tree 94fc1996d7c16b3d7e49804f5d427c5da55c838f
parent e862164938ea5de32783a86aa5095de77e671082
author Craig Topper <craig.topper@intel.com> 1546892025 +0000
committer Craig Topper <craig.topper@intel.com> 1546892025 +0000

[X86][AutoUpgrade] Make some tweaks to reduce the number of nested if/else in the intrinsic upgrade code to avoid an MSVC compiler limit.

MSVC has a nesting limit of around 110-130. An if/else if/else if counts against this next level. The autoupgrade code consists a long chain of these checking matches against strings.

This commit moves some code to a helper function to move out a large if/else chain that was inside of one of the blocks into a separate function. There are more of these we could move or we could change some to lookup tables.

I've also merged together a few similar blocks in the outer chain. This should buy us some margin for a little bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@350564 91177308-0d34-0410-b5e6-96231b3b80d8