not-int can also take non-int (byte and short) instructions.

So we should use the result-type instead if the input type
for knowning what instruction to use.

Bug: 19454010
Change-Id: I88782ad27ae8c8e1b7868afede5057d26f14685a
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index 1101569..7b35cfd 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -2575,7 +2575,7 @@
   Location in = locations->InAt(0);
   Location out = locations->Out();
   DCHECK(in.Equals(out));
-  switch (not_->InputAt(0)->GetType()) {
+  switch (not_->GetResultType()) {
     case Primitive::kPrimInt:
       __ notl(out.AsRegister<Register>());
       break;