2 Commits

Author	SHA1	Message	Date
Philip Reames	7dbf2e7b57	Teach PeepholeOpt to eliminate redundant copy from constant physreg (e.g VLENB on RISCV) ... The existing redundant copy elimination required a virtual register source, but the same logic works for any physreg where we don't have to worry about clobbers. On RISCV, this helps eliminate redundant CSR reads from VLENB. Differential Revision: https://reviews.llvm.org/D125564	2022-05-16 16:38:30 -07:00
Philip Reames	0513502a0a	[RISCV] Precommit tests showing missed vlenb optimizations	2022-05-13 09:43:11 -07:00