tree b0f0065f9ceea710f9f382d74c678ab40f5be970
parent e5cd92a046c4e3f4ac111470790f3427afdfdc1b
author Sanjay Patel <spatel@rotateright.com> 1544140438 +0000
committer Sanjay Patel <spatel@rotateright.com> 1544140438 +0000

[DAGCombiner] don't bother saving a SDLoc for a node that's dead; NFCI

We shouldn't care about the debug location for a node that
we're creating, but attaching the root of the pattern should
be the best effort. (If this is not true, then we are doing
it wrong all over the SDAG).

This is no-functional-change-intended, and there are no
regression test diffs...and that's what I expected. But
there's a similar line above this diff, where those
assumptions apparently do not hold.