| /* |
| * Copyright (C) 2011-2019 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 "ValueRecovery.h" |
| |
| #include "JSCJSValueInlines.h" |
| |
| namespace JSC { |
| |
| JSValue ValueRecovery::recover(CallFrame* callFrame) const |
| { |
| switch (technique()) { |
| case DisplacedInJSStack: |
| return callFrame->r(virtualRegister()).jsValue(); |
| case Int32DisplacedInJSStack: |
| return jsNumber(callFrame->r(virtualRegister()).unboxedInt32()); |
| case Int52DisplacedInJSStack: |
| return jsNumber(callFrame->r(virtualRegister()).unboxedInt52()); |
| case StrictInt52DisplacedInJSStack: |
| return jsNumber(callFrame->r(virtualRegister()).unboxedStrictInt52()); |
| case DoubleDisplacedInJSStack: |
| return jsNumber(purifyNaN(callFrame->r(virtualRegister()).unboxedDouble())); |
| case CellDisplacedInJSStack: |
| return callFrame->r(virtualRegister()).unboxedCell(); |
| case BooleanDisplacedInJSStack: |
| #if USE(JSVALUE64) |
| return callFrame->r(virtualRegister()).jsValue(); |
| #else |
| return jsBoolean(callFrame->r(virtualRegister()).unboxedBoolean()); |
| #endif |
| case Constant: |
| return constant(); |
| default: |
| RELEASE_ASSERT_NOT_REACHED(); |
| return JSValue(); |
| } |
| } |
| |
| #if ENABLE(JIT) |
| |
| void ValueRecovery::dumpInContext(PrintStream& out, DumpContext* context) const |
| { |
| switch (technique()) { |
| case InGPR: |
| out.print(gpr()); |
| return; |
| case UnboxedInt32InGPR: |
| out.print("int32(", gpr(), ")"); |
| return; |
| case UnboxedInt52InGPR: |
| out.print("int52(", gpr(), ")"); |
| return; |
| case UnboxedStrictInt52InGPR: |
| out.print("strictInt52(", gpr(), ")"); |
| return; |
| case UnboxedBooleanInGPR: |
| out.print("bool(", gpr(), ")"); |
| return; |
| case UnboxedCellInGPR: |
| out.print("cell(", gpr(), ")"); |
| return; |
| case InFPR: |
| out.print(fpr()); |
| return; |
| case UnboxedDoubleInFPR: |
| out.print("double(", fpr(), ")"); |
| return; |
| #if USE(JSVALUE32_64) |
| case InPair: |
| out.print("pair(", tagGPR(), ", ", payloadGPR(), ")"); |
| return; |
| #endif |
| case DisplacedInJSStack: |
| out.print("*", virtualRegister()); |
| return; |
| case Int32DisplacedInJSStack: |
| out.print("*int32(", virtualRegister(), ")"); |
| return; |
| case Int52DisplacedInJSStack: |
| out.print("*int52(", virtualRegister(), ")"); |
| return; |
| case StrictInt52DisplacedInJSStack: |
| out.print("*strictInt52(", virtualRegister(), ")"); |
| return; |
| case DoubleDisplacedInJSStack: |
| out.print("*double(", virtualRegister(), ")"); |
| return; |
| case CellDisplacedInJSStack: |
| out.print("*cell(", virtualRegister(), ")"); |
| return; |
| case BooleanDisplacedInJSStack: |
| out.print("*bool(", virtualRegister(), ")"); |
| return; |
| case DirectArgumentsThatWereNotCreated: |
| out.print("DirectArguments(", nodeID(), ")"); |
| return; |
| case ClonedArgumentsThatWereNotCreated: |
| out.print("ClonedArguments(", nodeID(), ")"); |
| return; |
| case Constant: |
| out.print("[", inContext(constant(), context), "]"); |
| return; |
| case DontKnow: |
| out.printf("!"); |
| return; |
| } |
| RELEASE_ASSERT_NOT_REACHED(); |
| } |
| |
| void ValueRecovery::dump(PrintStream& out) const |
| { |
| dumpInContext(out, nullptr); |
| } |
| #endif // ENABLE(JIT) |
| |
| } // namespace JSC |
| |