PPC/s390: [Ignition] Teach CompileLazy about interpreted functions.

src/builtins/s390/builtins-s390.cc

 // Copyright 2014 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.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1443 matching lines @@
   __ b(&gotta_call_runtime);
 
   __ bind(&try_shared);
   __ LoadP(entry,
            FieldMemOperand(closure, JSFunction::kSharedFunctionInfoOffset));
   // Is the shared function marked for tier up?
   __ LoadlB(temp, FieldMemOperand(
                       entry, SharedFunctionInfo::kMarkedForTierUpByteOffset));
   __ TestBit(temp, SharedFunctionInfo::kMarkedForTierUpBitWithinByte, r0);
   __ bne(&gotta_call_runtime);
-  // Is the full code valid?
+
+  // If SFI points to anything other than CompileLazy, install that.
   __ LoadP(entry, FieldMemOperand(entry, SharedFunctionInfo::kCodeOffset));
-  __ LoadlW(r7, FieldMemOperand(entry, Code::kFlagsOffset));
-  __ DecodeField<Code::KindField>(r7);
-  __ CmpP(r7, Operand(Code::BUILTIN));
+  __ mov(r7, Operand(masm->CodeObject()));
+  __ CmpP(entry, r7);
   __ beq(&gotta_call_runtime);
-  // Yes, install the full code.
+
+  // Install the SFI's code entry.
   __ AddP(entry, entry, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ StoreP(entry, FieldMemOperand(closure, JSFunction::kCodeEntryOffset), r0);
   __ RecordWriteCodeEntryField(closure, entry, r7);
   __ JumpToJSEntry(entry);
 
   __ bind(&gotta_call_runtime);
   GenerateTailCallToReturnedCode(masm, Runtime::kCompileLazy);
 }
 
 void Builtins::Generate_CompileBaseline(MacroAssembler* masm) {
@@ skipping 1503 matching lines @@
     __ bkpt(0);
   }
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390