[dev.ssa] cmd/compile: more combining of ops into instructions
Mostly indexed loads. A few more LEA cases.
Change-Id: Idc1d447ed0dd6e906cd48e70307a95e77f61cf5f
Reviewed-on: https://go-review.googlesource.com/19172
Reviewed-by: Todd Neal <todd@tneal.org>
Run-TryBot: Keith Randall <khr@golang.org>
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 59993c2..8ae02bd 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -4061,7 +4061,7 @@
p.From.Index = regnum(v.Args[1])
p.To.Type = obj.TYPE_REG
p.To.Reg = regnum(v)
- case ssa.OpAMD64MOVSSloadidx4:
+ case ssa.OpAMD64MOVLloadidx4, ssa.OpAMD64MOVSSloadidx4:
p := Prog(v.Op.Asm())
p.From.Type = obj.TYPE_MEM
p.From.Reg = regnum(v.Args[0])
@@ -4070,6 +4070,24 @@
p.From.Index = regnum(v.Args[1])
p.To.Type = obj.TYPE_REG
p.To.Reg = regnum(v)
+ case ssa.OpAMD64MOVWloadidx2:
+ p := Prog(v.Op.Asm())
+ p.From.Type = obj.TYPE_MEM
+ p.From.Reg = regnum(v.Args[0])
+ addAux(&p.From, v)
+ p.From.Scale = 2
+ p.From.Index = regnum(v.Args[1])
+ p.To.Type = obj.TYPE_REG
+ p.To.Reg = regnum(v)
+ case ssa.OpAMD64MOVBloadidx1:
+ p := Prog(v.Op.Asm())
+ p.From.Type = obj.TYPE_MEM
+ p.From.Reg = regnum(v.Args[0])
+ addAux(&p.From, v)
+ p.From.Scale = 1
+ p.From.Index = regnum(v.Args[1])
+ p.To.Type = obj.TYPE_REG
+ p.To.Reg = regnum(v)
case ssa.OpAMD64MOVQstore, ssa.OpAMD64MOVSSstore, ssa.OpAMD64MOVSDstore, ssa.OpAMD64MOVLstore, ssa.OpAMD64MOVWstore, ssa.OpAMD64MOVBstore, ssa.OpAMD64MOVOstore:
p := Prog(v.Op.Asm())
p.From.Type = obj.TYPE_REG
