Expand `TruncInstCombine` to handle loops by adding `phi` nodes to expression graph. Reviewed by: RKSimon, lebedev.ri (recommit of fixed f84d732f, reverted by 8ad6d5e after sanitizer breakage) Differential Revision: https://reviews.llvm.org/D109817
Expand `TruncInstCombine` to handle loops by adding `phi` nodes to expression graph. Reviewed by: RKSimon, lebedev.ri (recommit of fixed f84d732f, reverted by 8ad6d5e after sanitizer breakage) Differential Revision: https://reviews.llvm.org/D109817