| // Copyright 2019 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // This file contains rules used by flagalloc to split |
| // a flag-generating merged load op into separate load and op. |
| // Unlike with the other rules files, not all of these |
| // rules will be applied to all values. |
| // Rather, flagalloc will request for rules to be applied |
| // to a particular problematic value. |
| // These are often the exact inverse of rules in AMD64.rules, |
| // only with the conditions removed. |
| |
| (CMP(Q|L|W|B)load {sym} [off] ptr x mem) -> (CMP(Q|L|W|B) (MOV(Q|L|W|B)load {sym} [off] ptr mem) x) |
| |
| (CMP(Q|L|W|B)constload {sym} [vo] ptr mem) -> (CMP(Q|L|W|B)const (MOV(Q|L|W|B)load {sym} [offOnly(vo)] ptr mem) [valOnly(vo)]) |
| |
| (CMP(Q|L|W|B)loadidx1 {sym} [off] ptr idx x mem) -> (CMP(Q|L|W|B) (MOV(Q|L|W|B)loadidx1 {sym} [off] ptr idx mem) x) |
| (CMPQloadidx8 {sym} [off] ptr idx x mem) -> (CMPQ (MOVQloadidx8 {sym} [off] ptr idx mem) x) |
| (CMPLloadidx4 {sym} [off] ptr idx x mem) -> (CMPL (MOVLloadidx4 {sym} [off] ptr idx mem) x) |
| (CMPWloadidx2 {sym} [off] ptr idx x mem) -> (CMPW (MOVWloadidx2 {sym} [off] ptr idx mem) x) |
| |
| (CMP(Q|L|W|B)constloadidx1 {sym} [vo] ptr idx mem) -> (CMP(Q|L|W|B)const (MOV(Q|L|W|B)loadidx1 {sym} [offOnly(vo)] ptr idx mem) [valOnly(vo)]) |
| (CMPQconstloadidx8 {sym} [vo] ptr idx mem) -> (CMPQconst (MOVQloadidx8 {sym} [offOnly(vo)] ptr idx mem) [valOnly(vo)]) |
| (CMPLconstloadidx4 {sym} [vo] ptr idx mem) -> (CMPLconst (MOVLloadidx4 {sym} [offOnly(vo)] ptr idx mem) [valOnly(vo)]) |
| (CMPWconstloadidx2 {sym} [vo] ptr idx mem) -> (CMPWconst (MOVWloadidx2 {sym} [offOnly(vo)] ptr idx mem) [valOnly(vo)]) |
