| 1 | /*
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| 2 | * Copyright (C) 2021 Apple Inc. All rights reserved.
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| 3 | *
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| 4 | * Redistribution and use in source and binary forms, with or without
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| 5 | * modification, are permitted provided that the following conditions
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| 6 | * are met:
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| 7 | * 1. Redistributions of source code must retain the above copyright
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| 8 | * notice, this list of conditions and the following disclaimer.
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| 9 | * 2. Redistributions in binary form must reproduce the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer in the
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| 11 | * documentation and/or other materials provided with the distribution.
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| 12 | *
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| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 24 | */
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| 25 |
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| 26 | #include "config.h"
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| 27 | #include "BaselineJITPlan.h"
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| 28 |
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| 29 | #if ENABLE(JIT)
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| 30 |
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| 31 | namespace JSC {
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| 32 |
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| 33 | BaselineJITPlan::BaselineJITPlan(CodeBlock* codeBlock, BytecodeIndex loopOSREntryBytecodeIndex)
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| 34 | : JITPlan(JITCompilationMode::Baseline, codeBlock)
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| 35 | , m_jit(codeBlock->vm(), codeBlock, loopOSREntryBytecodeIndex)
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| 36 | {
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| 37 | #if CPU(ARM64E)
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| 38 | m_jit.m_assembler.buffer().arm64eHash().deallocatePinForCurrentThread();
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| 39 | #endif
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| 40 | m_jit.doMainThreadPreparationBeforeCompile();
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| 41 | }
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| 42 |
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| 43 | auto BaselineJITPlan::compileInThreadImpl() -> CompilationPath
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| 44 | {
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| 45 | #if CPU(ARM64E)
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| 46 | m_jit.m_assembler.buffer().arm64eHash().allocatePinForCurrentThreadAndInitializeHash();
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| 47 | #endif
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| 48 | m_jit.compileAndLinkWithoutFinalizing(JITCompilationCanFail);
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| 49 | return BaselinePath;
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| 50 | }
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| 51 |
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| 52 | size_t BaselineJITPlan::codeSize() const
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| 53 | {
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| 54 | return m_jit.codeSize();
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| 55 | }
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| 56 |
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| 57 | CompilationResult BaselineJITPlan::finalize()
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| 58 | {
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| 59 | CompilationResult result = m_jit.finalizeOnMainThread(m_codeBlock);
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| 60 | switch (result) {
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| 61 | case CompilationFailed:
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| 62 | CODEBLOCK_LOG_EVENT(m_codeBlock, "delayJITCompile", ("compilation failed"));
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| 63 | dataLogLnIf(Options::verboseOSR(), " JIT compilation failed.");
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| 64 | m_codeBlock->dontJITAnytimeSoon();
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| 65 | m_codeBlock->m_didFailJITCompilation = true;
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| 66 | break;
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| 67 | case CompilationSuccessful:
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| 68 | WTF::crossModifyingCodeFence();
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| 69 | dataLogLnIf(Options::verboseOSR(), " JIT compilation successful.");
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| 70 | m_codeBlock->ownerExecutable()->installCode(m_codeBlock);
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| 71 | m_codeBlock->jitSoon();
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| 72 | break;
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| 73 | default:
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| 74 | RELEASE_ASSERT_NOT_REACHED();
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| 75 | break;
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| 76 | }
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| 77 |
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| 78 | return result;
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| 79 | }
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| 80 |
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| 81 | } // namespace JSC
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| 82 |
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| 83 | #endif // ENABLE(JIT)
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