[turbofan] Support for %_DoubleHi, %_DoubleLo and %_ConstructDouble.

src/compiler/x64/code-generator-x64.cc

 // Copyright 2013 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.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/scopes.h"
 #include "src/x64/assembler-x64.h"
 #include "src/x64/macro-assembler-x64.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 #define __ masm()->
 
 
+#define kScratchDoubleReg xmm0
+
+
 // Adds X64 specific methods for decoding operands.
 class X64OperandConverter : public InstructionOperandConverter {
  public:
   X64OperandConverter(CodeGenerator* gen, Instruction* instr)
       : InstructionOperandConverter(gen, instr) {}
 
   Immediate InputImmediate(size_t index) {
     return ToImmediate(instr_->InputAt(index));
   }
 
-  Operand InputOperand(size_t index) {
-    return ToOperand(instr_->InputAt(index));
+  Operand InputOperand(size_t index, int extra = 0) {
+    return ToOperand(instr_->InputAt(index), extra);
   }
 
   Operand OutputOperand() { return ToOperand(instr_->Output()); }
 
   Immediate ToImmediate(InstructionOperand* operand) {
     return Immediate(ToConstant(operand).ToInt32());
   }
 
   Operand ToOperand(InstructionOperand* op, int extra = 0) {
     DCHECK(op->IsStackSlot() || op->IsDoubleStackSlot());
@@ skipping 758 matching lines @@
       }
       break;
     case kSSEUint32ToFloat64:
       if (instr->InputAt(0)->IsRegister()) {
         __ movl(kScratchRegister, i.InputRegister(0));
       } else {
         __ movl(kScratchRegister, i.InputOperand(0));
       }
       __ cvtqsi2sd(i.OutputDoubleRegister(), kScratchRegister);
       break;
+    case kSSEFloat64ExtractLowWord32:
+      if (instr->InputAt(0)->IsDoubleStackSlot()) {
+        __ movl(i.OutputRegister(), i.InputOperand(0));
+      } else {
+        __ movd(i.OutputRegister(), i.InputDoubleRegister(0));
+      }
+      break;
+    case kSSEFloat64ExtractHighWord32:
+      if (instr->InputAt(0)->IsDoubleStackSlot()) {
+        __ movl(i.OutputRegister(), i.InputOperand(0, kDoubleSize / 2));
+      } else {
+        __ Pextrd(i.OutputRegister(), i.InputDoubleRegister(0), 1);
+      }
+      break;
+    case kSSEFloat64InsertLowWord32:
+      if (instr->InputAt(1)->IsRegister()) {
+        __ Pinsrd(i.OutputDoubleRegister(), i.InputRegister(1), 0);
+      } else {
+        __ Pinsrd(i.OutputDoubleRegister(), i.InputOperand(1), 0);
+      }
+      break;
+    case kSSEFloat64InsertHighWord32:
+      if (instr->InputAt(1)->IsRegister()) {
+        __ Pinsrd(i.OutputDoubleRegister(), i.InputRegister(1), 1);
+      } else {
+        __ Pinsrd(i.OutputDoubleRegister(), i.InputOperand(1), 1);
+      }
+      break;
+    case kSSEFloat64LoadLowWord32:
+      if (instr->InputAt(0)->IsRegister()) {
+        __ movd(i.OutputDoubleRegister(), i.InputRegister(0));
+      } else {
+        __ movd(i.OutputDoubleRegister(), i.InputOperand(0));
+      }
+      break;
     case kAVXFloat64Add:
       ASSEMBLE_AVX_DOUBLE_BINOP(vaddsd);
       break;
     case kAVXFloat64Sub:
       ASSEMBLE_AVX_DOUBLE_BINOP(vsubsd);
       break;
     case kAVXFloat64Mul:
       ASSEMBLE_AVX_DOUBLE_BINOP(vmulsd);
       break;
     case kAVXFloat64Div:
@@ skipping 186 matching lines @@
     case kCheckedStoreWord32:
       ASSEMBLE_CHECKED_STORE_INTEGER(movl);
       break;
     case kCheckedStoreFloat32:
       ASSEMBLE_CHECKED_STORE_FLOAT(movss);
       break;
     case kCheckedStoreFloat64:
       ASSEMBLE_CHECKED_STORE_FLOAT(movsd);
       break;
   }
-}
+}  // NOLINT(readability/fn_size)
 
 
 // Assembles branches after this instruction.
 void CodeGenerator::AssembleArchBranch(Instruction* instr, BranchInfo* branch) {
   X64OperandConverter i(this, instr);
   Label::Distance flabel_distance =
       branch->fallthru ? Label::kNear : Label::kFar;
   Label* tlabel = branch->true_label;
   Label* flabel = branch->false_label;
   switch (branch->condition) {
@@ skipping 423 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace compiler
 }  // namespace v8