X87: [x64][ia32] Add Support for the Float64Neg and Float32Neg turbofan operators.

src/compiler/x87/code-generator-x87.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/ast/scopes.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 1161 matching lines @@
     case kX87Float32Abs: {
       if (FLAG_debug_code && FLAG_enable_slow_asserts) {
         __ VerifyX87StackDepth(1);
       }
       __ fstp(0);
       __ fld_s(MemOperand(esp, 0));
       __ fabs();
       __ lea(esp, Operand(esp, kFloatSize));
       break;
     }
+    case kX87Float32Neg: {
+      if (FLAG_debug_code && FLAG_enable_slow_asserts) {
+        __ VerifyX87StackDepth(1);
+      }
+      __ fstp(0);
+      __ fld_s(MemOperand(esp, 0));
+      __ fchs();
+      __ lea(esp, Operand(esp, kFloatSize));
+      break;
+    }
     case kX87Float32Round: {
       RoundingMode mode =
           static_cast<RoundingMode>(MiscField::decode(instr->opcode()));
       // Set the correct round mode in x87 control register
       __ X87SetRC((mode << 10));
 
       if (!instr->InputAt(0)->IsFPRegister()) {
         InstructionOperand* input = instr->InputAt(0);
         USE(input);
         DCHECK(input->IsFPStackSlot());
@@ skipping 154 matching lines @@
     case kX87Float64Abs: {
       if (FLAG_debug_code && FLAG_enable_slow_asserts) {
         __ VerifyX87StackDepth(1);
       }
       __ fstp(0);
       __ fld_d(MemOperand(esp, 0));
       __ fabs();
       __ lea(esp, Operand(esp, kDoubleSize));
       break;
     }
+    case kX87Float64Neg: {
+      if (FLAG_debug_code && FLAG_enable_slow_asserts) {
+        __ VerifyX87StackDepth(1);
+      }
+      __ fstp(0);
+      __ fld_d(MemOperand(esp, 0));
+      __ fchs();
+      __ lea(esp, Operand(esp, kDoubleSize));
+      break;
+    }
     case kX87Int32ToFloat32: {
       InstructionOperand* input = instr->InputAt(0);
       DCHECK(input->IsRegister() || input->IsStackSlot());
       if (FLAG_debug_code && FLAG_enable_slow_asserts) {
         __ VerifyX87StackDepth(1);
       }
       __ fstp(0);
       if (input->IsRegister()) {
         Register input_reg = i.InputRegister(0);
         __ push(input_reg);
@@ skipping 1250 matching lines @@
     int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
     __ Nop(padding_size);
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8