Generate StoreGlobal stubs with Hydrogen

src/ia32/lithium-gap-resolver-ia32.cc

 // 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
@@ skipping 295 matching lines @@
     LConstantOperand* constant_source = LConstantOperand::cast(source);
     if (destination->IsRegister()) {
       Register dst = cgen_->ToRegister(destination);
       if (cgen_->IsSmi(constant_source)) {
         __ Set(dst, cgen_->ToSmiImmediate(constant_source));
       } else if (cgen_->IsInteger32(constant_source)) {
         __ Set(dst, cgen_->ToInteger32Immediate(constant_source));
       } else {
         __ LoadObject(dst, cgen_->ToHandle(constant_source));
       }
+    } else if (destination->IsDoubleRegister()) {
+      double v = cgen_->ToDouble(constant_source);
+      uint64_t int_val = BitCast<uint64_t, double>(v);
+      int32_t lower = static_cast<int32_t>(int_val);
+      int32_t upper = static_cast<int32_t>(int_val >> kBitsPerInt);
+      if (CpuFeatures::IsSupported(SSE2)) {
+        CpuFeatureScope scope(cgen_->masm(), SSE2);
+        XMMRegister dst = cgen_->ToDoubleRegister(destination);
+        if (int_val == 0) {
+          __ xorps(dst, dst);
+        } else {
+          __ push(Immediate(upper));
+          __ push(Immediate(lower));
+          __ movdbl(dst, Operand(esp, 0));
+          __ add(esp, Immediate(kDoubleSize));
+        }
+      } else {
+        __ push(Immediate(upper));
+        __ push(Immediate(lower));
+        if (cgen_->X87StackNonEmpty()) {
+          cgen_->PopX87();
+        }
+        cgen_->PushX87DoubleOperand(MemOperand(esp, 0));
+        __ add(esp, Immediate(kDoubleSize));
+      }
     } else {
       ASSERT(destination->IsStackSlot());
       Operand dst = cgen_->ToOperand(destination);
       if (cgen_->IsSmi(constant_source)) {
         __ Set(dst, cgen_->ToSmiImmediate(constant_source));
       } else if (cgen_->IsInteger32(constant_source)) {
         __ Set(dst, cgen_->ToInteger32Immediate(constant_source));
       } else {
         Register tmp = EnsureTempRegister();
         __ LoadObject(tmp, cgen_->ToHandle(constant_source));
@@ skipping 193 matching lines @@
   } else if (destination->IsRegister()) {
     source_uses_[destination->index()] = CountSourceUses(destination);
   }
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32