[TargetTransformInfo] Handle intrinsic call in getInstructionLatency()

Usually an intrinsic is a simple target instruction, it should have a small latency. A real function call has much larger latency. So handle the intrinsic call in function getInstructionLatency().

Differential Revision: https://reviews.llvm.org/D38104



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314003 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed