HAllocate should never generate allocation code if the requested size does not fit into page. Regre…

src/a64/lithium-codegen-a64.cc

Index: src/a64/lithium-codegen-a64.cc
diff --git a/src/a64/lithium-codegen-a64.cc b/src/a64/lithium-codegen-a64.cc
index 462db001a5d40be2b528b40d11ee52870c3a9b0b..2bad671197fec3743a3ece7c0d1815a2a90a55d1 100644
--- a/src/a64/lithium-codegen-a64.cc
+++ b/src/a64/lithium-codegen-a64.cc
@@ -1486,7 +1486,11 @@ void LCodeGen::DoAllocate(LAllocate* instr) {
 
   if (instr->size()->IsConstantOperand()) {
     int32_t size = ToInteger32(LConstantOperand::cast(instr->size()));
-    __ Allocate(size, result, temp1, temp2, deferred->entry(), flags);
+    if (size <= Page::kMaxRegularHeapObjectSize) {
+      __ Allocate(size, result, temp1, temp2, deferred->entry(), flags);
+    } else {
+      __ B(deferred->entry());
+    }
   } else {
     Register size = ToRegister32(instr->size());
     __ Sxtw(size.X(), size);