commit 954d5ada291a969b2933f43d9a8f53c28fcb0982
author Alexandru Moșoi <mosoi@google.com> Tue Jul 21 16:58:18 2015 +0200
committer Keith Randall <khr@golang.org> Wed Jul 22 22:00:17 2015 +0000
tree 4e16cf781f444ac180223498ff5e894b24256f7f
parent 8fb635815355fe74fa0df1f096e8169504bd4f3e

[dev.ssa] cmd/compile/internal/ssa/gen: implement OMINUS

Change-Id: Ibc645d6cf229ecc18af3549dd3750be9d7451abe
Reviewed-on: https://go-review.googlesource.com/12472
Reviewed-by: Keith Randall <khr@golang.org>

src/cmd/compile/internal/gc/ssa.go

diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 1b01894..a77e788 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -471,6 +471,15 @@
 	opAndType{OSUB, TINT64}:  ssa.OpSub64,
 	opAndType{OSUB, TUINT64}: ssa.OpSub64U,
 
+	opAndType{OMINUS, TINT8}:   ssa.OpNeg8,
+	opAndType{OMINUS, TUINT8}:  ssa.OpNeg8U,
+	opAndType{OMINUS, TINT16}:  ssa.OpNeg16,
+	opAndType{OMINUS, TUINT16}: ssa.OpNeg16U,
+	opAndType{OMINUS, TINT32}:  ssa.OpNeg32,
+	opAndType{OMINUS, TUINT32}: ssa.OpNeg32U,
+	opAndType{OMINUS, TINT64}:  ssa.OpNeg64,
+	opAndType{OMINUS, TUINT64}: ssa.OpNeg64U,
+
 	opAndType{OLSH, TINT8}:   ssa.OpLsh8,
 	opAndType{OLSH, TUINT8}:  ssa.OpLsh8,
 	opAndType{OLSH, TINT16}:  ssa.OpLsh16,
@@ -654,9 +663,9 @@
 		return s.variable(n, n.Type)
 
 	// unary ops
-	case ONOT:
+	case ONOT, OMINUS:
 		a := s.expr(n.Left)
-		return s.newValue1(ssa.OpNot, a.Type, a)
+		return s.newValue1(s.ssaOp(n.Op, n.Type), a.Type, a)
 
 	case OADDR:
 		return s.addr(n.Left)
@@ -1384,6 +1393,10 @@
 		p.From.Offset = v.AuxInt
 		p.To.Type = obj.TYPE_REG
 		p.To.Reg = regnum(v.Args[0])
+	case ssa.OpAMD64NEGQ, ssa.OpAMD64NEGL, ssa.OpAMD64NEGW, ssa.OpAMD64NEGB:
+		p := Prog(v.Op.Asm())
+		p.To.Type = obj.TYPE_REG
+		p.To.Reg = regnum(v.Args[0])
 	case ssa.OpSP, ssa.OpSB:
 		// nothing to do
 	case ssa.OpAMD64SETEQ, ssa.OpAMD64SETNE,