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diff --git a/Source/JavaScriptCore/assembler/LinkBuffer.cpp b/Source/JavaScriptCore/assembler/LinkBuffer.cpp
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index b6577a9e8c4e..7745793670b1 100644
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--- a/Source/JavaScriptCore/assembler/LinkBuffer.cpp
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+++ b/Source/JavaScriptCore/assembler/LinkBuffer.cpp
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@@ -374,6 +374,7 @@ void LinkBuffer::copyCompactAndLinkCode(MacroAssembler& macroAssembler, JITCompi
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m_executableMemory->shrink(m_size);
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}
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+#if ENABLE(JIT)
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if (useFastJITPermissions()) {
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ASSERT(codeOutData == outData);
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if (UNLIKELY(Options::dumpJITMemoryPath()))
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@@ -382,6 +383,10 @@ void LinkBuffer::copyCompactAndLinkCode(MacroAssembler& macroAssembler, JITCompi
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ASSERT(codeOutData != outData);
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performJITMemcpy(codeOutData, outData, m_size);
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}
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+#else
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+ ASSERT(codeOutData != outData);
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+ performJITMemcpy(codeOutData, outData, m_size);
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+#endif
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jumpsToLink.clear();
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diff --git a/Source/WTF/wtf/PlatformEnable.h b/Source/WTF/wtf/PlatformEnable.h
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index 700f90adc6c3..f703d4239bc0 100644
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--- a/Source/WTF/wtf/PlatformEnable.h
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+++ b/Source/WTF/wtf/PlatformEnable.h
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@@ -871,6 +871,6 @@
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#error "ENABLE(WEBGL2) requires ENABLE(WEBGL)"
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#endif
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-#if CPU(ARM64) && CPU(ADDRESS64)
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+#if CPU(ARM64) && CPU(ADDRESS64) && ENABLE(JIT)
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#define USE_JUMP_ISLANDS 1
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#endif
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