X87: [turbofan] Support unboxed float and double stack parameters and add tests.

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/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/scopes.h"
@@ skipping 1086 matching lines @@
           __ shl(i.OutputRegister(), 3);
         } else {
           __ lea(i.OutputRegister(), i.MemoryOperand());
         }
       } else {
         __ lea(i.OutputRegister(), i.MemoryOperand());
       }
       break;
     }
     case kX87Push:
-      if (HasImmediateInput(instr, 0)) {
+      if (instr->InputAt(0)->IsDoubleRegister()) {
+        auto allocated = AllocatedOperand::cast(*instr->InputAt(0));
+        if (allocated.machine_type() == kRepFloat32) {
+          __ sub(esp, Immediate(kDoubleSize));
+          __ fst_s(Operand(esp, 0));
+        } else {
+          DCHECK(allocated.machine_type() == kRepFloat64);
+          __ sub(esp, Immediate(kDoubleSize));
+          __ fst_d(Operand(esp, 0));
+        }
+      } else if (instr->InputAt(0)->IsDoubleStackSlot()) {
+        auto allocated = AllocatedOperand::cast(*instr->InputAt(0));
+        if (allocated.machine_type() == kRepFloat32) {
+          __ sub(esp, Immediate(kDoubleSize));
+          __ fld_s(i.InputOperand(0));
+          __ fstp_s(MemOperand(esp, 0));
+        } else {
+          DCHECK(allocated.machine_type() == kRepFloat64);
+          __ sub(esp, Immediate(kDoubleSize));
+          __ fld_d(i.InputOperand(0));
+          __ fstp_d(MemOperand(esp, 0));
+        }
+      } else if (HasImmediateInput(instr, 0)) {
         __ push(i.InputImmediate(0));
       } else {
         __ push(i.InputOperand(0));
       }
       break;
     case kX87Poke: {
       int const slot = MiscField::decode(instr->opcode());
       if (HasImmediateInput(instr, 0)) {
         __ mov(Operand(esp, slot * kPointerSize), i.InputImmediate(0));
       } else {
@@ skipping 717 matching lines @@
       __ Nop(padding_size);
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8