--- /dev/null
+// 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 "x64/lithium-x64.h"
+#include "x64/lithium-codegen-x64.h"
+
+namespace v8 {
+namespace internal {
+
+
+LChunk* LChunkBuilder::Build() {
+ ASSERT(is_unused());
+ chunk_ = new LChunk(graph());
+ HPhase phase("Building chunk", chunk_);
+ status_ = BUILDING;
+ const ZoneList<HBasicBlock*>* blocks = graph()->blocks();
+ for (int i = 0; i < blocks->length(); i++) {
+ HBasicBlock* next = NULL;
+ if (i < blocks->length() - 1) next = blocks->at(i + 1);
+ DoBasicBlock(blocks->at(i), next);
+ if (is_aborted()) return NULL;
+ }
+ status_ = DONE;
+ return chunk_;
+}
+
+
+void LChunkBuilder::Abort(const char* format, ...) {
+ if (FLAG_trace_bailout) {
+ SmartPointer<char> debug_name = graph()->debug_name()->ToCString();
+ PrintF("Aborting LChunk building in @\"%s\": ", *debug_name);
+ va_list arguments;
+ va_start(arguments, format);
+ OS::VPrint(format, arguments);
+ va_end(arguments);
+ PrintF("\n");
+ }
+ status_ = ABORTED;
+}
+
+
+void LChunkBuilder::DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block) {
+ ASSERT(is_building());
+ Abort("Lithium not implemented on x64.");
+}
+
+
+} } // namespace v8::internal
}
virtual void PrintTo(StringStream* stream) const { UNIMPLEMENTED(); }
+
+ private:
+ SetOncePointer<LEnvironment> environment_;
+ SetOncePointer<LPointerMap> pointer_map_;
+ SetOncePointer<LOperand> result_;
+ HValue* hydrogen_value_;
+ SetOncePointer<LEnvironment> deoptimization_environment_;
};
class LParallelMove : public ZoneObject {
public:
- LParallelMove() { }
+ LParallelMove() : move_operands_(4) { }
void AddMove(LOperand* from, LOperand* to) {
UNIMPLEMENTED();
UNIMPLEMENTED();
return NULL;
}
+
+ private:
+ ZoneList<LMoveOperands> move_operands_;
};
UNIMPLEMENTED();
return NULL;
}
+
+ private:
+ LParallelMove* parallel_moves_[LAST_INNER_POSITION + 1];
+ HBasicBlock* block_;
};
class LLabel: public LGap {
public:
explicit LLabel(HBasicBlock* block) : LGap(block) { }
+
+ private:
+ Label label_;
+ LLabel* replacement_;
};
LOperand* spill_operand) {
UNIMPLEMENTED();
}
+
+ private:
+ // Arrays of spill slot operands for registers with an assigned spill
+ // slot, i.e., that must also be restored to the spill slot on OSR entry.
+ // NULL if the register has no assigned spill slot. Indexed by allocation
+ // index.
+ LOperand* register_spills_[Register::kNumAllocatableRegisters];
+ LOperand* double_register_spills_[DoubleRegister::kNumAllocatableRegisters];
};
class LPointerMap: public ZoneObject {
public:
- explicit LPointerMap(int position) { }
+ explicit LPointerMap(int position)
+ : pointer_operands_(8), position_(position), lithium_position_(-1) { }
int lithium_position() const {
UNIMPLEMENTED();
}
void RecordPointer(LOperand* op) { UNIMPLEMENTED(); }
+
+ private:
+ ZoneList<LOperand*> pointer_operands_;
+ int position_;
+ int lithium_position_;
};
-class LChunk: public ZoneObject {
+class LEnvironment: public ZoneObject {
public:
- explicit LChunk(HGraph* graph) { }
-
- HGraph* graph() const {
- UNIMPLEMENTED();
- return NULL;
+ LEnvironment(Handle<JSFunction> closure,
+ int ast_id,
+ int parameter_count,
+ int argument_count,
+ int value_count,
+ LEnvironment* outer)
+ : closure_(closure),
+ arguments_stack_height_(argument_count),
+ deoptimization_index_(Safepoint::kNoDeoptimizationIndex),
+ translation_index_(-1),
+ ast_id_(ast_id),
+ parameter_count_(parameter_count),
+ values_(value_count),
+ representations_(value_count),
+ spilled_registers_(NULL),
+ spilled_double_registers_(NULL),
+ outer_(outer) {
}
- const ZoneList<LPointerMap*>* pointer_maps() const {
- UNIMPLEMENTED();
- return NULL;
+ Handle<JSFunction> closure() const { return closure_; }
+ int arguments_stack_height() const { return arguments_stack_height_; }
+ int deoptimization_index() const { return deoptimization_index_; }
+ int translation_index() const { return translation_index_; }
+ int ast_id() const { return ast_id_; }
+ int parameter_count() const { return parameter_count_; }
+ const ZoneList<LOperand*>* values() const { return &values_; }
+ LEnvironment* outer() const { return outer_; }
+
+ private:
+ Handle<JSFunction> closure_;
+ int arguments_stack_height_;
+ int deoptimization_index_;
+ int translation_index_;
+ int ast_id_;
+ int parameter_count_;
+ ZoneList<LOperand*> values_;
+ ZoneList<Representation> representations_;
+
+ // Allocation index indexed arrays of spill slot operands for registers
+ // that are also in spill slots at an OSR entry. NULL for environments
+ // that do not correspond to an OSR entry.
+ LOperand** spilled_registers_;
+ LOperand** spilled_double_registers_;
+
+ LEnvironment* outer_;
+};
+
+
+class LChunkBuilder;
+class LChunk: public ZoneObject {
+ public:
+ explicit LChunk(HGraph* graph)
+ : spill_slot_count_(0),
+ graph_(graph),
+ instructions_(32),
+ pointer_maps_(8),
+ inlined_closures_(1) { }
+
+ int spill_slot_count() const { return spill_slot_count_; }
+ HGraph* graph() const { return graph_; }
+ const ZoneList<LInstruction*>* instructions() const { return &instructions_; }
+ const ZoneList<LPointerMap*>* pointer_maps() const { return &pointer_maps_; }
+ const ZoneList<Handle<JSFunction> >* inlined_closures() const {
+ return &inlined_closures_;
}
LOperand* GetNextSpillSlot(bool double_slot) {
return NULL;
}
- const ZoneList<LInstruction*>* instructions() const {
- UNIMPLEMENTED();
- return NULL;
- }
-
int GetParameterStackSlot(int index) const {
UNIMPLEMENTED();
return 0;
void MarkEmptyBlocks() { UNIMPLEMENTED(); }
#ifdef DEBUG
- void Verify() { UNIMPLEMENTED(); }
+ void Verify() { }
#endif
+
+ private:
+ int spill_slot_count_;
+ HGraph* const graph_;
+ ZoneList<LInstruction*> instructions_;
+ ZoneList<LPointerMap*> pointer_maps_;
+ ZoneList<Handle<JSFunction> > inlined_closures_;
};
class LChunkBuilder BASE_EMBEDDED {
public:
- LChunkBuilder(HGraph* graph, LAllocator* allocator) { }
+ LChunkBuilder(HGraph* graph, LAllocator* allocator)
+ : chunk_(NULL),
+ graph_(graph),
+ status_(UNUSED),
+ current_instruction_(NULL),
+ current_block_(NULL),
+ next_block_(NULL),
+ argument_count_(0),
+ allocator_(allocator),
+ position_(RelocInfo::kNoPosition),
+ instructions_pending_deoptimization_environment_(NULL),
+ pending_deoptimization_ast_id_(AstNode::kNoNumber) { }
// Build the sequence for the graph.
- LChunk* Build() {
- UNIMPLEMENTED();
- return NULL;
- };
+ LChunk* Build();
// Declare methods that deal with the individual node types.
#define DECLARE_DO(type) LInstruction* Do##type(H##type* node) { \
HYDROGEN_CONCRETE_INSTRUCTION_LIST(DECLARE_DO)
#undef DECLARE_DO
+ private:
+ enum Status {
+ UNUSED,
+ BUILDING,
+ DONE,
+ ABORTED
+ };
+
+ LChunk* chunk() const { return chunk_; }
+ HGraph* graph() const { return graph_; }
+
+ bool is_unused() const { return status_ == UNUSED; }
+ bool is_building() const { return status_ == BUILDING; }
+ bool is_done() const { return status_ == DONE; }
+ bool is_aborted() const { return status_ == ABORTED; }
+
+ void Abort(const char* format, ...);
+
+ void DoBasicBlock(HBasicBlock* block, HBasicBlock* next_block);
+
+ LChunk* chunk_;
+ HGraph* const graph_;
+ Status status_;
+ HInstruction* current_instruction_;
+ HBasicBlock* current_block_;
+ HBasicBlock* next_block_;
+ int argument_count_;
+ LAllocator* allocator_;
+ int position_;
+ LInstruction* instructions_pending_deoptimization_environment_;
+ int pending_deoptimization_ast_id_;
+
DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
};
projects / platform / upstream / v8.git / commitdiff