[CSKY] Optimize subtraction with SUBI32/SUBI16
authorBen Shi <2283975856@qq.com>
Tue, 20 Jun 2023 10:00:56 +0000 (18:00 +0800)
committerBen Shi <2283975856@qq.com>
Fri, 30 Jun 2023 03:33:20 +0000 (11:33 +0800)
commitf40682a930d6812c930f90495933f9e3dfb9fcd3
tree4da4ad8d29fb10e3378cf089d0bd4ff6a2875d97
parent742939f128cbf9c979e3d30e4e720825f84e214c
[CSKY] Optimize subtraction with SUBI32/SUBI16

Reviewed By: zixuan-wu

Differential Revision: https://reviews.llvm.org/D153326
llvm/lib/Target/CSKY/CSKYInstrInfo.td
llvm/lib/Target/CSKY/CSKYInstrInfo16Instr.td
llvm/test/CodeGen/CSKY/base-i.ll