https://github.com/tomershafir created https://github.com/llvm/llvm-project/pull/148429
Adds a target hook `shouldReMaterializeTrivialRegDef` that enables target to specify wether rematerialization of the copy is beneficial. This patch also provide an implementation for AArch64 based on the new subtarget hooks `canLowerToZeroCycleReg[Move|Zeroing]`. It prepares for a register coalescer optimization to prevent rematerialization of moves where the target supports ZCM. _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
