Do not allow large object allocation from optimized code.

src/x87/lithium-codegen-x87.cc

Index: src/x87/lithium-codegen-x87.cc
diff --git a/src/x87/lithium-codegen-x87.cc b/src/x87/lithium-codegen-x87.cc
index 67aa295fca13e5ea0cafd432485b43bfee9a3cfc..6b1e946ddb1ee22eb697f791b38640a489ca1079 100644
--- a/src/x87/lithium-codegen-x87.cc
+++ b/src/x87/lithium-codegen-x87.cc
@@ -5799,11 +5799,8 @@ void LCodeGen::DoAllocate(LAllocate* instr) {
 
   if (instr->size()->IsConstantOperand()) {
     int32_t size = ToInteger32(LConstantOperand::cast(instr->size()));
-    if (size <= Page::kMaxRegularHeapObjectSize) {
-      __ Allocate(size, result, temp, no_reg, deferred->entry(), flags);
-    } else {
-      __ jmp(deferred->entry());
-    }
+    CHECK(size <= Page::kMaxRegularHeapObjectSize);
+    __ Allocate(size, result, temp, no_reg, deferred->entry(), flags);
   } else {
     Register size = ToRegister(instr->size());
     __ Allocate(size, result, temp, no_reg, deferred->entry(), flags);