i < (int) constants.size(); i++)
if (value == constants[i]) {
operationConstantIndex[step] = i;
break;
}
if (operationConstantIndex[step] == -1) {
operationConstantIndex[step] = constants.size();
constants.push_back(value);
}
}
// Load constants into variables.
vector<arm::Vec> constantVar(constants.size());
if (constants.size() > 0) {
arm::Gp constantsPointer = c.newIntPtr();
c.mov(constantsPointer, imm(&constants[0]));
for (int i = 0; i < (int) constants.size(); i++) {
constantVar[i] = c.newVecD();
c.ldr(constantVar[i], arm::ptr(constantsPointer, 8*i));
}
}
// Evaluate the operations.
vector<bool> hasComputedPower(operation.size(), false);
for (int step = 0; step < (int) operation.size(); step++) {
if (hasComputedPower[step])
continue;
// When one or more steps involve raising the same argument to multiple integer
// powers, we can compute them all together for efficiency.
if (stepGroup[step] != -1) {
vector<int>& group = groups[stepGroup[step]];
vector<int>& powers = groupPowers[stepGroup[step]];
arm::Vec multiplier = c.newVecD();
if (powers[0] > 0)
c.fmov(multiplier, workspaceVar[arguments[step][0]]);
else {
c.fdiv(multiplier, constantVar[operationConstantIndex[step]], workspaceVar[arguments[step][0]]);
for (int i = 0; i < powers.size(); i++)
powers[i] = -powers[i];
}
vector<bool> hasAssigned(group.size(), false);
bool done = false;
while (!done) {
done = true;
for (int i = 0; i < group.size(); i++) {
if (powers[i]%2 == 1) {
if (!hasAssigned[i])
c.fmov(workspaceVar[target[group[i]]], multiplier);
else
c.fmul(workspaceVar[target[group[i]]], workspaceVar[target[group[i]]], multiplier);
hasAssigned[i] = true;
}
powers[i] >>= 1;
if (powers[i] != 0)
done = false;
}
if (!done)
c.fmul(multiplier, multiplier, multiplier);
}
for (int step : group)
hasComputedPower[step] = true;
continue;
}
// Evaluate the step.
Operation& op = *operation[step];
vector<int> args = arguments[step];
if (args.size() == 1) {
// One or more sequential arguments. Fill out the list.
for (int i = 1; i < op.getNumArguments(); i++)
args.push_back(args[0]+i);
}
// Generate instructions to execute this operation.
switch (op.getId()) {
case Operation::CONSTANT:
c.fmov(workspaceVar[target[step]], constantVar[operationConstantIndex[step]]);
break;
case Operation::ADD:
c.fadd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::SUBTRACT:
c.fsub(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::MULTIPLY:
c.fmul(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::DIVIDE:
c.fdiv(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::POWER:
generateTwoArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]], pow);
break;
case Operation::NEGATE:
c.fneg(workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::SQRT:
c.fsqrt(workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::EXP:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], exp);
break;
case Operation::LOG:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], log);
break;
case Operation::SIN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], sin);
break;
case Operation::COS:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], cos);
break;
case Operation::TAN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], tan);
break;
case Operation::ASIN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], asin);
break;
case Operation::ACOS:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], acos);
break;
case Operation::ATAN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], atan);
break;
case Operation::ATAN2:
generateTwoArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]], atan2);
break;
case Operation::SINH:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], sinh);
break;
case Operation::COSH:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], cosh);
break;
case Operation::TANH:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], tanh);
break;
case Operation::STEP:
c.cmge(workspaceVar[target[step]], workspaceVar[args[0]], imm(0));
c.and_(workspaceVar[target[step]], workspaceVar[target[step]], constantVar[operationConstantIndex[step]]);
break;
case Operation::DELTA:
c.cmeq(workspaceVar[target[step]], workspaceVar[args[0]], imm(0));
c.and_(workspaceVar[target[step]], workspaceVar[target[step]], constantVar[operationConstantIndex[step]]);
break;
case Operation::SQUARE:
c.fmul(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[0]]);
break;
case Operation::CUBE:
c.fmul(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[0]]);
c.fmul(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::RECIPROCAL:
c.fdiv(workspaceVar[target[step]], constantVar[operationConstantIndex[step]], workspaceVar[args[0]]);
break;
case Operation::ADD_CONSTANT:
c.fadd(workspaceVar[target[step]], workspaceVar[args[0]], constantVar[operationConstantIndex[step]]);
break;
case Operation::MULTIPLY_CONSTANT:
c.fmul(workspaceVar[target[step]], workspaceVar[args[0]], constantVar[operationConstantIndex[step]]);
break;
case Operation::POWER_CONSTANT:
generateTwoArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], constantVar[operationConstantIndex[step]], pow);
break;
case Operation::MIN:
c.fmin(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::MAX:
c.fmax(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::ABS:
c.fabs(workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::FLOOR:
c.frintm(workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::CEIL:
c.frintp(workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::SELECT:
c.fcmeq(workspaceVar[target[step]], workspaceVar[args[0]], imm(0));
c.bsl(workspaceVar[target[step]], workspaceVar[args[2]], workspaceVar[args[1]]);
break;
default:
// Just invoke evaluateOperation().
for (int i = 0; i < (int) args.size(); i++)
c.str(workspaceVar[args[i]], arm::ptr(argsPointer, 8*i));
arm::Gp fn = c.newIntPtr();
c.mov(fn, imm((void*) evaluateOperation));
InvokeNode* invoke;
c.invoke(&invoke, fn, FuncSignatureT<double, Operation*, double*>());
invoke->setArg(0, imm(&op));
invoke->setArg(1, imm(&argValues[0]));
invoke->setRet(0, workspaceVar[target[step]]);
}
}
c.ret(workspaceVar[workspace.size()-1]);
c.endFunc();
c.finalize();
runtime.add(&jitCode, &code);
}
void CompiledExpression::generateSingleArgCall(a64::Compiler& c, arm::Vec& dest, arm::Vec& arg, double (*function)(double)) {
arm::Gp fn = c.newIntPtr();
c.mov(fn, imm((void*) function));
InvokeNode* invoke;
c.invoke(&invoke, fn, FuncSignatureT<double, double>());
invoke->setArg(0, arg);
invoke->setRet(0, dest);
}
void CompiledExpression::generateTwoArgCall(a64::Compiler& c, arm::Vec& dest, arm::Vec& arg1, arm::Vec& arg2, double (*function)(double, double)) {
arm::Gp fn = c.newIntPtr();
c.mov(fn, imm((void*) function));
InvokeNode* invoke;
c.invoke(&invoke, fn, FuncSignatureT<double, double, double>());
invoke->setArg(0, arg1);
invoke->setArg(1, arg2);
invoke->setRet(0, dest);
}
#else
union int64_to_double {
int64_to_double(const int64_t &_i) { i = _i; }
int64_t i;
double d;
};
void CompiledExpression::generateJitCode() {
const CpuInfo& cpu = CpuInfo::host();
if (!cpu.hasFeature(CpuFeatures::X86::kAVX))
return;
CodeHolder code;
code.init(runtime.environment());
x86::Compiler c(&code);
FuncNode* funcNode = c.addFunc(FuncSignatureT<double>());
funcNode->frame().setAvxEnabled();
vector<x86::Xmm> workspaceVar(workspace.size());
for (int i = 0; i < (int) workspaceVar.size(); i++)
workspaceVar[i] = c.newXmmSd();
x86::Gp argsPointer = c.newIntPtr();
c.mov(argsPointer, imm(&argValues[0]));
vector<vector<int> > groups, groupPowers;
vector<int> stepGroup;
findPowerGroups(groups, groupPowers, stepGroup);
// Load the arguments into variables.
x86::Gp variablePointer = c.newIntPtr();
for (set<string>::const_iterator iter = variableNames.begin(); iter != variableNames.end(); ++iter) {
map<string, int>::iterator index = variableIndices.find(*iter);
c.mov(variablePointer, imm(&getVariableReference(index->first)));
c.vmovsd(workspaceVar[index->second], x86::ptr(variablePointer, 0, 0));
}
// Make a list of all constants that will be needed for evaluation.
vector<int> operationConstantIndex(operation.size(), -1);
for (int step = 0; step < (int) operation.size(); step++) {
// Find the constant value (if any) used by this operation.
Operation& op = *operation[step];
double value;
if (op.getId() == Operation::CONSTANT)
value = dynamic_cast<Operation::Constant&>(op).getValue();
else if (op.getId() == Operation::ADD_CONSTANT)
value = dynamic_cast<Operation::AddConstant&>(op).getValue();
else if (op.getId() == Operation::MULTIPLY_CONSTANT)
value = dynamic_cast<Operation::MultiplyConstant&>(op).getValue();
else if (op.getId() == Operation::RECIPROCAL)
value = 1.0;
else if (op.getId() == Operation::STEP)
value = 1.0;
else if (op.getId() == Operation::DELTA)
value = 1.0;
else if (op.getId() == Operation::ABS)
value = int64_to_double(0x7FFFFFFFFFFFFFFF).d;
else if (op.getId() == Operation::POWER_CONSTANT) {
if (stepGroup[step] == -1)
value = dynamic_cast<Operation::PowerConstant&>(op).getValue();
else
value = 1.0;
}
else
continue;
// See if we already have a variable for this constant.
for (int i = 0; i < (int) constants.size(); i++)
if (value == constants[i]) {
operationConstantIndex[step] = i;
break;
}
if (operationConstantIndex[step] == -1) {
operationConstantIndex[step] = constants.size();
constants.push_back(value);
}
}
// Load constants into variables.
vector<x86::Xmm> constantVar(constants.size());
if (constants.size() > 0) {
x86::Gp constantsPointer = c.newIntPtr();
c.mov(constantsPointer, imm(&constants[0]));
for (int i = 0; i < (int) constants.size(); i++) {
constantVar[i] = c.newXmmSd();
c.vmovsd(constantVar[i], x86::ptr(constantsPointer, 8*i, 0));
}
}
// Evaluate the operations.
vector<bool> hasComputedPower(operation.size(), false);
for (int step = 0; step < (int) operation.size(); step++) {
if (hasComputedPower[step])
continue;
// When one or more steps involve raising the same argument to multiple integer
// powers, we can compute them all together for efficiency.
if (stepGroup[step] != -1) {
vector<int>& group = groups[stepGroup[step]];
vector<int>& powers = groupPowers[stepGroup[step]];
x86::Xmm multiplier = c.newXmmSd();
if (powers[0] > 0)
c.vmovsd(multiplier, workspaceVar[arguments[step][0]], workspaceVar[arguments[step][0]]);
else {
c.vdivsd(multiplier, constantVar[operationConstantIndex[step]], workspaceVar[arguments[step][0]]);
for (int i = 0; i < (int)powers.size(); i++)
powers[i] = -powers[i];
}
vector<bool> hasAssigned(group.size(), false);
bool done = false;
while (!done) {
done = true;
for (int i = 0; i < (int)group.size(); i++) {
if (powers[i]%2 == 1) {
if (!hasAssigned[i])
c.vmovsd(workspaceVar[target[group[i]]], multiplier, multiplier);
else
c.vmulsd(workspaceVar[target[group[i]]], workspaceVar[target[group[i]]], multiplier);
hasAssigned[i] = true;
}
powers[i] >>= 1;
if (powers[i] != 0)
done = false;
}
if (!done)
c.vmulsd(multiplier, multiplier, multiplier);
}
for (int step : group)
hasComputedPower[step] = true;
continue;
}
// Evaluate the step.
Operation& op = *operation[step];
vector<int> args = arguments[step];
if (args.size() == 1) {
// One or more sequential arguments. Fill out the list.
for (int i = 1; i < op.getNumArguments(); i++)
args.push_back(args[0]+i);
}
// Generate instructions to execute this operation.
switch (op.getId()) {
case Operation::CONSTANT:
c.vmovsd(workspaceVar[target[step]], constantVar[operationConstantIndex[step]], constantVar[operationConstantIndex[step]]);
break;
case Operation::ADD:
c.vaddsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::SUBTRACT:
c.vsubsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::MULTIPLY:
c.vmulsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::DIVIDE:
c.vdivsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::POWER:
generateTwoArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]], pow);
break;
case Operation::NEGATE:
c.vxorps(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[target[step]]);
c.vsubsd(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::SQRT:
c.vsqrtsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[0]]);
break;
case Operation::EXP:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], exp);
break;
case Operation::LOG:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], log);
break;
case Operation::SIN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], sin);
break;
case Operation::COS:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], cos);
break;
case Operation::TAN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], tan);
break;
case Operation::ASIN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], asin);
break;
case Operation::ACOS:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], acos);
break;
case Operation::ATAN:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], atan);
break;
case Operation::ATAN2:
generateTwoArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]], atan2);
break;
case Operation::SINH:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], sinh);
break;
case Operation::COSH:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], cosh);
break;
case Operation::TANH:
generateSingleArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], tanh);
break;
case Operation::STEP:
c.vxorps(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[target[step]]);
c.vcmpsd(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[args[0]], imm(18)); // Comparison mode is _CMP_LE_OQ = 18
c.vandps(workspaceVar[target[step]], workspaceVar[target[step]], constantVar[operationConstantIndex[step]]);
break;
case Operation::DELTA:
c.vxorps(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[target[step]]);
c.vcmpsd(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[args[0]], imm(16)); // Comparison mode is _CMP_EQ_OS = 16
c.vandps(workspaceVar[target[step]], workspaceVar[target[step]], constantVar[operationConstantIndex[step]]);
break;
case Operation::SQUARE:
c.vmulsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[0]]);
break;
case Operation::CUBE:
c.vmulsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[0]]);
c.vmulsd(workspaceVar[target[step]], workspaceVar[target[step]], workspaceVar[args[0]]);
break;
case Operation::RECIPROCAL:
c.vdivsd(workspaceVar[target[step]], constantVar[operationConstantIndex[step]], workspaceVar[args[0]]);
break;
case Operation::ADD_CONSTANT:
c.vaddsd(workspaceVar[target[step]], workspaceVar[args[0]], constantVar[operationConstantIndex[step]]);
break;
case Operation::MULTIPLY_CONSTANT:
c.vmulsd(workspaceVar[target[step]], workspaceVar[args[0]], constantVar[operationConstantIndex[step]]);
break;
case Operation::POWER_CONSTANT:
generateTwoArgCall(c, workspaceVar[target[step]], workspaceVar[args[0]], constantVar[operationConstantIndex[step]], pow);
break;
case Operation::MIN:
c.vminsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::MAX:
c.vmaxsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[1]]);
break;
case Operation::ABS:
c.vandpd(workspaceVar[target[step]], workspaceVar[args[0]], constantVar[operationConstantIndex[step]]);
break;
case Operation::FLOOR:
c.vroundsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[0]], imm(1));
break;
case Operation::CEIL:
c.vroundsd(workspaceVar[target[step]], workspaceVar[args[0]], workspaceVar[args[0]], imm(2));
break;
case Operation::SELECT:
{
x86::Xmm mask = c.newXmmSd();
c.vxorps(mask, mask, mask);
c.vcmpsd(mask, mask, workspaceVar[args[0]], imm(0)); // Comparison mode is _CMP_EQ_OQ = 0
c.vblendvps(workspaceVar[target[step]], workspaceVar[args[1]], workspaceVar[args[2]], mask);
break;
}
default:
// Just invoke evaluateOperation().
for (int i = 0; i < (int) args.size(); i++)
c.vmovsd(x86::ptr(argsPointer, 8*i, 0), workspaceVar[args[i]]);
x86::Gp fn = c.newIntPtr();
c.mov(fn, imm((void*) evaluateOperation));
InvokeNode* invoke;
c.invoke(&invoke, fn, FuncSignatureT<double, Operation*, double*>());
invoke->setArg(0, imm(&op));
invoke->setArg(1, imm(&argValues[0]));
invoke->setRet(0, workspaceVar[target[step]]);
}
}
c.ret(workspaceVar[workspace.size()-1]);
c.endFunc();
c.finalize();
runtime.add(&jitCode, &code);
}
void CompiledExpression::generateSingleArgCall(x86::Compiler& c, x86::Xmm& dest, x86::Xmm& arg, double (*function)(double)) {
x86::Gp fn = c.newIntPtr();
c.mov(fn, imm((void*) function));
InvokeNode* invoke;
c.invoke(&invoke, fn, FuncSignatureT<double, double>());
invoke->setArg(0, arg);
invoke->setRet(0, dest);
}
void CompiledExpression::generateTwoArgCall(x86::Compiler& c, x86::Xmm& dest, x86::Xmm& arg1, x86::Xmm& arg2, double (*function)(double, double)) {
x86::Gp fn = c.newIntPtr();
c.mov(fn, imm((void*) function));
InvokeNode* invoke;
c.invoke(&invoke, fn, FuncSignatureT<double, double, double>());
invoke->setArg(0, arg1);
invoke->setArg(1, arg2);
invoke->setRet(0, dest);
}
#endif
#endif