tree 483b604f3a1d3bc6e4d9fc017609af0da6a53e63
parent a4fa9008988985f9cf01712a99ddd923aea278a0
author Michael Gottesman <mgottesman@apple.com> 1358043759 +0000
committer Michael Gottesman <mgottesman@apple.com> 1358043759 +0000

Added builtins for multiprecision adds.

We lower all of these intrinsics into a 2x chained usage of
uadd.with.overflow.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172341 91177308-0d34-0410-b5e6-96231b3b80d8