1 files changed, 169 insertions, 0 deletions
diff --git a/src/3rdparty/v8/src/lithium.cc b/src/3rdparty/v8/src/lithium.cc
new file mode 100644
index 0000000..aeac2db
--- /dev/null
+++ b/src/3rdparty/v8/src/lithium.cc
@@ -0,0 +1,169 @@
+// Copyright 2011 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "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 THE COPYRIGHT
+// OWNER 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 "v8.h"
+#include "lithium.h"
+
+namespace v8 {
+namespace internal {
+
+
+void LOperand::PrintTo(StringStream* stream) {
+  LUnallocated* unalloc = NULL;
+  switch (kind()) {
+    case INVALID:
+      break;
+    case UNALLOCATED:
+      unalloc = LUnallocated::cast(this);
+      stream->Add("v%d", unalloc->virtual_register());
+      switch (unalloc->policy()) {
+        case LUnallocated::NONE:
+          break;
+        case LUnallocated::FIXED_REGISTER: {
+          const char* register_name =
+              Register::AllocationIndexToString(unalloc->fixed_index());
+          stream->Add("(=%s)", register_name);
+          break;
+        }
+        case LUnallocated::FIXED_DOUBLE_REGISTER: {
+          const char* double_register_name =
+              DoubleRegister::AllocationIndexToString(unalloc->fixed_index());
+          stream->Add("(=%s)", double_register_name);
+          break;
+        }
+        case LUnallocated::FIXED_SLOT:
+          stream->Add("(=%dS)", unalloc->fixed_index());
+          break;
+        case LUnallocated::MUST_HAVE_REGISTER:
+          stream->Add("(R)");
+          break;
+        case LUnallocated::WRITABLE_REGISTER:
+          stream->Add("(WR)");
+          break;
+        case LUnallocated::SAME_AS_FIRST_INPUT:
+          stream->Add("(1)");
+          break;
+        case LUnallocated::ANY:
+          stream->Add("(-)");
+          break;
+        case LUnallocated::IGNORE:
+          stream->Add("(0)");
+          break;
+      }
+      break;
+    case CONSTANT_OPERAND:
+      stream->Add("[constant:%d]", index());
+      break;
+    case STACK_SLOT:
+      stream->Add("[stack:%d]", index());
+      break;
+    case DOUBLE_STACK_SLOT:
+      stream->Add("[double_stack:%d]", index());
+      break;
+    case REGISTER:
+      stream->Add("[%s|R]", Register::AllocationIndexToString(index()));
+      break;
+    case DOUBLE_REGISTER:
+      stream->Add("[%s|R]", DoubleRegister::AllocationIndexToString(index()));
+      break;
+    case ARGUMENT:
+      stream->Add("[arg:%d]", index());
+      break;
+  }
+}
+
+
+int LOperand::VirtualRegister() {
+  LUnallocated* unalloc = LUnallocated::cast(this);
+  return unalloc->virtual_register();
+}
+
+
+bool LParallelMove::IsRedundant() const {
+  for (int i = 0; i < move_operands_.length(); ++i) {
+    if (!move_operands_[i].IsRedundant()) return false;
+  }
+  return true;
+}
+
+
+void LParallelMove::PrintDataTo(StringStream* stream) const {
+  bool first = true;
+  for (int i = 0; i < move_operands_.length(); ++i) {
+    if (!move_operands_[i].IsEliminated()) {
+      LOperand* source = move_operands_[i].source();
+      LOperand* destination = move_operands_[i].destination();
+      if (!first) stream->Add(" ");
+      first = false;
+      if (source->Equals(destination)) {
+        destination->PrintTo(stream);
+      } else {
+        destination->PrintTo(stream);
+        stream->Add(" = ");
+        source->PrintTo(stream);
+      }
+      stream->Add(";");
+    }
+  }
+}
+
+
+void LEnvironment::PrintTo(StringStream* stream) {
+  stream->Add("[id=%d|", ast_id());
+  stream->Add("[parameters=%d|", parameter_count());
+  stream->Add("[arguments_stack_height=%d|", arguments_stack_height());
+  for (int i = 0; i < values_.length(); ++i) {
+    if (i != 0) stream->Add(";");
+    if (values_[i] == NULL) {
+      stream->Add("[hole]");
+    } else {
+      values_[i]->PrintTo(stream);
+    }
+  }
+  stream->Add("]");
+}
+
+
+void LPointerMap::RecordPointer(LOperand* op) {
+  // Do not record arguments as pointers.
+  if (op->IsStackSlot() && op->index() < 0) return;
+  ASSERT(!op->IsDoubleRegister() && !op->IsDoubleStackSlot());
+  pointer_operands_.Add(op);
+}
+
+
+void LPointerMap::PrintTo(StringStream* stream) {
+  stream->Add("{");
+  for (int i = 0; i < pointer_operands_.length(); ++i) {
+    if (i != 0) stream->Add(";");
+    pointer_operands_[i]->PrintTo(stream);
+  }
+  stream->Add("} @%d", position());
+}
+
+
+} }  // namespace v8::internal