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[dev.ssa] cmd/compile: handle non-in-place NEG and NOT

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This fixes the crypto/subtle tests.

Change-Id: Ie6e721eec3481f67f13de1bfbd7988e227793148
Reviewed-on: https://go-review.googlesource.com/13000
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2015-07-30 17:15:16 -07:00
parent 85e0329fbc
commit 93c354b6cc
1 changed files with 10 additions and 1 deletions
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11
src/cmd/compile/internal/gc/ssa.go
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@ -2093,9 +2093,18 @@ func genValue(v *ssa.Value) {
p.To.Reg = regnum(v.Args[0])
case ssa.OpAMD64NEGQ, ssa.OpAMD64NEGL, ssa.OpAMD64NEGW, ssa.OpAMD64NEGB,
ssa.OpAMD64NOTQ, ssa.OpAMD64NOTL, ssa.OpAMD64NOTW, ssa.OpAMD64NOTB:
x := regnum(v.Args[0])
r := regnum(v)
if x != r {
p := Prog(regMoveAMD64(v.Type.Size()))
p.From.Type = obj.TYPE_REG
p.From.Reg = x
p.To.Type = obj.TYPE_REG
p.To.Reg = r
}
p := Prog(v.Op.Asm())
p.To.Type = obj.TYPE_REG
p.To.Reg = regnum(v.Args[0])
p.To.Reg = r
case ssa.OpSP, ssa.OpSB:
// nothing to do
case ssa.OpAMD64SETEQ, ssa.OpAMD64SETNE,