[calls] Consistent call protocol for calls.

src/arm64/macro-assembler-arm64.cc

Index: src/arm64/macro-assembler-arm64.cc
diff --git a/src/arm64/macro-assembler-arm64.cc b/src/arm64/macro-assembler-arm64.cc
index 75814e83a866396c66b89cb601fa2a02e6bf16d1..b4870df9e87a24a770f4811c74d5dfc7ec543d12 100644
--- a/src/arm64/macro-assembler-arm64.cc
+++ b/src/arm64/macro-assembler-arm64.cc
@@ -2571,11 +2571,11 @@ void MacroAssembler::InvokePrologue(const ParameterCount& expected,
 
   if (expected.is_immediate()) {
     DCHECK(actual.is_immediate());
+    Mov(x0, actual.immediate());
     if (expected.immediate() == actual.immediate()) {
       definitely_matches = true;
 
     } else {
-      Mov(x0, actual.immediate());
       if (expected.immediate() ==
           SharedFunctionInfo::kDontAdaptArgumentsSentinel) {
         // Don't worry about adapting arguments for builtins that
@@ -2593,11 +2593,10 @@ void MacroAssembler::InvokePrologue(const ParameterCount& expected,
   } else {  // expected is a register.
     Operand actual_op = actual.is_immediate() ? Operand(actual.immediate())
                                               : Operand(actual.reg());
+    Mov(x0, actual_op);
     // If actual == expected perform a regular invocation.
     Cmp(expected.reg(), actual_op);
     B(eq, &regular_invoke);
-    // Otherwise set up x0 for the argument adaptor.
-    Mov(x0, actual_op);
   }
 
   // If the argument counts may mismatch, generate a call to the argument