[compiler] Mark shared functions for optimization

src/builtins/s390/builtins-s390.cc

Index: src/builtins/s390/builtins-s390.cc
diff --git a/src/builtins/s390/builtins-s390.cc b/src/builtins/s390/builtins-s390.cc
index a2eab5b58eca91a630aaccd98491e1fe4fc378a5..5e33695925ac056e7669a77013d3ad0943383f08 100644
--- a/src/builtins/s390/builtins-s390.cc
+++ b/src/builtins/s390/builtins-s390.cc
@@ -1503,9 +1503,16 @@ void Builtins::Generate_CompileLazy(MacroAssembler* masm) {
   __ b(&gotta_call_runtime);
 
   __ bind(&try_shared);
-  // Is the full code valid?
   __ LoadP(entry,
            FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
+  // Is the shared function marked for optimization?
+  __ LoadlB(temp, FieldMemOperand(
+                      entry,
+                      SharedFunctionInfo::kWasMarkedForOptimizationByteOffset));
+  __ TestBit(temp, SharedFunctionInfo::kWasMarkedForOptimizationBitWithinByte,
+             r0);
+  __ bne(&gotta_call_runtime);
+  // Is the full code valid?
   __ LoadP(entry, FieldMemOperand(entry, SharedFunctionInfo::kCodeOffset));
   __ LoadlW(r7, FieldMemOperand(entry, Code::kFlagsOffset));
   __ DecodeField<Code::KindField>(r7);