[Turbofan] Add concept of FP register aliasing on ARM 32.

src/compiler/register-allocator.h

 // Copyright 2014 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_REGISTER_ALLOCATOR_H_
 #define V8_REGISTER_ALLOCATOR_H_
 
 #include "src/compiler/instruction.h"
 #include "src/ostreams.h"
 #include "src/register-configuration.h"
@@ skipping 753 matching lines @@
   const ZoneVector<TopLevelLiveRange*>& live_ranges() const {
     return live_ranges_;
   }
   ZoneVector<TopLevelLiveRange*>& live_ranges() { return live_ranges_; }
   const ZoneVector<TopLevelLiveRange*>& fixed_live_ranges() const {
     return fixed_live_ranges_;
   }
   ZoneVector<TopLevelLiveRange*>& fixed_live_ranges() {
     return fixed_live_ranges_;
   }
+  ZoneVector<TopLevelLiveRange*>& fixed_float_live_ranges() {
+    return fixed_float_live_ranges_;
+  }
+  const ZoneVector<TopLevelLiveRange*>& fixed_float_live_ranges() const {
+    return fixed_float_live_ranges_;
+  }
   ZoneVector<TopLevelLiveRange*>& fixed_double_live_ranges() {
     return fixed_double_live_ranges_;
   }
   const ZoneVector<TopLevelLiveRange*>& fixed_double_live_ranges() const {
     return fixed_double_live_ranges_;
   }
+  ZoneVector<TopLevelLiveRange*>& fixed_simd128_live_ranges() {
+    return fixed_simd128_live_ranges_;
+  }
+  const ZoneVector<TopLevelLiveRange*>& fixed_simd128_live_ranges() const {
+    return fixed_simd128_live_ranges_;
+  }
   ZoneVector<BitVector*>& live_in_sets() { return live_in_sets_; }
   ZoneVector<BitVector*>& live_out_sets() { return live_out_sets_; }
   ZoneVector<SpillRange*>& spill_ranges() { return spill_ranges_; }
   DelayedReferences& delayed_references() { return delayed_references_; }
   InstructionSequence* code() const { return code_; }
   // This zone is for data structures only needed during register allocation
   // phases.
   Zone* allocation_zone() const { return allocation_zone_; }
   // This zone is for InstructionOperands and moves that live beyond register
   // allocation.
@@ skipping 41 matching lines @@
   Zone* const allocation_zone_;
   Frame* const frame_;
   InstructionSequence* const code_;
   const char* const debug_name_;
   const RegisterConfiguration* const config_;
   PhiMap phi_map_;
   ZoneVector<BitVector*> live_in_sets_;
   ZoneVector<BitVector*> live_out_sets_;
   ZoneVector<TopLevelLiveRange*> live_ranges_;
   ZoneVector<TopLevelLiveRange*> fixed_live_ranges_;
+  ZoneVector<TopLevelLiveRange*> fixed_float_live_ranges_;
   ZoneVector<TopLevelLiveRange*> fixed_double_live_ranges_;
+  ZoneVector<TopLevelLiveRange*> fixed_simd128_live_ranges_;
   ZoneVector<SpillRange*> spill_ranges_;
   DelayedReferences delayed_references_;
   BitVector* assigned_registers_;
   BitVector* assigned_double_registers_;
   int virtual_register_count_;
   RangesWithPreassignedSlots preassigned_slot_ranges_;
 
   DISALLOW_COPY_AND_ASSIGN(RegisterAllocationData);
 };
 
@@ skipping 328 matching lines @@
   RegisterAllocationData* const data_;
 
   DISALLOW_COPY_AND_ASSIGN(LiveRangeConnector);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_REGISTER_ALLOCATOR_H_