1 files changed, 139 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/b3/air/AirCode.cpp b/Source/JavaScriptCore/b3/air/AirCode.cpp
new file mode 100644
index 000000000..6664186c9
--- /dev/null
+++ b/Source/JavaScriptCore/b3/air/AirCode.cpp
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2015-2016 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 "AirCode.h"
+
+#if ENABLE(B3_JIT)
+
+#include "AirCCallSpecial.h"
+#include "B3BasicBlockUtils.h"
+#include "B3StackSlot.h"
+
+namespace JSC { namespace B3 { namespace Air {
+
+Code::Code(Procedure& proc)
+    : m_proc(proc)
+    , m_lastPhaseName("initial")
+{
+}
+
+Code::~Code()
+{
+}
+
+BasicBlock* Code::addBlock(double frequency)
+{
+    std::unique_ptr<BasicBlock> block(new BasicBlock(m_blocks.size(), frequency));
+    BasicBlock* result = block.get();
+    m_blocks.append(WTFMove(block));
+    return result;
+}
+
+StackSlot* Code::addStackSlot(unsigned byteSize, StackSlotKind kind, B3::StackSlot* b3Slot)
+{
+    return m_stackSlots.addNew(byteSize, kind, b3Slot);
+}
+
+StackSlot* Code::addStackSlot(B3::StackSlot* b3Slot)
+{
+    return addStackSlot(b3Slot->byteSize(), StackSlotKind::Locked, b3Slot);
+}
+
+Special* Code::addSpecial(std::unique_ptr<Special> special)
+{
+    special->m_code = this;
+    return m_specials.add(WTFMove(special));
+}
+
+CCallSpecial* Code::cCallSpecial()
+{
+    if (!m_cCallSpecial) {
+        m_cCallSpecial = static_cast<CCallSpecial*>(
+            addSpecial(std::make_unique<CCallSpecial>()));
+    }
+
+    return m_cCallSpecial;
+}
+
+void Code::resetReachability()
+{
+    B3::resetReachability(
+        m_blocks,
+        [&] (BasicBlock*) {
+            // We don't have to do anything special for deleted blocks.
+        });
+}
+
+void Code::dump(PrintStream& out) const
+{
+    for (BasicBlock* block : *this)
+        out.print(deepDump(block));
+    if (stackSlots().size()) {
+        out.print("Stack slots:\n");
+        for (StackSlot* slot : stackSlots())
+            out.print("    ", pointerDump(slot), ": ", deepDump(slot), "\n");
+    }
+    if (specials().size()) {
+        out.print("Specials:\n");
+        for (Special* special : specials())
+            out.print("    ", deepDump(special), "\n");
+    }
+    if (m_frameSize)
+        out.print("Frame size: ", m_frameSize, "\n");
+    if (m_callArgAreaSize)
+        out.print("Call arg area size: ", m_callArgAreaSize, "\n");
+    if (m_calleeSaveRegisters.size())
+        out.print("Callee saves: ", m_calleeSaveRegisters, "\n");
+}
+
+unsigned Code::findFirstBlockIndex(unsigned index) const
+{
+    while (index < size() && !at(index))
+        index++;
+    return index;
+}
+
+unsigned Code::findNextBlockIndex(unsigned index) const
+{
+    return findFirstBlockIndex(index + 1);
+}
+
+BasicBlock* Code::findNextBlock(BasicBlock* block) const
+{
+    unsigned index = findNextBlockIndex(block->index());
+    if (index < size())
+        return at(index);
+    return nullptr;
+}
+
+void Code::addFastTmp(Tmp tmp)
+{
+    m_fastTmps.add(tmp);
+}
+
+} } } // namespace JSC::B3::Air
+
+#endif // ENABLE(B3_JIT)