PPC/s390: [turbofan] Advance bytecode offset after lazy deopt.

src/builtins/ppc/builtins-ppc.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_PPC
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 1306 matching lines @@
   __ TailCallStub(&stub);
 
   __ bind(&stack_overflow);
   {
     __ TailCallRuntime(Runtime::kThrowStackOverflow);
     // Unreachable code.
     __ bkpt(0);
   }
 }
 
-void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) {
+static void Generate_InterpreterEnterBytecode(MacroAssembler* masm) {
   // Set the return address to the correct point in the interpreter entry
   // trampoline.
   Smi* interpreter_entry_return_pc_offset(
       masm->isolate()->heap()->interpreter_entry_return_pc_offset());
   DCHECK_NE(interpreter_entry_return_pc_offset, Smi::kZero);
   __ Move(r5, masm->isolate()->builtins()->InterpreterEntryTrampoline());
   __ addi(r0, r5, Operand(interpreter_entry_return_pc_offset->value() +
                           Code::kHeaderSize - kHeapObjectTag));
   __ mtlr(r0);
 
@@ skipping 21 matching lines @@
   __ SmiUntag(kInterpreterBytecodeOffsetRegister);
 
   // Dispatch to the target bytecode.
   __ lbzx(r4, MemOperand(kInterpreterBytecodeArrayRegister,
                          kInterpreterBytecodeOffsetRegister));
   __ ShiftLeftImm(ip, r4, Operand(kPointerSizeLog2));
   __ LoadPX(ip, MemOperand(kInterpreterDispatchTableRegister, ip));
   __ Jump(ip);
 }
 
+void Builtins::Generate_InterpreterEnterBytecodeAdvance(MacroAssembler* masm) {
+  // Advance the current bytecode offset stored within the given interpreter
+  // stack frame. This simulates what all bytecode handlers do upon completion
+  // of the underlying operation.
+  __ LoadP(r4, MemOperand(fp, InterpreterFrameConstants::kBytecodeArrayFromFp));
+  __ LoadP(r5,
+           MemOperand(fp, InterpreterFrameConstants::kBytecodeOffsetFromFp));
+  __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    __ Push(kInterpreterAccumulatorRegister, r4, r5);
+    __ CallRuntime(Runtime::kInterpreterAdvanceBytecodeOffset);
+    __ Move(r5, r3);  // Result is the new bytecode offset.
+    __ Pop(kInterpreterAccumulatorRegister);
+  }
+  __ StoreP(r5,
+            MemOperand(fp, InterpreterFrameConstants::kBytecodeOffsetFromFp));
+
+  Generate_InterpreterEnterBytecode(masm);
+}
+
+void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) {
+  Generate_InterpreterEnterBytecode(masm);
+}
+
 void Builtins::Generate_CompileLazy(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r3 : argument count (preserved for callee)
   //  -- r6 : new target (preserved for callee)
   //  -- r4 : target function (preserved for callee)
   // -----------------------------------
   // First lookup code, maybe we don't need to compile!
   Label gotta_call_runtime;
   Label try_shared;
   Label loop_top, loop_bottom;
@@ skipping 1597 matching lines @@
     __ CallRuntime(Runtime::kThrowStackOverflow);
     __ bkpt(0);
   }
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC