Simplify AssemblerPositionsRecorder.

src/s390/code-stubs-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/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1017 matching lines @@
   // we can store the address on the stack to be able to find it again and
   // we never have to restore it, because it will not change.
   {
     Label return_label;
     __ larl(r14, &return_label);  // Generate the return addr of call later.
     __ StoreP(r14, MemOperand(sp, kStackFrameRASlot * kPointerSize));
 
     // zLinux ABI requires caller's frame to have sufficient space for callee
     // preserved regsiter save area.
     // __ lay(sp, MemOperand(sp, -kCalleeRegisterSaveAreaSize));
-    __ positions_recorder()->WriteRecordedPositions();
     __ b(target);
     __ bind(&return_label);
     // __ la(sp, MemOperand(sp, +kCalleeRegisterSaveAreaSize));
   }
 
   // If return value is on the stack, pop it to registers.
   if (needs_return_buffer) {
     if (result_size() > 2) __ LoadP(r4, MemOperand(r2, 2 * kPointerSize));
     __ LoadP(r3, MemOperand(r2, kPointerSize));
     __ LoadP(r2, MemOperand(r2));
@@ skipping 2038 matching lines @@
     __ Pop(r3, r2);
   }
 
   __ JumpToJSEntry(r4);
 }
 
 // This stub is paired with DirectCEntryStub::GenerateCall
 void DirectCEntryStub::Generate(MacroAssembler* masm) {
   __ CleanseP(r14);
 
-  // Statement positions are expected to be recorded when the target
-  // address is loaded.
-  __ positions_recorder()->WriteRecordedPositions();
-
   __ b(ip);  // Callee will return to R14 directly
 }
 
 void DirectCEntryStub::GenerateCall(MacroAssembler* masm, Register target) {
 #if ABI_USES_FUNCTION_DESCRIPTORS && !defined(USE_SIMULATOR)
   // Native AIX/S390X Linux use a function descriptor.
   __ LoadP(ToRegister(ABI_TOC_REGISTER), MemOperand(target, kPointerSize));
   __ LoadP(target, MemOperand(target, 0));  // Instruction address
 #else
   // ip needs to be set for DirectCEentryStub::Generate, and also
@@ skipping 2390 matching lines @@
   CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390