[runtime] Kill %Arguments and %ArgumentsLength.

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 9794a416648d418a9474c4e804cd88fdd20c0464..0d139bb6620e9f5751108e7901a77910c70327ff 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -1489,59 +1489,6 @@ void LoadIndexedStringStub::Generate(MacroAssembler* masm) {
 }
 
 
-void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) {
-  // The displacement is the offset of the last parameter (if any)
-  // relative to the frame pointer.
-  const int kDisplacement =
-      StandardFrameConstants::kCallerSPOffset - kPointerSize;
-  DCHECK(r1.is(ArgumentsAccessReadDescriptor::index()));
-  DCHECK(r0.is(ArgumentsAccessReadDescriptor::parameter_count()));
-
-  // Check that the key is a smi.
-  Label slow;
-  __ JumpIfNotSmi(r1, &slow);
-
-  // Check if the calling frame is an arguments adaptor frame.
-  Label adaptor;
-  __ ldr(r2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
-  __ ldr(r3, MemOperand(r2, StandardFrameConstants::kContextOffset));
-  __ cmp(r3, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
-  __ b(eq, &adaptor);
-
-  // Check index against formal parameters count limit passed in
-  // through register r0. Use unsigned comparison to get negative
-  // check for free.
-  __ cmp(r1, r0);
-  __ b(hs, &slow);
-
-  // Read the argument from the stack and return it.
-  __ sub(r3, r0, r1);
-  __ add(r3, fp, Operand::PointerOffsetFromSmiKey(r3));
-  __ ldr(r0, MemOperand(r3, kDisplacement));
-  __ Jump(lr);
-
-  // Arguments adaptor case: Check index against actual arguments
-  // limit found in the arguments adaptor frame. Use unsigned
-  // comparison to get negative check for free.
-  __ bind(&adaptor);
-  __ ldr(r0, MemOperand(r2, ArgumentsAdaptorFrameConstants::kLengthOffset));
-  __ cmp(r1, r0);
-  __ b(cs, &slow);
-
-  // Read the argument from the adaptor frame and return it.
-  __ sub(r3, r0, r1);
-  __ add(r3, r2, Operand::PointerOffsetFromSmiKey(r3));
-  __ ldr(r0, MemOperand(r3, kDisplacement));
-  __ Jump(lr);
-
-  // Slow-case: Handle non-smi or out-of-bounds access to arguments
-  // by calling the runtime system.
-  __ bind(&slow);
-  __ push(r1);
-  __ TailCallRuntime(Runtime::kArguments);
-}
-
-
 void ArgumentsAccessStub::GenerateNewSloppySlow(MacroAssembler* masm) {
   // r1 : function
   // r2 : number of parameters (tagged)