src/cmd/compile/internal/gc/sinit.go |  8 ++++++++
 src/cmd/compile/internal/gc/walk.go  | 15 +++++++++++----
 test/sinit.go                        |  5 +++++

diff --git a/src/cmd/compile/internal/gc/sinit.go b/src/cmd/compile/internal/gc/sinit.go
index e1a99d4ca0ee681297bb3c4d393b8b799529ddc4..0ced4ef3b0928bf3cd97fe98db2f5f4a24e2e5b6 100644
--- a/src/cmd/compile/internal/gc/sinit.go
+++ b/src/cmd/compile/internal/gc/sinit.go
@@ -302,6 +302,10 @@ 	}
 	orig := r
 	r = r.Name.Defn.Right
 
+	for r.Op == OCONVNOP {
+		r = r.Left
+	}
+
 	switch r.Op {
 	case ONAME:
 		if staticcopy(l, r, out) {
@@ -394,6 +398,10 @@ }
 
 func staticassign(l *Node, r *Node, out **NodeList) bool {
 	var n1 Node
+
+	for r.Op == OCONVNOP {
+		r = r.Left
+	}
 
 	switch r.Op {
 	//dump("not static", r);
diff --git a/src/cmd/compile/internal/gc/walk.go b/src/cmd/compile/internal/gc/walk.go
index 626b26fec7f3462676656a6eee7f47ca72ab3c52..d89d25efdd8c90f9effe6211ab95c016ff258763 100644
--- a/src/cmd/compile/internal/gc/walk.go
+++ b/src/cmd/compile/internal/gc/walk.go
@@ -2194,13 +2194,20 @@ 	if isstack(l) {
 		return false
 	}
 
-	// No write barrier for implicit or explicit zeroing.
-	if r == nil || iszero(r) {
+	// No write barrier for implicit zeroing.
+	if r == nil {
 		return false
 	}
 
-	// No write barrier for initialization to constant.
-	if r.Op == OLITERAL {
+	// Ignore no-op conversions when making decision.
+	// Ensures that xp = unsafe.Pointer(&x) is treated
+	// the same as xp = &x.
+	for r.Op == OCONVNOP {
+		r = r.Left
+	}
+
+	// No write barrier for zeroing or initialization to constant.
+	if iszero(r) || r.Op == OLITERAL {
 		return false
 	}
 
diff --git a/test/sinit.go b/test/sinit.go
index df1a4cc930ca784b3ae166f71db16f9f03ab54a5..188a5301a2f35d41e949dea0b26deee61c834898 100644
--- a/test/sinit.go
+++ b/test/sinit.go
@@ -10,6 +10,8 @@ // This test is run by sinit_run.go.
 
 package p
 
+import "unsafe"
+
 // Should be no init func in the assembly.
 // All these initializations should be done at link time.
 
@@ -284,3 +286,6 @@ 	M()
 }
 
 var _ Mer = (*T1)(nil)
+
+var Byte byte
+var PtrByte unsafe.Pointer = unsafe.Pointer(&Byte)