This is a simple patch to make sure fast math flags are propagated through to
the newly created symmetric operations, which can help with later
simplifications.
Differential Revision: https://reviews.llvm.org/D146409
Adds the Complex Deinterleaving Pass implementing support for complex numbers in a target-independent manner, deferring to the TargetLowering for the given target to create a target-specific intrinsic.
Differential Revision: https://reviews.llvm.org/D114174
