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/*
* Copyright (C) 2015 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.
*/
#include "config.h"
#include "AirRegisterPriority.h"
#if ENABLE(B3_JIT)
#include "RegisterSet.h"
namespace JSC { namespace B3 { namespace Air {
const Vector<GPRReg>& gprsInPriorityOrder()
{
static Vector<GPRReg>* result;
static std::once_flag once;
std::call_once(
once,
[] {
result = new Vector<GPRReg>();
RegisterSet all = RegisterSet::allGPRs();
all.exclude(RegisterSet::stackRegisters());
all.exclude(RegisterSet::reservedHardwareRegisters());
RegisterSet calleeSave = RegisterSet::calleeSaveRegisters();
all.forEach(
[&] (Reg reg) {
if (!calleeSave.get(reg))
result->append(reg.gpr());
});
all.forEach(
[&] (Reg reg) {
if (calleeSave.get(reg))
result->append(reg.gpr());
});
});
return *result;
}
const Vector<FPRReg>& fprsInPriorityOrder()
{
static Vector<FPRReg>* result;
static std::once_flag once;
std::call_once(
once,
[] {
result = new Vector<FPRReg>();
RegisterSet all = RegisterSet::allFPRs();
RegisterSet calleeSave = RegisterSet::calleeSaveRegisters();
all.forEach(
[&] (Reg reg) {
if (!calleeSave.get(reg))
result->append(reg.fpr());
});
all.forEach(
[&] (Reg reg) {
if (calleeSave.get(reg))
result->append(reg.fpr());
});
});
return *result;
}
const Vector<Reg>& regsInPriorityOrder(Arg::Type type)
{
static Vector<Reg>* result[Arg::numTypes];
static std::once_flag once;
std::call_once(
once,
[] {
result[Arg::GP] = new Vector<Reg>();
for (GPRReg reg : gprsInPriorityOrder())
result[Arg::GP]->append(Reg(reg));
result[Arg::FP] = new Vector<Reg>();
for (FPRReg reg : fprsInPriorityOrder())
result[Arg::FP]->append(Reg(reg));
});
return *result[type];
}
} } } // namespace JSC::B3::Air
#endif // ENABLE(B3_JIT)
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