[X86][IR] Move the autoupgrading of store intrinsics out of the main nested if/else chain. This should buy a little more time against the MSVC limit mentioned in PR31034.
[X86][IR] Move the autoupgrading of store intrinsics out of the main nested if/else chain. This should buy a little more time against the MSVC limit mentioned in PR31034.

The handlers for stores all return at the end of their block so they can be picked off early.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@289339 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,apple/swift-llvm,apple/swift-llvm