diff options
Diffstat (limited to 'deps/v8/src/crankshaft/x64/lithium-gap-resolver-x64.h')
-rw-r--r-- | deps/v8/src/crankshaft/x64/lithium-gap-resolver-x64.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/deps/v8/src/crankshaft/x64/lithium-gap-resolver-x64.h b/deps/v8/src/crankshaft/x64/lithium-gap-resolver-x64.h new file mode 100644 index 0000000000..641f0ee69f --- /dev/null +++ b/deps/v8/src/crankshaft/x64/lithium-gap-resolver-x64.h @@ -0,0 +1,50 @@ +// Copyright 2011 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef V8_CRANKSHAFT_X64_LITHIUM_GAP_RESOLVER_X64_H_ +#define V8_CRANKSHAFT_X64_LITHIUM_GAP_RESOLVER_X64_H_ + +#include "src/crankshaft/lithium.h" + +namespace v8 { +namespace internal { + +class LCodeGen; +class LGapResolver; + +class LGapResolver final BASE_EMBEDDED { + public: + explicit LGapResolver(LCodeGen* owner); + + // Resolve a set of parallel moves, emitting assembler instructions. + void Resolve(LParallelMove* parallel_move); + + private: + // Build the initial list of moves. + void BuildInitialMoveList(LParallelMove* parallel_move); + + // Perform the move at the moves_ index in question (possibly requiring + // other moves to satisfy dependencies). + void PerformMove(int index); + + // Emit a move and remove it from the move graph. + void EmitMove(int index); + + // Execute a move by emitting a swap of two operands. The move from + // source to destination is removed from the move graph. + void EmitSwap(int index); + + // Verify the move list before performing moves. + void Verify(); + + LCodeGen* cgen_; + + // List of moves not yet resolved. + ZoneList<LMoveOperands> moves_; +}; + +} // namespace internal +} // namespace v8 + +#endif // V8_CRANKSHAFT_X64_LITHIUM_GAP_RESOLVER_X64_H_ |