diff --git a/src/cmd/compile/internal/ppc64/ssa.go b/src/cmd/compile/internal/ppc64/ssa.go
index 8689bd8b27e..e5a9eecc6a9 100644
--- a/src/cmd/compile/internal/ppc64/ssa.go
+++ b/src/cmd/compile/internal/ppc64/ssa.go
@@ -468,6 +468,10 @@ func ssaGenValue(s *ssagen.State, v *ssa.Value) {
 		p8 := s.Prog(obj.ANOP)
 		p6.To.SetTarget(p8)
 
+	case ssa.OpPPC64LoweredPubBarrier:
+		// LWSYNC
+		s.Prog(v.Op.Asm())
+
 	case ssa.OpPPC64LoweredGetClosurePtr:
 		// Closure pointer is R11 (already)
 		ssagen.CheckLoweredGetClosurePtr(v)
diff --git a/src/cmd/compile/internal/ssa/gen/PPC64.rules b/src/cmd/compile/internal/ssa/gen/PPC64.rules
index 1fe7ae9e53c..bb3ac8ad1be 100644
--- a/src/cmd/compile/internal/ssa/gen/PPC64.rules
+++ b/src/cmd/compile/internal/ssa/gen/PPC64.rules
@@ -687,6 +687,9 @@
 // Write barrier.
 (WB ...) => (LoweredWB ...)
 
+// Publication barrier as intrinsic
+(PubBarrier ...) => (LoweredPubBarrier ...)
+
 (PanicBounds [kind] x y mem) && boundsABI(kind) == 0 => (LoweredPanicBoundsA [kind] x y mem)
 (PanicBounds [kind] x y mem) && boundsABI(kind) == 1 => (LoweredPanicBoundsB [kind] x y mem)
 (PanicBounds [kind] x y mem) && boundsABI(kind) == 2 => (LoweredPanicBoundsC [kind] x y mem)
diff --git a/src/cmd/compile/internal/ssa/gen/PPC64Ops.go b/src/cmd/compile/internal/ssa/gen/PPC64Ops.go
index e3b79200fe1..bc7fa0a1a3f 100644
--- a/src/cmd/compile/internal/ssa/gen/PPC64Ops.go
+++ b/src/cmd/compile/internal/ssa/gen/PPC64Ops.go
@@ -686,6 +686,7 @@ func init() {
 		// but may clobber anything else, including R31 (REGTMP).
 		{name: "LoweredWB", argLength: 3, reg: regInfo{inputs: []regMask{buildReg("R20"), buildReg("R21")}, clobbers: (callerSave &^ buildReg("R0 R3 R4 R5 R6 R7 R8 R9 R10 R14 R15 R16 R17 R20 R21 g")) | buildReg("R31")}, clobberFlags: true, aux: "Sym", symEffect: "None"},
 
+		{name: "LoweredPubBarrier", argLength: 1, asm: "LWSYNC", hasSideEffects: true}, // Do data barrier. arg0=memory
 		// There are three of these functions so that they can have three different register inputs.
 		// When we check 0 <= c <= cap (A), then 0 <= b <= c (B), then 0 <= a <= b (C), we want the
 		// default registers to match so we don't need to copy registers around unnecessarily.
diff --git a/src/cmd/compile/internal/ssa/opGen.go b/src/cmd/compile/internal/ssa/opGen.go
index 0357fdb12ab..6d2ec4a2352 100644
--- a/src/cmd/compile/internal/ssa/opGen.go
+++ b/src/cmd/compile/internal/ssa/opGen.go
@@ -2138,6 +2138,7 @@ const (
 	OpPPC64LoweredAtomicOr8
 	OpPPC64LoweredAtomicOr32
 	OpPPC64LoweredWB
+	OpPPC64LoweredPubBarrier
 	OpPPC64LoweredPanicBoundsA
 	OpPPC64LoweredPanicBoundsB
 	OpPPC64LoweredPanicBoundsC
@@ -28775,6 +28776,13 @@ var opcodeTable = [...]opInfo{
 			clobbers: 18446744072632408064, // R11 R12 R18 R19 R22 R23 R24 R25 R26 R27 R28 R29 R31 F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 XER
 		},
 	},
+	{
+		name:           "LoweredPubBarrier",
+		argLen:         1,
+		hasSideEffects: true,
+		asm:            ppc64.ALWSYNC,
+		reg:            regInfo{},
+	},
 	{
 		name:    "LoweredPanicBoundsA",
 		auxType: auxInt64,
diff --git a/src/cmd/compile/internal/ssa/rewritePPC64.go b/src/cmd/compile/internal/ssa/rewritePPC64.go
index 1d945be7419..a21b757ca92 100644
--- a/src/cmd/compile/internal/ssa/rewritePPC64.go
+++ b/src/cmd/compile/internal/ssa/rewritePPC64.go
@@ -643,6 +643,9 @@ func rewriteValuePPC64(v *Value) bool {
 		return rewriteValuePPC64_OpPrefetchCache(v)
 	case OpPrefetchCacheStreamed:
 		return rewriteValuePPC64_OpPrefetchCacheStreamed(v)
+	case OpPubBarrier:
+		v.Op = OpPPC64LoweredPubBarrier
+		return true
 	case OpRotateLeft16:
 		return rewriteValuePPC64_OpRotateLeft16(v)
 	case OpRotateLeft32:
diff --git a/src/cmd/compile/internal/ssagen/ssa.go b/src/cmd/compile/internal/ssagen/ssa.go
index f6176c4f059..c15fd785636 100644
--- a/src/cmd/compile/internal/ssagen/ssa.go
+++ b/src/cmd/compile/internal/ssagen/ssa.go
@@ -3951,7 +3951,7 @@ func InitTables() {
 			s.vars[memVar] = s.newValue1(ssa.OpPubBarrier, types.TypeMem, s.mem())
 			return nil
 		},
-		sys.ARM64)
+		sys.ARM64, sys.PPC64)
 
 	/******** runtime/internal/sys ********/
 	addF("runtime/internal/sys", "Ctz32",