Don't push eax/rax before calling Runtime_Abort

src/arm64/macro-assembler-arm64.cc

 // Copyright 2013 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.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "bootstrapper.h"
 #include "codegen.h"
@@ skipping 1531 matching lines @@
   // Get the code object and state.  Clear the context and frame pointer (0 was
   // saved in the handler).
   Register object = scratch1;
   Register state = scratch2;
   Pop(object, state, cp, fp);
 
   JumpToHandlerEntry(value, object, state, scratch3, scratch4);
 }
 
 
-void MacroAssembler::Throw(BailoutReason reason) {
-  Label throw_start;
-  Bind(&throw_start);
-#ifdef DEBUG
-  const char* msg = GetBailoutReason(reason);
-  RecordComment("Throw message: ");
-  RecordComment((msg != NULL) ? msg : "UNKNOWN");
-#endif
-
-  Mov(x0, Smi::FromInt(reason));
-  Push(x0);
-
-  // Disable stub call restrictions to always allow calls to throw.
-  if (!has_frame_) {
-    // We don't actually want to generate a pile of code for this, so just
-    // claim there is a stack frame, without generating one.
-    FrameScope scope(this, StackFrame::NONE);
-    CallRuntime(Runtime::kHiddenThrowMessage, 1);
-  } else {
-    CallRuntime(Runtime::kHiddenThrowMessage, 1);
-  }
-  // ThrowMessage should not return here.
-  Unreachable();
-}
-
-
-void MacroAssembler::ThrowIf(Condition cond, BailoutReason reason) {
-  Label ok;
-  B(InvertCondition(cond), &ok);
-  Throw(reason);
-  Bind(&ok);
-}
-
-
-void MacroAssembler::ThrowIfSmi(const Register& value, BailoutReason reason) {
-  Label ok;
-  JumpIfNotSmi(value, &ok);
-  Throw(reason);
-  Bind(&ok);
-}
-
-
 void MacroAssembler::SmiAbs(const Register& smi, Label* slow) {
   ASSERT(smi.Is64Bits());
   Abs(smi, smi, slow);
 }
 
 
 void MacroAssembler::AssertSmi(Register object, BailoutReason reason) {
   if (emit_debug_code()) {
     STATIC_ASSERT(kSmiTag == 0);
     Tst(object, kSmiTagMask);
@@ skipping 3653 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64