X87: Reland: [Crankshaft] Always check for stubs marked to not require an eager frame.

src/code-stubs-hydrogen.cc

 // Copyright 2012 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/code-stubs.h"
 
 #include "src/bailout-reason.h"
 #include "src/crankshaft/hydrogen.h"
 #include "src/crankshaft/lithium.h"
 #include "src/field-index.h"
@@ skipping 452 matching lines @@
 HValue* CodeStubGraphBuilder<FastCloneShallowArrayStub>::BuildCodeStub() {
   Factory* factory = isolate()->factory();
   HValue* undefined = graph()->GetConstantUndefined();
   AllocationSiteMode alloc_site_mode = casted_stub()->allocation_site_mode();
   HValue* closure = GetParameter(0);
   HValue* literal_index = GetParameter(1);
 
   // TODO(turbofan): This codestub has regressed to need a frame on ia32 at some
   // point and wasn't caught since it wasn't built in the snapshot. We should
   // probably just replace with a TurboFan stub rather than fixing it.
-#if !V8_TARGET_ARCH_IA32
+#if !(V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87)
   // This stub is very performance sensitive, the generated code must be tuned
   // so that it doesn't build and eager frame.
   info()->MarkMustNotHaveEagerFrame();
 #endif
 
   HValue* literals_array = Add<HLoadNamedField>(
       closure, nullptr, HObjectAccess::ForLiteralsPointer());
 
   HInstruction* allocation_site = Add<HLoadKeyed>(
       literals_array, literal_index, nullptr, nullptr, FAST_ELEMENTS,
@@ skipping 1578 matching lines @@
 template<>
 HValue* CodeStubGraphBuilder<RegExpConstructResultStub>::BuildCodeStub() {
   // Determine the parameters.
   HValue* length = GetParameter(RegExpConstructResultStub::kLength);
   HValue* index = GetParameter(RegExpConstructResultStub::kIndex);
   HValue* input = GetParameter(RegExpConstructResultStub::kInput);
 
   // TODO(turbofan): This codestub has regressed to need a frame on ia32 at some
   // point and wasn't caught since it wasn't built in the snapshot. We should
   // probably just replace with a TurboFan stub rather than fixing it.
-#if !V8_TARGET_ARCH_IA32
+#if !(V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87)
   info()->MarkMustNotHaveEagerFrame();
 #endif
 
   return BuildRegExpConstructResult(length, index, input);
 }
 
 
 Handle<Code> RegExpConstructResultStub::GenerateCode() {
   return DoGenerateCode(this);
 }
@@ skipping 239 matching lines @@
   return Pop();
 }
 
 
 Handle<Code> KeyedLoadGenericStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 }  // namespace internal
 }  // namespace v8