[PATCH] Select Elimination in InstCombine

[hfinkel at anl.gov]

================
Comment at: lib/Transforms/InstCombine/InstCombineCompares.cpp:2452
@@ +2451,3 @@
+    auto *Usr = cast<Instruction>(U);
+    if (Usr != UI && !DT->dominates(DB, Usr->getParent()))
+      return false;
----------------
If you mean for this to rule-out any other uses in the same block as the definition (I don't see anything else that might enforce that there is only one use in the parent block), should this be a call to properlyDominates?

http://reviews.llvm.org/D5258