| Current Path : /usr/local/go/src/cmd/compile/internal/ssa/_gen/ |
| Current File : //usr/local/go/src/cmd/compile/internal/ssa/_gen/AMD64latelower.rules |
// Copyright 2022 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. // Prefer SARX/SHLX/SHRX instruction because it has less register restriction on the shift input. (SAR(Q|L) x y) && buildcfg.GOAMD64 >= 3 => (SARX(Q|L) x y) (SHL(Q|L) x y) && buildcfg.GOAMD64 >= 3 => (SHLX(Q|L) x y) (SHR(Q|L) x y) && buildcfg.GOAMD64 >= 3 => (SHRX(Q|L) x y)