JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / jit / JITDisassembler.h

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+/*
+ * Copyright (C) 2012 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. 
+ */
+
+#ifndef JITDisassembler_h
+#define JITDisassembler_h
+
+#include <wtf/Platform.h>
+
+#if ENABLE(JIT)
+
+#include "LinkBuffer.h"
+#include "MacroAssembler.h"
+#include "ProfilerDatabase.h"
+#include <wtf/Vector.h>
+
+namespace JSC {
+
+class CodeBlock;
+
+class JITDisassembler {
+    WTF_MAKE_FAST_ALLOCATED;
+public:
+    JITDisassembler(CodeBlock*);
+    ~JITDisassembler();
+    
+    void setStartOfCode(MacroAssembler::Label label) { m_startOfCode = label; }
+    void setForBytecodeMainPath(unsigned bytecodeIndex, MacroAssembler::Label label)
+    {
+        m_labelForBytecodeIndexInMainPath[bytecodeIndex] = label;
+    }
+    void setForBytecodeSlowPath(unsigned bytecodeIndex, MacroAssembler::Label label)
+    {
+        m_labelForBytecodeIndexInSlowPath[bytecodeIndex] = label;
+    }
+    void setEndOfSlowPath(MacroAssembler::Label label) { m_endOfSlowPath = label; }
+    void setEndOfCode(MacroAssembler::Label label) { m_endOfCode = label; }
+    
+    void dump(LinkBuffer&);
+    void dump(PrintStream&, LinkBuffer&);
+    void reportToProfiler(Profiler::Compilation*, LinkBuffer&);
+
+private:
+    void dumpHeader(PrintStream&, LinkBuffer&);
+    MacroAssembler::Label firstSlowLabel();
+    
+    struct DumpedOp {
+        unsigned index;
+        CString disassembly;
+    };
+    Vector<DumpedOp> dumpVectorForInstructions(LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
+        
+    void dumpForInstructions(PrintStream&, LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
+    void reportInstructions(Profiler::Compilation*, LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
+    
+    void dumpDisassembly(PrintStream&, LinkBuffer&, MacroAssembler::Label from, MacroAssembler::Label to);
+    
+    CodeBlock* m_codeBlock;
+    MacroAssembler::Label m_startOfCode;
+    Vector<MacroAssembler::Label> m_labelForBytecodeIndexInMainPath;
+    Vector<MacroAssembler::Label> m_labelForBytecodeIndexInSlowPath;
+    MacroAssembler::Label m_endOfSlowPath;
+    MacroAssembler::Label m_endOfCode;
+};
+
+} // namespace JSC
+
+#endif // ENABLE(JIT)
+
+#endif // JITDisassembler_h
+