PPC: [stubs] Change CallICStub to utilize the ConvertReceiverMode.

Port d80fd48e

Original commit message:
    The CallICStub has call-site specific knowledge about the receiver,
    which we did not utilize; plus the CallICStub does in some case know
    whether it is about to [[Call]] a function or potentially some other
    callable. In the common case we actually know that the target is a
    function and so we can use the CallFunction builtin directly instead
    of redispatching in the Call builtin.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=chromium:555127, v8:4413
LOG=n

Review URL: https://codereview.chromium.org/1471823002

Cr-Commit-Position: refs/heads/master@{#32185}

src/ppc/code-stubs-ppc.cc

@@ -2619,7 +2619,7 @@ void CallICStub::Generate(MacroAssembler* masm) {
       FixedArray::OffsetOfElementAt(TypeFeedbackVector::kWithTypesIndex);
   const int generic_offset =
       FixedArray::OffsetOfElementAt(TypeFeedbackVector::kGenericCountIndex);
-  Label extra_checks_or_miss, call;
+  Label extra_checks_or_miss, call, call_function;
   int argc = arg_count();
   ParameterCount actual(argc);
 
@@ -2656,9 +2656,10 @@ void CallICStub::Generate(MacroAssembler* masm) {
   __ AddSmiLiteral(r6, r6, Smi::FromInt(CallICNexus::kCallCountIncrement), r0);
   __ StoreP(r6, FieldMemOperand(r9, count_offset), r0);
 
-  __ bind(&call);
+  __ bind(&call_function);
   __ mov(r3, Operand(argc));
-  __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
+  __ Jump(masm->isolate()->builtins()->CallFunction(convert_mode()),
+          RelocInfo::CODE_TARGET);
 
   __ bind(&extra_checks_or_miss);
   Label uninitialized, miss, not_allocation_site;
@@ -2699,7 +2700,11 @@ void CallICStub::Generate(MacroAssembler* masm) {
   __ LoadP(r7, FieldMemOperand(r5, generic_offset));
   __ AddSmiLiteral(r7, r7, Smi::FromInt(1), r0);
   __ StoreP(r7, FieldMemOperand(r5, generic_offset), r0);
-  __ b(&call);
+
+  __ bind(&call);
+  __ mov(r3, Operand(argc));
+  __ Jump(masm->isolate()->builtins()->Call(convert_mode()),
+          RelocInfo::CODE_TARGET);
 
   __ bind(&uninitialized);
 
@@ -2745,7 +2750,7 @@ void CallICStub::Generate(MacroAssembler* masm) {
     __ Pop(r4);
   }
 
-  __ b(&call);
+  __ b(&call_function);
 
   // We are here because tracing is on or we encountered a MISS case we can't
   // handle here.