diff --git a/src/cmd/compile/internal/inline/inl.go b/src/cmd/compile/internal/inline/inl.go
index 24812c8c0d..81aa200a84 100644
--- a/src/cmd/compile/internal/inline/inl.go
+++ b/src/cmd/compile/internal/inline/inl.go
@@ -506,6 +506,8 @@ func (v *hairyVisitor) tooHairy(fn *ir.Func) bool {
 	return false
 }
 
+// doNode visits n and its children, updates the state in v, and returns true if
+// n makes the current function too hairy for inlining.
 func (v *hairyVisitor) doNode(n ir.Node) bool {
 	if n == nil {
 		return false
@@ -637,13 +639,10 @@ func (v *hairyVisitor) doNode(n ir.Node) bool {
 		// TODO(danscales): Maybe make budget proportional to number of closure
 		// variables, e.g.:
 		//v.budget -= int32(len(n.(*ir.ClosureExpr).Func.ClosureVars) * 3)
+		// TODO(austin): However, if we're able to inline this closure into
+		// v.curFunc, then we actually pay nothing for the closure captures. We
+		// should try to account for that if we're going to account for captures.
 		v.budget -= 15
-		// Scan body of closure (which DoChildren doesn't automatically
-		// do) to check for disallowed ops in the body and include the
-		// body in the budget.
-		if doList(n.(*ir.ClosureExpr).Func.Body, v.do) {
-			return true
-		}
 
 	case ir.OGO,
 		ir.ODEFER,
diff --git a/src/cmd/compile/internal/test/inl_test.go b/src/cmd/compile/internal/test/inl_test.go
index 2a16b21cef..205b746dd8 100644
--- a/src/cmd/compile/internal/test/inl_test.go
+++ b/src/cmd/compile/internal/test/inl_test.go
@@ -180,19 +180,15 @@ func TestIntendedInlining(t *testing.T) {
 		"net": {
 			"(*UDPConn).ReadFromUDP",
 		},
-		// These testpoints commented out for now, since CL 479095
-		// had to be reverted. We can re-enable this once we roll
-		// forward with a new version of 479095.
-		/*
-			"sync": {
-				// Both OnceFunc and its returned closure need to be inlinable so
-				// that the returned closure can be inlined into the caller of OnceFunc.
-				"OnceFunc",
-				"OnceFunc.func2", // The returned closure.
-				// TODO(austin): It would be good to check OnceValue and OnceValues,
-				// too, but currently they aren't reported because they have type
-				// parameters and aren't instantiated in sync.
-			}, */
+		"sync": {
+			// Both OnceFunc and its returned closure need to be inlinable so
+			// that the returned closure can be inlined into the caller of OnceFunc.
+			"OnceFunc",
+			"OnceFunc.func2", // The returned closure.
+			// TODO(austin): It would be good to check OnceValue and OnceValues,
+			// too, but currently they aren't reported because they have type
+			// parameters and aren't instantiated in sync.
+		},
 		"sync/atomic": {
 			// (*Bool).CompareAndSwap handled below.
 			"(*Bool).Load",
diff --git a/test/closure3.dir/main.go b/test/closure3.dir/main.go
index 4d02a4d10e..04a669206e 100644
--- a/test/closure3.dir/main.go
+++ b/test/closure3.dir/main.go
@@ -232,15 +232,15 @@ func main() {
 
 	{
 		c := 3
-		func() { // ERROR "func literal does not escape"
+		func() { // ERROR "can inline main.func26"
 			c = 4
-			func() { // ERROR "func literal does not escape"
+			func() {
 				if c != 4 {
 					ppanic("c != 4")
 				}
 				recover() // prevent inlining
 			}()
-		}()
+		}() // ERROR "inlining call to main.func26" "func literal does not escape"
 		if c != 4 {
 			ppanic("c != 4")
 		}
@@ -248,33 +248,37 @@ func main() {
 
 	{
 		a := 2
-		if r := func(x int) int { // ERROR "func literal does not escape"
+		// This has an unfortunate exponential growth, where as we visit each
+		// function, we inline the inner closure, and that constructs a new
+		// function for any closures inside the inner function, and then we
+		// revisit those. E.g., func34 and func36 are constructed by the inliner.
+		if r := func(x int) int { // ERROR "can inline main.func27"
 			b := 3
-			return func(y int) int { // ERROR "can inline main.func27.1"
+			return func(y int) int { // ERROR "can inline main.func27.1" "can inline main.func34"
 				c := 5
-				return func(z int) int { // ERROR "can inline main.func27.1.1" "can inline main.func27.(func)?2"
+				return func(z int) int { // ERROR "can inline main.func27.1.1" "can inline main.func27.(func)?2" "can inline main.func34.1" "can inline main.func36"
 					return a*x + b*y + c*z
 				}(10) // ERROR "inlining call to main.func27.1.1"
 			}(100) // ERROR "inlining call to main.func27.1" "inlining call to main.func27.(func)?2"
-		}(1000); r != 2350 {
+		}(1000); r != 2350 { // ERROR "inlining call to main.func27" "inlining call to main.func34" "inlining call to main.func36"
 			ppanic("r != 2350")
 		}
 	}
 
 	{
 		a := 2
-		if r := func(x int) int { // ERROR "func literal does not escape"
+		if r := func(x int) int { // ERROR "can inline main.func28"
 			b := 3
-			return func(y int) int { // ERROR "can inline main.func28.1"
+			return func(y int) int { // ERROR "can inline main.func28.1" "can inline main.func35"
 				c := 5
-				func(z int) { // ERROR "can inline main.func28.1.1" "can inline main.func28.(func)?2"
+				func(z int) { // ERROR "can inline main.func28.1.1" "can inline main.func28.(func)?2" "can inline main.func35.1" "can inline main.func37"
 					a = a * x
 					b = b * y
 					c = c * z
 				}(10) // ERROR "inlining call to main.func28.1.1"
 				return a + c
 			}(100) + b // ERROR "inlining call to main.func28.1" "inlining call to main.func28.(func)?2"
-		}(1000); r != 2350 {
+		}(1000); r != 2350 { // ERROR "inlining call to main.func28" "inlining call to main.func35" "inlining call to main.func37"
 			ppanic("r != 2350")
 		}
 		if a != 2000 {