[SimplifyCFG][NFC] Show that we don't consider the cost when merging cond stores
[SimplifyCFG][NFC] Show that we don't consider the cost when merging cond stores

We count instruction count in each BB's separately, not their cost.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@371297 91177308-0d34-0410-b5e6-96231b3b80d8

GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm