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[dev.ssa] cmd/compile: implement LEAQ2/LEAQ4/LEAQ8 opcodes

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Change-Id: I8da76b9a4c5c80e8515e69e105d6349fe3ad9281
Reviewed-on: https://go-review.googlesource.com/12611
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
This commit is contained in:
Todd Neal 2015-07-23 20:01:40 -05:00
parent 851ceebceb
commit d90e0481bf
1 changed files with 11 additions and 2 deletions
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13
src/cmd/compile/internal/gc/ssa.go
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@ -1538,11 +1538,20 @@ func genValue(v *ssa.Value) {
p.From.Type = obj.TYPE_REG
p.To.Type = obj.TYPE_REG
p.To.Reg = r
case ssa.OpAMD64LEAQ1:
case ssa.OpAMD64LEAQ1, ssa.OpAMD64LEAQ2, ssa.OpAMD64LEAQ4, ssa.OpAMD64LEAQ8:
p := Prog(x86.ALEAQ)
p.From.Type = obj.TYPE_MEM
p.From.Reg = regnum(v.Args[0])
p.From.Scale = 1
switch v.Op {
case ssa.OpAMD64LEAQ1:
p.From.Scale = 1
case ssa.OpAMD64LEAQ2:
p.From.Scale = 2
case ssa.OpAMD64LEAQ4:
p.From.Scale = 4
case ssa.OpAMD64LEAQ8:
p.From.Scale = 8
}
p.From.Index = regnum(v.Args[1])
addAux(&p.From, v)
p.To.Type = obj.TYPE_REG