[DAGCombiner] Use tryFoldToZero to simplify some code and make it work correctly between LegalTypes and LegalOperations.
The original code avoided creating a zero vector after type legalization, but if we're after type legalization the type we have is legal. The real hazard we need to avoid is creating a build vector after op legalization. tryFoldToZero takes care of checking for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346119 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed