Lucas de Vries
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
#pragma once
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#include "angelscript.h"
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#include <vector>
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#include <map>
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namespace assembler {
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struct CodePage;
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struct CriticalSection;
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};
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enum JITSettings {
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//Should the JIT attempt to suspend? (Slightly faster, but makes suspension very rare if it occurs at all)
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JIT_NO_SUSPEND = 0x01,
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//Should the JIT reset the FPU entering System calls? (Slightly faster, may not work on all platforms)
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JIT_SYSCALL_FPU_NORESET = 0x02,
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//Should the JIT support error events from System calls? (Faster, but exceptions will generally be ignored, possibly leading to crashes)
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JIT_SYSCALL_NO_ERRORS = 0x04,
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//Do allocation/deallocation functions inspect the script context? (Faster, but won't work correctly if you try to get information about the script system during allocations)
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JIT_ALLOC_SIMPLE = 0x08,
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//Fall back to AngelScript to perform switch logic? (Slower, but uses less memory)
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JIT_NO_SWITCHES = 0x10,
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//Fall back to AngelScript to perform script calls
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// Slower, but can be used as a temporary workaround for angelscript changes
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JIT_NO_SCRIPT_CALLS = 0x20,
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//Make calling reference counting functions faster in common situations
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// Reference counting functions which access the script context will produce undefined results
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JIT_FAST_REFCOUNT = 0x40,
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};
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class asCJITCompiler : public asIJITCompiler {
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assembler::CodePage* activePage;
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std::multimap<asJITFunction,assembler::CodePage*> pages;
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assembler::CriticalSection* lock;
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unsigned flags;
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std::multimap<asJITFunction,unsigned char**> jumpTables;
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unsigned char** activeJumpTable;
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unsigned currentTableSize;
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struct DeferredCodePointer {
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void** jitFunction;
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void** jitEntry;
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};
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std::multimap<asIScriptFunction*,DeferredCodePointer> deferredPointers;
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public:
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asCJITCompiler(unsigned Flags = 0);
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~asCJITCompiler();
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int CompileFunction(asIScriptFunction *function, asJITFunction *output);
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void ReleaseJITFunction(asJITFunction func);
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void finalizePages();
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};
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