gecko-dev/js/src/jsanalyzeinlines.h

56 lines
1.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jsanalyzeinlines_h
#define jsanalyzeinlines_h
#include "jsanalyze.h"
#include "jsopcodeinlines.h"
namespace js {
namespace analyze {
inline const SSAValue &
ScriptAnalysis::poppedValue(uint32_t offset, uint32_t which)
{
JS_ASSERT(offset < script_->length);
JS_ASSERT(which < GetUseCount(script_, offset) +
(ExtendedUse(script_->code + offset) ? 1 : 0));
return getCode(offset).poppedValues[which];
}
inline const SSAValue &
ScriptAnalysis::poppedValue(const jsbytecode *pc, uint32_t which)
{
return poppedValue(pc - script_->code, which);
}
inline SSAUseChain *&
ScriptAnalysis::useChain(const SSAValue &v)
{
JS_ASSERT(trackUseChain(v));
if (v.kind() == SSAValue::PUSHED)
return getCode(v.pushedOffset()).pushedUses[v.pushedIndex()];
if (v.kind() == SSAValue::VAR)
return getCode(v.varOffset()).pushedUses[GetDefCount(script_, v.varOffset())];
return v.phiNode()->uses;
}
inline jsbytecode *
ScriptAnalysis::getCallPC(jsbytecode *pc)
{
SSAUseChain *uses = useChain(SSAValue::PushedValue(pc - script_->code, 0));
JS_ASSERT(uses && uses->popped);
JS_ASSERT(js_CodeSpec[script_->code[uses->offset]].format & JOF_INVOKE);
return script_->code + uses->offset;
}
} /* namespace analyze */
} /* namespace js */
#endif /* jsanalyzeinlines_h */