Update prebuilts to go 1.5.1android-n-preview-2android-n-preview-1brillo-m9-releasebrillo-m9-devbrillo-m8-releasebrillo-m8-devbrillo-m7-releasebrillo-m7-mr-devbrillo-m7-devbrillo-m10-releasebrillo-m10-dev

Change-Id: Ic39c72590cb0561132faefbca121c3782372b9bf

1 files changed, 692 insertions, 356 deletions

diff --git a/test/escape2n.go b/test/escape2n.go
index 002a78ea5..c32877321 100644
--- a/test/escape2n.go
+++ b/test/escape2n.go
@@ -18,94 +18,94 @@ import (
 
 var gxx *int
 
-func foo1(x int) { // ERROR "moved to heap: x"
-	gxx = &x // ERROR "&x escapes to heap"
+func foo1(x int) { // ERROR "moved to heap: x$"
+	gxx = &x // ERROR "&x escapes to heap$"
 }
 
-func foo2(yy *int) { // ERROR "leaking param: yy"
+func foo2(yy *int) { // ERROR "leaking param: yy$"
 	gxx = yy
 }
 
-func foo3(x int) *int { // ERROR "moved to heap: x"
-	return &x // ERROR "&x escapes to heap"
+func foo3(x int) *int { // ERROR "moved to heap: x$"
+	return &x // ERROR "&x escapes to heap$"
 }
 
 type T *T
 
-func foo3b(t T) { // ERROR "leaking param: t"
+func foo3b(t T) { // ERROR "leaking param: t$"
 	*t = t
 }
 
 // xx isn't going anywhere, so use of yy is ok
-func foo4(xx, yy *int) { // ERROR "xx does not escape" "yy does not escape"
+func foo4(xx, yy *int) { // ERROR "foo4 xx does not escape$" "foo4 yy does not escape$"
 	xx = yy
 }
 
 // xx isn't going anywhere, so taking address of yy is ok
-func foo5(xx **int, yy *int) { // ERROR "xx does not escape" "yy does not escape"
-	xx = &yy // ERROR "&yy does not escape"
+func foo5(xx **int, yy *int) { // ERROR "foo5 xx does not escape$" "foo5 yy does not escape$"
+	xx = &yy // ERROR "foo5 &yy does not escape$"
 }
 
-func foo6(xx **int, yy *int) { // ERROR "xx does not escape" "leaking param: yy"
+func foo6(xx **int, yy *int) { // ERROR "foo6 xx does not escape$" "leaking param: yy$"
 	*xx = yy
 }
 
-func foo7(xx **int, yy *int) { // ERROR "xx does not escape" "yy does not escape"
+func foo7(xx **int, yy *int) { // ERROR "foo7 xx does not escape$" "foo7 yy does not escape$"
 	**xx = *yy
 }
 
-func foo8(xx, yy *int) int { // ERROR "xx does not escape" "yy does not escape"
+func foo8(xx, yy *int) int { // ERROR "foo8 xx does not escape$" "foo8 yy does not escape$"
 	xx = yy
 	return *xx
 }
 
-func foo9(xx, yy *int) *int { // ERROR "leaking param: xx" "leaking param: yy"
+func foo9(xx, yy *int) *int { // ERROR "leaking param: xx to result ~r2 level=0$" "leaking param: yy to result ~r2 level=0$"
 	xx = yy
 	return xx
 }
 
-func foo10(xx, yy *int) { // ERROR "xx does not escape" "yy does not escape"
+func foo10(xx, yy *int) { // ERROR "foo10 xx does not escape$" "foo10 yy does not escape$"
 	*xx = *yy
 }
 
 func foo11() int {
 	x, y := 0, 42
-	xx := &x // ERROR "&x does not escape"
-	yy := &y // ERROR "&y does not escape"
+	xx := &x // ERROR "foo11 &x does not escape$"
+	yy := &y // ERROR "foo11 &y does not escape$"
 	*xx = *yy
 	return x
 }
 
 var xxx **int
 
-func foo12(yyy **int) { // ERROR "leaking param: yyy"
+func foo12(yyy **int) { // ERROR "leaking param: yyy$"
 	xxx = yyy
 }
 
 // Must treat yyy as leaking because *yyy leaks, and the escape analysis
 // summaries in exported metadata do not distinguish these two cases.
-func foo13(yyy **int) { // ERROR "leaking param: yyy"
+func foo13(yyy **int) { // ERROR "leaking param content: yyy$"
 	*xxx = *yyy
 }
 
-func foo14(yyy **int) { // ERROR "yyy does not escape"
+func foo14(yyy **int) { // ERROR "foo14 yyy does not escape$"
 	**xxx = **yyy
 }
 
-func foo15(yy *int) { // ERROR "moved to heap: yy"
-	xxx = &yy // ERROR "&yy escapes to heap"
+func foo15(yy *int) { // ERROR "moved to heap: yy$"
+	xxx = &yy // ERROR "&yy escapes to heap$"
 }
 
-func foo16(yy *int) { // ERROR "leaking param: yy"
+func foo16(yy *int) { // ERROR "leaking param: yy$"
 	*xxx = yy
 }
 
-func foo17(yy *int) { // ERROR "yy does not escape"
+func foo17(yy *int) { // ERROR "foo17 yy does not escape$"
 	**xxx = *yy
 }
 
-func foo18(y int) { // ERROR "moved to heap: "y"
-	*xxx = &y // ERROR "&y escapes to heap"
+func foo18(y int) { // ERROR "moved to heap: y$"
+	*xxx = &y // ERROR "&y escapes to heap$"
 }
 
 func foo19(y int) {
@@ -118,52 +118,52 @@ type Bar struct {
 }
 
 func NewBar() *Bar {
-	return &Bar{42, nil} // ERROR "&Bar literal escapes to heap"
+	return &Bar{42, nil} // ERROR "&Bar literal escapes to heap$"
 }
 
-func NewBarp(x *int) *Bar { // ERROR "leaking param: x"
-	return &Bar{42, x} // ERROR "&Bar literal escapes to heap"
+func NewBarp(x *int) *Bar { // ERROR "leaking param: x to result ~r1 level=-1$"
+	return &Bar{42, x} // ERROR "&Bar literal escapes to heap$"
 }
 
-func NewBarp2(x *int) *Bar { // ERROR "x does not escape"
-	return &Bar{*x, nil} // ERROR "&Bar literal escapes to heap"
+func NewBarp2(x *int) *Bar { // ERROR "NewBarp2 x does not escape$"
+	return &Bar{*x, nil} // ERROR "&Bar literal escapes to heap$"
 }
 
-func (b *Bar) NoLeak() int { // ERROR "b does not escape"
+func (b *Bar) NoLeak() int { // ERROR "\(\*Bar\).NoLeak b does not escape$"
 	return *(b.ii)
 }
 
-func (b *Bar) Leak() *int { // ERROR "leaking param: b"
-	return &b.i // ERROR "&b.i escapes to heap"
+func (b *Bar) Leak() *int { // ERROR "leaking param: b to result ~r0 level=0$"
+	return &b.i // ERROR "&b.i escapes to heap$"
 }
 
-func (b *Bar) AlsoNoLeak() *int { // ERROR "leaking param b content to result ~r0"
+func (b *Bar) AlsoNoLeak() *int { // ERROR "leaking param: b to result ~r0 level=1$"
 	return b.ii
 }
 
-func (b Bar) AlsoLeak() *int { // ERROR "leaking param: b"
+func (b Bar) AlsoLeak() *int { // ERROR "leaking param: b to result ~r0 level=0$"
 	return b.ii
 }
 
-func (b Bar) LeaksToo() *int { // ERROR "leaking param: b"
-	v := 0    // ERROR "moved to heap: v"
-	b.ii = &v // ERROR "&v escapes"
+func (b Bar) LeaksToo() *int { // ERROR "leaking param: b to result ~r0 level=0$"
+	v := 0    // ERROR "moved to heap: v$"
+	b.ii = &v // ERROR "&v escapes to heap$"
 	return b.ii
 }
 
-func (b *Bar) LeaksABit() *int { // ERROR "leaking param b content to result ~r0"
-	v := 0    // ERROR "moved to heap: v"
-	b.ii = &v // ERROR "&v escapes"
+func (b *Bar) LeaksABit() *int { // ERROR "leaking param: b to result ~r0 level=1$"
+	v := 0    // ERROR "moved to heap: v$"
+	b.ii = &v // ERROR "&v escapes to heap$"
 	return b.ii
 }
 
-func (b Bar) StillNoLeak() int { // ERROR "b does not escape"
+func (b Bar) StillNoLeak() int { // ERROR "Bar.StillNoLeak b does not escape$"
 	v := 0
-	b.ii = &v // ERROR "&v does not escape"
+	b.ii = &v // ERROR "Bar.StillNoLeak &v does not escape$"
 	return b.i
 }
 
-func goLeak(b *Bar) { // ERROR "leaking param: b"
+func goLeak(b *Bar) { // ERROR "leaking param: b$"
 	go b.NoLeak()
 }
 
@@ -173,90 +173,105 @@ type Bar2 struct {
 }
 
 func NewBar2() *Bar2 {
-	return &Bar2{[12]int{42}, nil} // ERROR "&Bar2 literal escapes to heap"
+	return &Bar2{[12]int{42}, nil} // ERROR "&Bar2 literal escapes to heap$"
 }
 
-func (b *Bar2) NoLeak() int { // ERROR "b does not escape"
+func (b *Bar2) NoLeak() int { // ERROR "\(\*Bar2\).NoLeak b does not escape$"
 	return b.i[0]
 }
 
-func (b *Bar2) Leak() []int { // ERROR "leaking param: b"
-	return b.i[:] // ERROR "b.i escapes to heap"
+func (b *Bar2) Leak() []int { // ERROR "leaking param: b to result ~r0 level=0$"
+	return b.i[:] // ERROR "b.i escapes to heap$"
 }
 
-func (b *Bar2) AlsoNoLeak() []int { // ERROR "leaking param b content to result ~r0"
+func (b *Bar2) AlsoNoLeak() []int { // ERROR "leaking param: b to result ~r0 level=1$"
 	return b.ii[0:1]
 }
 
-func (b Bar2) AgainNoLeak() [12]int { // ERROR "b does not escape"
+func (b Bar2) AgainNoLeak() [12]int { // ERROR "Bar2.AgainNoLeak b does not escape$"
 	return b.i
 }
 
-func (b *Bar2) LeakSelf() { // ERROR "leaking param: b"
-	b.ii = b.i[0:4] // ERROR "b.i escapes to heap"
+func (b *Bar2) LeakSelf() { // ERROR "leaking param: b$"
+	b.ii = b.i[0:4] // ERROR "b.i escapes to heap$"
 }
 
-func (b *Bar2) LeakSelf2() { // ERROR "leaking param: b"
+func (b *Bar2) LeakSelf2() { // ERROR "leaking param: b$"
 	var buf []int
-	buf = b.i[0:] // ERROR "b.i escapes to heap"
+	buf = b.i[0:] // ERROR "b.i escapes to heap$"
 	b.ii = buf
 }
 
 func foo21() func() int {
-	x := 42             // ERROR "moved to heap: x"
-	return func() int { // ERROR "func literal escapes to heap"
-		return x // ERROR "&x escapes to heap"
+	x := 42
+	return func() int { // ERROR "func literal escapes to heap$"
+		return x
+	}
+}
+
+func foo21a() func() int {
+	x := 42             // ERROR "moved to heap: x$"
+	return func() int { // ERROR "func literal escapes to heap$"
+		x++ // ERROR "&x escapes to heap$"
+		return x
 	}
 }
 
 func foo22() int {
 	x := 42
-	return func() int { // ERROR "func literal does not escape"
+	return func() int { // ERROR "foo22 func literal does not escape$"
 		return x
 	}()
 }
 
-func foo23(x int) func() int { // ERROR "moved to heap: x"
-	return func() int { // ERROR "func literal escapes to heap"
-		return x // ERROR "&x escapes to heap"
+func foo23(x int) func() int {
+	return func() int { // ERROR "func literal escapes to heap$"
+		return x
 	}
 }
 
-func foo23a(x int) func() int { // ERROR "moved to heap: x"
-	f := func() int { // ERROR "func literal escapes to heap"
-		return x // ERROR "&x escapes to heap"
+func foo23a(x int) func() int {
+	f := func() int { // ERROR "func literal escapes to heap$"
+		return x
 	}
 	return f
 }
 
-func foo23b(x int) *(func() int) { // ERROR "moved to heap: x"
-	f := func() int { return x } // ERROR "moved to heap: f" "func literal escapes to heap" "&x escapes to heap"
-	return &f                    // ERROR "&f escapes to heap"
+func foo23b(x int) *(func() int) {
+	f := func() int { return x } // ERROR "func literal escapes to heap$" "moved to heap: f$"
+	return &f                    // ERROR "&f escapes to heap$"
+}
+
+func foo23c(x int) func() int { // ERROR "moved to heap: x$"
+	return func() int { // ERROR "func literal escapes to heap$"
+		x++ // ERROR "&x escapes to heap$"
+		return x
+	}
 }
 
 func foo24(x int) int {
-	return func() int { // ERROR "func literal does not escape"
+	return func() int { // ERROR "foo24 func literal does not escape$"
 		return x
 	}()
 }
 
 var x *int
 
-func fooleak(xx *int) int { // ERROR "leaking param: xx"
+func fooleak(xx *int) int { // ERROR "leaking param: xx$"
 	x = xx
 	return *x
 }
 
-func foonoleak(xx *int) int { // ERROR "xx does not escape"
+func foonoleak(xx *int) int { // ERROR "foonoleak xx does not escape$"
 	return *x + *xx
 }
 
-func foo31(x int) int { // ERROR "moved to heap: x"
-	return fooleak(&x) // ERROR "&x escapes to heap"
+func foo31(x int) int { // ERROR "moved to heap: x$"
+	return fooleak(&x) // ERROR "&x escapes to heap$"
 }
 
 func foo32(x int) int {
-	return foonoleak(&x) // ERROR "&x does not escape"
+	return foonoleak(&x) // ERROR "foo32 &x does not escape$"
 }
 
 type Foo struct {
@@ -267,114 +282,114 @@ type Foo struct {
 var F Foo
 var pf *Foo
 
-func (f *Foo) fooleak() { // ERROR "leaking param: f"
+func (f *Foo) fooleak() { // ERROR "leaking param: f$"
 	pf = f
 }
 
-func (f *Foo) foonoleak() { // ERROR "f does not escape"
+func (f *Foo) foonoleak() { // ERROR "\(\*Foo\).foonoleak f does not escape$"
 	F.x = f.x
 }
 
-func (f *Foo) Leak() { // ERROR "leaking param: f"
+func (f *Foo) Leak() { // ERROR "leaking param: f$"
 	f.fooleak()
 }
 
-func (f *Foo) NoLeak() { // ERROR "f does not escape"
+func (f *Foo) NoLeak() { // ERROR "\(\*Foo\).NoLeak f does not escape$"
 	f.foonoleak()
 }
 
-func foo41(x int) { // ERROR "moved to heap: x"
-	F.xx = &x // ERROR "&x escapes to heap"
+func foo41(x int) { // ERROR "moved to heap: x$"
+	F.xx = &x // ERROR "&x escapes to heap$"
 }
 
-func (f *Foo) foo42(x int) { // ERROR "f does not escape" "moved to heap: x"
-	f.xx = &x // ERROR "&x escapes to heap"
+func (f *Foo) foo42(x int) { // ERROR "\(\*Foo\).foo42 f does not escape$" "moved to heap: x$"
+	f.xx = &x // ERROR "&x escapes to heap$"
 }
 
-func foo43(f *Foo, x int) { // ERROR "f does not escape" "moved to heap: x"
-	f.xx = &x // ERROR "&x escapes to heap"
+func foo43(f *Foo, x int) { // ERROR "foo43 f does not escape$" "moved to heap: x$"
+	f.xx = &x // ERROR "&x escapes to heap$"
 }
 
-func foo44(yy *int) { // ERROR "leaking param: yy"
+func foo44(yy *int) { // ERROR "leaking param: yy$"
 	F.xx = yy
 }
 
-func (f *Foo) foo45() { // ERROR "f does not escape"
+func (f *Foo) foo45() { // ERROR "\(\*Foo\).foo45 f does not escape$"
 	F.x = f.x
 }
 
 // See foo13 above for explanation of why f leaks.
-func (f *Foo) foo46() { // ERROR "leaking param: f"
+func (f *Foo) foo46() { // ERROR "leaking param content: f$"
 	F.xx = f.xx
 }
 
-func (f *Foo) foo47() { // ERROR "leaking param: f"
-	f.xx = &f.x // ERROR "&f.x escapes to heap"
+func (f *Foo) foo47() { // ERROR "leaking param: f$"
+	f.xx = &f.x // ERROR "&f.x escapes to heap$"
 }
 
 var ptrSlice []*int
 
-func foo50(i *int) { // ERROR "leaking param: i"
+func foo50(i *int) { // ERROR "leaking param: i$"
 	ptrSlice[0] = i
 }
 
 var ptrMap map[*int]*int
 
-func foo51(i *int) { // ERROR "leaking param: i"
+func foo51(i *int) { // ERROR "leaking param: i$"
 	ptrMap[i] = i
 }
 
-func indaddr1(x int) *int { // ERROR "moved to heap: x"
-	return &x // ERROR "&x escapes to heap"
+func indaddr1(x int) *int { // ERROR "moved to heap: x$"
+	return &x // ERROR "&x escapes to heap$"
 }
 
-func indaddr2(x *int) *int { // ERROR "leaking param: x"
-	return *&x // ERROR "&x does not escape"
+func indaddr2(x *int) *int { // ERROR "leaking param: x to result ~r1 level=0$"
+	return *&x // ERROR "indaddr2 &x does not escape$"
 }
 
-func indaddr3(x *int32) *int { // ERROR "leaking param: x"
-	return *(**int)(unsafe.Pointer(&x)) // ERROR "&x does not escape"
+func indaddr3(x *int32) *int { // ERROR "leaking param: x to result ~r1 level=0$"
+	return *(**int)(unsafe.Pointer(&x)) // ERROR "indaddr3 &x does not escape$"
 }
 
 // From package math:
 
 func Float32bits(f float32) uint32 {
-	return *(*uint32)(unsafe.Pointer(&f)) // ERROR "&f does not escape"
+	return *(*uint32)(unsafe.Pointer(&f)) // ERROR "Float32bits &f does not escape$"
 }
 
 func Float32frombits(b uint32) float32 {
-	return *(*float32)(unsafe.Pointer(&b)) // ERROR "&b does not escape"
+	return *(*float32)(unsafe.Pointer(&b)) // ERROR "Float32frombits &b does not escape$"
 }
 
 func Float64bits(f float64) uint64 {
-	return *(*uint64)(unsafe.Pointer(&f)) // ERROR "&f does not escape"
+	return *(*uint64)(unsafe.Pointer(&f)) // ERROR "Float64bits &f does not escape$"
 }
 
 func Float64frombits(b uint64) float64 {
-	return *(*float64)(unsafe.Pointer(&b)) // ERROR "&b does not escape"
+	return *(*float64)(unsafe.Pointer(&b)) // ERROR "Float64frombits &b does not escape$"
 }
 
 // contrast with
-func float64bitsptr(f float64) *uint64 { // ERROR "moved to heap: f"
-	return (*uint64)(unsafe.Pointer(&f)) // ERROR "&f escapes to heap"
+func float64bitsptr(f float64) *uint64 { // ERROR "moved to heap: f$"
+	return (*uint64)(unsafe.Pointer(&f)) // ERROR "&f escapes to heap$"
 }
 
-func float64ptrbitsptr(f *float64) *uint64 { // ERROR "leaking param: f"
+func float64ptrbitsptr(f *float64) *uint64 { // ERROR "leaking param: f to result ~r1 level=0$"
 	return (*uint64)(unsafe.Pointer(f))
 }
 
-func typesw(i interface{}) *int { // ERROR "leaking param: i"
+func typesw(i interface{}) *int { // ERROR "leaking param: i to result ~r1 level=0$"
 	switch val := i.(type) {
 	case *int:
 		return val
 	case *int8:
-		v := int(*val) // ERROR "moved to heap: v"
-		return &v      // ERROR "&v escapes to heap"
+		v := int(*val) // ERROR "moved to heap: v$"
+		return &v      // ERROR "&v escapes to heap$"
 	}
 	return nil
 }
 
-func exprsw(i *int) *int { // ERROR "leaking param: i"
+func exprsw(i *int) *int { // ERROR "leaking param: i to result ~r1 level=0$"
 	switch j := i; *j + 110 {
 	case 12:
 		return j
@@ -386,20 +401,20 @@ func exprsw(i *int) *int { // ERROR "leaking param: i"
 }
 
 // assigning to an array element is like assigning to the array
-func foo60(i *int) *int { // ERROR "leaking param: i"
+func foo60(i *int) *int { // ERROR "leaking param: i to result ~r1 level=0$"
 	var a [12]*int
 	a[0] = i
 	return a[1]
 }
 
-func foo60a(i *int) *int { // ERROR "i does not escape"
+func foo60a(i *int) *int { // ERROR "foo60a i does not escape$"
 	var a [12]*int
 	a[0] = i
 	return nil
 }
 
 // assigning to a struct field  is like assigning to the struct
-func foo61(i *int) *int { // ERROR "leaking param: i"
+func foo61(i *int) *int { // ERROR "leaking param: i to result ~r1 level=0$"
 	type S struct {
 		a, b *int
 	}
@@ -408,7 +423,7 @@ func foo61(i *int) *int { // ERROR "leaking param: i"
 	return s.b
 }
 
-func foo61a(i *int) *int { // ERROR "i does not escape"
+func foo61a(i *int) *int { // ERROR "foo61a i does not escape$"
 	type S struct {
 		a, b *int
 	}
@@ -420,11 +435,11 @@ func foo61a(i *int) *int { // ERROR "i does not escape"
 // assigning to a struct field is like assigning to the struct but
 // here this subtlety is lost, since s.a counts as an assignment to a
 // track-losing dereference.
-func foo62(i *int) *int { // ERROR "leaking param: i"
+func foo62(i *int) *int { // ERROR "leaking param: i$"
 	type S struct {
 		a, b *int
 	}
-	s := new(S) // ERROR "new[(]S[)] does not escape"
+	s := new(S) // ERROR "foo62 new\(S\) does not escape$"
 	s.a = i
 	return nil // s.b
 }
@@ -433,14 +448,14 @@ type M interface {
 	M()
 }
 
-func foo63(m M) { // ERROR "m does not escape"
+func foo63(m M) { // ERROR "foo63 m does not escape$"
 }
 
-func foo64(m M) { // ERROR "leaking param: m"
+func foo64(m M) { // ERROR "leaking param: m$"
 	m.M()
 }
 
-func foo64b(m M) { // ERROR "leaking param: m"
+func foo64b(m M) { // ERROR "leaking param: m$"
 	defer m.M()
 }
 
@@ -450,55 +465,56 @@ func (MV) M() {}
 
 func foo65() {
 	var mv MV
-	foo63(&mv) // ERROR "&mv does not escape"
+	foo63(&mv) // ERROR "foo65 &mv does not escape$"
 }
 
 func foo66() {
-	var mv MV  // ERROR "moved to heap: mv"
-	foo64(&mv) // ERROR "&mv escapes to heap"
+	var mv MV  // ERROR "moved to heap: mv$"
+	foo64(&mv) // ERROR "&mv escapes to heap$"
 }
 
 func foo67() {
 	var mv MV
-	foo63(mv)
+	foo63(mv) // ERROR "foo67 mv does not escape$"
 }
 
 func foo68() {
 	var mv MV
-	foo64(mv) // escapes but it's an int so irrelevant
+	// escapes but it's an int so irrelevant
+	foo64(mv) // ERROR "mv escapes to heap$"
 }
 
-func foo69(m M) { // ERROR "leaking param: m"
+func foo69(m M) { // ERROR "leaking param: m$"
 	foo64(m)
 }
 
-func foo70(mv1 *MV, m M) { // ERROR "leaking param: mv1" "leaking param: m"
-	m = mv1
+func foo70(mv1 *MV, m M) { // ERROR "leaking param: m$" "leaking param: mv1$"
+	m = mv1 // ERROR "mv1 escapes to heap$"
 	foo64(m)
 }
 
-func foo71(x *int) []*int { // ERROR "leaking param: x"
+func foo71(x *int) []*int { // ERROR "leaking param: x$"
 	var y []*int
 	y = append(y, x)
 	return y
 }
 
-func foo71a(x int) []*int { // ERROR "moved to heap: x"
+func foo71a(x int) []*int { // ERROR "moved to heap: x$"
 	var y []*int
-	y = append(y, &x) // ERROR "&x escapes to heap"
+	y = append(y, &x) // ERROR "&x escapes to heap$"
 	return y
 }
 
 func foo72() {
 	var x int
 	var y [1]*int
-	y[0] = &x // ERROR "&x does not escape"
+	y[0] = &x // ERROR "foo72 &x does not escape$"
 }
 
 func foo72aa() [10]*int {
-	var x int // ERROR "moved to heap: x"
+	var x int // ERROR "moved to heap: x$"
 	var y [10]*int
-	y[0] = &x // ERROR "&x escapes to heap"
+	y[0] = &x // ERROR "&x escapes to heap$"
 	return y
 }
 
@@ -506,8 +522,8 @@ func foo72a() {
 	var y [10]*int
 	for i := 0; i < 10; i++ {
 		// escapes its scope
-		x := i    // ERROR "moved to heap: x"
-		y[i] = &x // ERROR "&x escapes to heap"
+		x := i    // ERROR "moved to heap: x$"
+		y[i] = &x // ERROR "&x escapes to heap$"
 	}
 	return
 }
@@ -515,31 +531,56 @@ func foo72a() {
 func foo72b() [10]*int {
 	var y [10]*int
 	for i := 0; i < 10; i++ {
-		x := i    // ERROR "moved to heap: x"
-		y[i] = &x // ERROR "&x escapes to heap"
+		x := i    // ERROR "moved to heap: x$"
+		y[i] = &x // ERROR "&x escapes to heap$"
 	}
 	return y
 }
 
 // issue 2145
 func foo73() {
-	s := []int{3, 2, 1} // ERROR "\[\]int literal does not escape"
+	s := []int{3, 2, 1} // ERROR "foo73 \[\]int literal does not escape$"
+	for _, v := range s {
+		vv := v
+		// actually just escapes its scope
+		defer func() { // ERROR "func literal escapes to heap$"
+			println(vv)
+		}()
+	}
+}
+
+func foo731() {
+	s := []int{3, 2, 1} // ERROR "foo731 \[\]int literal does not escape$"
 	for _, v := range s {
-		vv := v // ERROR "moved to heap: vv"
+		vv := v // ERROR "moved to heap: vv$"
 		// actually just escapes its scope
-		defer func() { // ERROR "func literal escapes to heap"
-			println(vv) // ERROR "&vv escapes to heap"
+		defer func() { // ERROR "func literal escapes to heap$"
+			vv = 42 // ERROR "&vv escapes to heap$"
+			println(vv)
 		}()
 	}
 }
 
 func foo74() {
-	s := []int{3, 2, 1} // ERROR "\[\]int literal does not escape"
+	s := []int{3, 2, 1} // ERROR "foo74 \[\]int literal does not escape$"
 	for _, v := range s {
-		vv := v // ERROR "moved to heap: vv"
+		vv := v
 		// actually just escapes its scope
-		fn := func() { // ERROR "func literal escapes to heap"
-			println(vv) // ERROR "&vv escapes to heap"
+		fn := func() { // ERROR "func literal escapes to heap$"
+			println(vv)
+		}
+		defer fn()
+	}
+}
+
+func foo74a() {
+	s := []int{3, 2, 1} // ERROR "foo74a \[\]int literal does not escape$"
+	for _, v := range s {
+		vv := v // ERROR "moved to heap: vv$"
+		// actually just escapes its scope
+		fn := func() { // ERROR "func literal escapes to heap$"
+			vv += 1 // ERROR "&vv escapes to heap$"
+			println(vv)
 		}
 		defer fn()
 	}
@@ -548,110 +589,142 @@ func foo74() {
 // issue 3975
 func foo74b() {
 	var array [3]func()
-	s := []int{3, 2, 1} // ERROR "\[\]int literal does not escape"
+	s := []int{3, 2, 1} // ERROR "foo74b \[\]int literal does not escape$"
 	for i, v := range s {
-		vv := v // ERROR "moved to heap: vv"
+		vv := v
 		// actually just escapes its scope
-		array[i] = func() { // ERROR "func literal escapes to heap"
-			println(vv) // ERROR "&vv escapes to heap"
+		array[i] = func() { // ERROR "func literal escapes to heap$"
+			println(vv)
 		}
 	}
 }
 
-func myprint(y *int, x ...interface{}) *int { // ERROR "x does not escape" "leaking param: y"
+func foo74c() {
+	var array [3]func()
+	s := []int{3, 2, 1} // ERROR "foo74c \[\]int literal does not escape$"
+	for i, v := range s {
+		vv := v // ERROR "moved to heap: vv$"
+		// actually just escapes its scope
+		array[i] = func() { // ERROR "func literal escapes to heap$"
+			println(&vv) // ERROR "&vv escapes to heap$" "foo74c.func1 &vv does not escape$"
+		}
+	}
+}
+
+func myprint(y *int, x ...interface{}) *int { // ERROR "leaking param: y to result ~r2 level=0$" "myprint x does not escape$"
 	return y
 }
 
-func myprint1(y *int, x ...interface{}) *interface{} { // ERROR "y does not escape" "leaking param: x"
-	return &x[0] // ERROR "&x.0. escapes to heap"
+func myprint1(y *int, x ...interface{}) *interface{} { // ERROR "leaking param: x to result ~r2 level=0$" "myprint1 y does not escape$"
+	return &x[0] // ERROR "&x\[0\] escapes to heap$"
 }
 
-func foo75(z *int) { // ERROR "z does not escape"
-	myprint(z, 1, 2, 3) // ERROR "[.][.][.] argument does not escape"
+func foo75(z *int) { // ERROR "foo75 z does not escape$"
+	myprint(z, 1, 2, 3) // ERROR "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "foo75 ... argument does not escape$"
 }
 
-func foo75a(z *int) { // ERROR "z does not escape"
-	myprint1(z, 1, 2, 3) // ERROR "[.][.][.] argument does not escape"
+func foo75a(z *int) { // ERROR "foo75a z does not escape$"
+	myprint1(z, 1, 2, 3) // ERROR "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "foo75a ... argument does not escape$"
 }
 
-func foo75esc(z *int) { // ERROR "leaking param: z"
-	gxx = myprint(z, 1, 2, 3) // ERROR "[.][.][.] argument does not escape"
+func foo75esc(z *int) { // ERROR "leaking param: z$"
+	gxx = myprint(z, 1, 2, 3) // ERROR "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "foo75esc ... argument does not escape$"
 }
 
-func foo75aesc(z *int) { // ERROR "z does not escape"
+func foo75aesc(z *int) { // ERROR "foo75aesc z does not escape$"
 	var ppi **interface{}       // assignments to pointer dereferences lose track
-	*ppi = myprint1(z, 1, 2, 3) // ERROR "[.][.][.] argument escapes to heap"
+	*ppi = myprint1(z, 1, 2, 3) // ERROR "... argument escapes to heap$" "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$"
+}
+
+func foo75aesc1(z *int) { // ERROR "foo75aesc1 z does not escape$"
+	sink = myprint1(z, 1, 2, 3) // ERROR "... argument escapes to heap$" "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "myprint1\(z, 1, 2, 3\) escapes to heap$"
 }
 
-func foo76(z *int) { // ERROR "leaking param: z"
-	myprint(nil, z) // ERROR "[.][.][.] argument does not escape"
+// BAD: z does not escape here
+func foo76(z *int) { // ERROR "leaking param: z$"
+	myprint(nil, z) // ERROR "foo76 ... argument does not escape$" "z escapes to heap$"
 }
 
-func foo76a(z *int) { // ERROR "leaking param: z"
-	myprint1(nil, z) // ERROR "[.][.][.] argument does not escape"
+// BAD: z does not escape here
+func foo76a(z *int) { // ERROR "leaking param: z$"
+	myprint1(nil, z) // ERROR "foo76a ... argument does not escape$" "z escapes to heap$"
 }
 
 func foo76b() {
-	myprint(nil, 1, 2, 3) // ERROR "[.][.][.] argument does not escape"
+	myprint(nil, 1, 2, 3) // ERROR "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "foo76b ... argument does not escape$"
 }
 
 func foo76c() {
-	myprint1(nil, 1, 2, 3) // ERROR "[.][.][.] argument does not escape"
+	myprint1(nil, 1, 2, 3) // ERROR "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "foo76c ... argument does not escape$"
 }
 
 func foo76d() {
-	defer myprint(nil, 1, 2, 3) // ERROR "[.][.][.] argument does not escape"
+	defer myprint(nil, 1, 2, 3) // ERROR "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "foo76d ... argument does not escape$"
 }
 
 func foo76e() {
-	defer myprint1(nil, 1, 2, 3) // ERROR "[.][.][.] argument does not escape"
+	defer myprint1(nil, 1, 2, 3) // ERROR "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$" "foo76e ... argument does not escape$"
 }
 
 func foo76f() {
 	for {
 		// TODO: This one really only escapes its scope, but we don't distinguish yet.
-		defer myprint(nil, 1, 2, 3) // ERROR "[.][.][.] argument escapes to heap"
+		defer myprint(nil, 1, 2, 3) // ERROR "... argument escapes to heap$" "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$"
 	}
 }
 
 func foo76g() {
 	for {
-		defer myprint1(nil, 1, 2, 3) // ERROR "[.][.][.] argument escapes to heap"
+		defer myprint1(nil, 1, 2, 3) // ERROR "... argument escapes to heap$" "1 escapes to heap$" "2 escapes to heap$" "3 escapes to heap$"
 	}
 }
 
-func foo77(z []interface{}) { // ERROR "z does not escape"
+func foo77(z []interface{}) { // ERROR "foo77 z does not escape$"
 	myprint(nil, z...) // z does not escape
 }
 
-func foo77a(z []interface{}) { // ERROR "z does not escape"
+func foo77a(z []interface{}) { // ERROR "foo77a z does not escape$"
 	myprint1(nil, z...)
 }
 
-func foo77b(z []interface{}) { // ERROR "leaking param: z"
+func foo77b(z []interface{}) { // ERROR "leaking param: z$"
 	var ppi **interface{}
 	*ppi = myprint1(nil, z...)
 }
 
-func foo78(z int) *int { // ERROR "moved to heap: z"
-	return &z // ERROR "&z escapes to heap"
+func foo77c(z []interface{}) { // ERROR "leaking param: z$"
+	sink = myprint1(nil, z...) // ERROR "myprint1\(nil, z...\) escapes to heap$"
 }
 
-func foo78a(z int) *int { // ERROR "moved to heap: z"
-	y := &z   // ERROR "&z escapes to heap"
-	x := &y   // ERROR "&y does not escape"
+func dotdotdot() {
+	// BAD: i should not escape here
+	i := 0           // ERROR "moved to heap: i$"
+	myprint(nil, &i) // ERROR "&i escapes to heap$" "dotdotdot ... argument does not escape$"
+
+	// BAD: j should not escape here
+	j := 0            // ERROR "moved to heap: j$"
+	myprint1(nil, &j) // ERROR "&j escapes to heap$" "dotdotdot ... argument does not escape$"
+}
+
+func foo78(z int) *int { // ERROR "moved to heap: z$"
+	return &z // ERROR "&z escapes to heap$"
+}
+
+func foo78a(z int) *int { // ERROR "moved to heap: z$"
+	y := &z   // ERROR "&z escapes to heap$"
+	x := &y   // ERROR "foo78a &y does not escape$"
 	return *x // really return y
 }
 
 func foo79() *int {
-	return new(int) // ERROR "new[(]int[)] escapes to heap"
+	return new(int) // ERROR "new\(int\) escapes to heap$"
 }
 
 func foo80() *int {
 	var z *int
 	for {
 		// Really just escapes its scope but we don't distinguish
-		z = new(int) // ERROR "new[(]int[)] escapes to heap"
+		z = new(int) // ERROR "new\(int\) escapes to heap$"
 	}
 	_ = z
 	return nil
@@ -659,24 +732,24 @@ func foo80() *int {
 
 func foo81() *int {
 	for {
-		z := new(int) // ERROR "new[(]int[)] does not escape"
+		z := new(int) // ERROR "foo81 new\(int\) does not escape$"
 		_ = z
 	}
 	return nil
 }
 
-func tee(p *int) (x, y *int) { return p, p } // ERROR "leaking param"
+func tee(p *int) (x, y *int) { return p, p } // ERROR "leaking param: p to result x level=0$" "leaking param: p to result y level=0$"
 
-func noop(x, y *int) {} // ERROR "does not escape"
+func noop(x, y *int) {} // ERROR "noop x does not escape$" "noop y does not escape$"
 
 func foo82() {
-	var x, y, z int  // ERROR "moved to heap"
-	go noop(tee(&z)) // ERROR "&z escapes to heap"
-	go noop(&x, &y)  // ERROR "escapes to heap"
+	var x, y, z int  // ERROR "moved to heap: x$" "moved to heap: y$" "moved to heap: z$"
+	go noop(tee(&z)) // ERROR "&z escapes to heap$"
+	go noop(&x, &y)  // ERROR "&x escapes to heap$" "&y escapes to heap$"
 	for {
-		var u, v, w int     // ERROR "moved to heap"
-		defer noop(tee(&u)) // ERROR "&u escapes to heap"
-		defer noop(&v, &w)  // ERROR "escapes to heap"
+		var u, v, w int     // ERROR "moved to heap: u$" "moved to heap: v$" "moved to heap: w$"
+		defer noop(tee(&u)) // ERROR "&u escapes to heap$"
+		defer noop(&v, &w)  // ERROR "&v escapes to heap$" "&w escapes to heap$"
 	}
 }
 
@@ -689,24 +762,24 @@ type LimitedFooer struct {
 	N int64
 }
 
-func LimitFooer(r Fooer, n int64) Fooer { // ERROR "leaking param: r"
-	return &LimitedFooer{r, n} // ERROR "&LimitedFooer literal escapes to heap"
+func LimitFooer(r Fooer, n int64) Fooer { // ERROR "leaking param: r to result ~r2 level=-1$"
+	return &LimitedFooer{r, n} // ERROR "&LimitedFooer literal escapes to heap$"
 }
 
-func foo90(x *int) map[*int]*int { // ERROR "leaking param: x"
-	return map[*int]*int{nil: x} // ERROR "map\[\*int\]\*int literal escapes to heap"
+func foo90(x *int) map[*int]*int { // ERROR "leaking param: x$"
+	return map[*int]*int{nil: x} // ERROR "map\[\*int\]\*int literal escapes to heap$"
 }
 
-func foo91(x *int) map[*int]*int { // ERROR "leaking param: x"
-	return map[*int]*int{x: nil} // ERROR "map\[\*int\]\*int literal escapes to heap"
+func foo91(x *int) map[*int]*int { // ERROR "leaking param: x$"
+	return map[*int]*int{x: nil} // ERROR "map\[\*int\]\*int literal escapes to heap$"
 }
 
-func foo92(x *int) [2]*int { // ERROR "leaking param: x"
+func foo92(x *int) [2]*int { // ERROR "leaking param: x to result ~r1 level=0$"
 	return [2]*int{x, nil}
 }
 
 // does not leak c
-func foo93(c chan *int) *int { // ERROR "c does not escape"
+func foo93(c chan *int) *int { // ERROR "foo93 c does not escape$"
 	for v := range c {
 		return v
 	}
@@ -714,7 +787,7 @@ func foo93(c chan *int) *int { // ERROR "c does not escape"
 }
 
 // does not leak m
-func foo94(m map[*int]*int, b bool) *int { // ERROR "m does not escape"
+func foo94(m map[*int]*int, b bool) *int { // ERROR "leaking param: m to result ~r2 level=1"
 	for k, v := range m {
 		if b {
 			return k
@@ -725,32 +798,32 @@ func foo94(m map[*int]*int, b bool) *int { // ERROR "m does not escape"
 }
 
 // does leak x
-func foo95(m map[*int]*int, x *int) { // ERROR "m does not escape" "leaking param: x"
+func foo95(m map[*int]*int, x *int) { // ERROR "foo95 m does not escape$" "leaking param: x$"
 	m[x] = x
 }
 
-// does not leak m
-func foo96(m []*int) *int { // ERROR "m does not escape"
+// does not leak m but does leak content
+func foo96(m []*int) *int { // ERROR "leaking param: m to result ~r1 level=1"
 	return m[0]
 }
 
 // does leak m
-func foo97(m [1]*int) *int { // ERROR "leaking param: m"
+func foo97(m [1]*int) *int { // ERROR "leaking param: m to result ~r1 level=0$"
 	return m[0]
 }
 
 // does not leak m
-func foo98(m map[int]*int) *int { // ERROR "m does not escape"
+func foo98(m map[int]*int) *int { // ERROR "foo98 m does not escape$"
 	return m[0]
 }
 
 // does leak m
-func foo99(m *[1]*int) []*int { // ERROR "leaking param: m"
+func foo99(m *[1]*int) []*int { // ERROR "leaking param: m to result ~r1 level=0$"
 	return m[:]
 }
 
 // does not leak m
-func foo100(m []*int) *int { // ERROR "m does not escape"
+func foo100(m []*int) *int { // ERROR "leaking param: m to result ~r1 level=1"
 	for _, v := range m {
 		return v
 	}
@@ -758,7 +831,7 @@ func foo100(m []*int) *int { // ERROR "m does not escape"
 }
 
 // does leak m
-func foo101(m [1]*int) *int { // ERROR "leaking param: m"
+func foo101(m [1]*int) *int { // ERROR "leaking param: m to result ~r1 level=0$"
 	for _, v := range m {
 		return v
 	}
@@ -766,109 +839,109 @@ func foo101(m [1]*int) *int { // ERROR "leaking param: m"
 }
 
 // does not leak m
-func foo101a(m [1]*int) *int { // ERROR "m does not escape"
-	for i := range m { // ERROR "moved to heap: i"
-		return &i // ERROR "&i escapes to heap"
+func foo101a(m [1]*int) *int { // ERROR "foo101a m does not escape$"
+	for i := range m { // ERROR "moved to heap: i$"
+		return &i // ERROR "&i escapes to heap$"
 	}
 	return nil
 }
 
 // does leak x
-func foo102(m []*int, x *int) { // ERROR "m does not escape" "leaking param: x"
+func foo102(m []*int, x *int) { // ERROR "foo102 m does not escape$" "leaking param: x$"
 	m[0] = x
 }
 
 // does not leak x
-func foo103(m [1]*int, x *int) { // ERROR "m does not escape" "x does not escape"
+func foo103(m [1]*int, x *int) { // ERROR "foo103 m does not escape$" "foo103 x does not escape$"
 	m[0] = x
 }
 
 var y []*int
 
-// does not leak x
-func foo104(x []*int) { // ERROR "x does not escape"
+// does not leak x but does leak content
+func foo104(x []*int) { // ERROR "leaking param content: x"
 	copy(y, x)
 }
 
-// does not leak x
-func foo105(x []*int) { // ERROR "x does not escape"
+// does not leak x but does leak content
+func foo105(x []*int) { // ERROR "leaking param content: x"
 	_ = append(y, x...)
 }
 
 // does leak x
-func foo106(x *int) { // ERROR "leaking param: x"
+func foo106(x *int) { // ERROR "leaking param: x$"
 	_ = append(y, x)
 }
 
-func foo107(x *int) map[*int]*int { // ERROR "leaking param: x"
-	return map[*int]*int{x: nil} // ERROR "map.* literal escapes to heap"
+func foo107(x *int) map[*int]*int { // ERROR "leaking param: x$"
+	return map[*int]*int{x: nil} // ERROR "map\[\*int\]\*int literal escapes to heap$"
 }
 
-func foo108(x *int) map[*int]*int { // ERROR "leaking param: x"
-	return map[*int]*int{nil: x} // ERROR "map.* literal escapes to heap"
+func foo108(x *int) map[*int]*int { // ERROR "leaking param: x$"
+	return map[*int]*int{nil: x} // ERROR "map\[\*int\]\*int literal escapes to heap$"
 }
 
-func foo109(x *int) *int { // ERROR "leaking param: x"
-	m := map[*int]*int{x: nil} // ERROR "map.* literal does not escape"
+func foo109(x *int) *int { // ERROR "leaking param: x$"
+	m := map[*int]*int{x: nil} // ERROR "foo109 map\[\*int\]\*int literal does not escape$"
 	for k, _ := range m {
 		return k
 	}
 	return nil
 }
 
-func foo110(x *int) *int { // ERROR "leaking param: x"
-	m := map[*int]*int{nil: x} // ERROR "map.* literal does not escape"
+func foo110(x *int) *int { // ERROR "leaking param: x$"
+	m := map[*int]*int{nil: x} // ERROR "foo110 map\[\*int\]\*int literal does not escape$"
 	return m[nil]
 }
 
-func foo111(x *int) *int { // ERROR "leaking param: x"
-	m := []*int{x} // ERROR "\[\]\*int literal does not escape"
+func foo111(x *int) *int { // ERROR "leaking param: x to result ~r1 level=0"
+	m := []*int{x} // ERROR "foo111 \[\]\*int literal does not escape$"
 	return m[0]
 }
 
-func foo112(x *int) *int { // ERROR "leaking param: x"
+func foo112(x *int) *int { // ERROR "leaking param: x to result ~r1 level=0$"
 	m := [1]*int{x}
 	return m[0]
 }
 
-func foo113(x *int) *int { // ERROR "leaking param: x"
+func foo113(x *int) *int { // ERROR "leaking param: x to result ~r1 level=0$"
 	m := Bar{ii: x}
 	return m.ii
 }
 
-func foo114(x *int) *int { // ERROR "leaking param: x"
-	m := &Bar{ii: x} // ERROR "&Bar literal does not escape"
+func foo114(x *int) *int { // ERROR "leaking param: x to result ~r1 level=0$"
+	m := &Bar{ii: x} // ERROR "foo114 &Bar literal does not escape$"
 	return m.ii
 }
 
-func foo115(x *int) *int { // ERROR "leaking param: x"
+func foo115(x *int) *int { // ERROR "leaking param: x to result ~r1 level=0$"
 	return (*int)(unsafe.Pointer(uintptr(unsafe.Pointer(x)) + 1))
 }
 
 func foo116(b bool) *int {
 	if b {
-		x := 1    // ERROR "moved to heap: x"
-		return &x // ERROR "&x escapes to heap"
+		x := 1    // ERROR "moved to heap: x$"
+		return &x // ERROR "&x escapes to heap$"
 	} else {
-		y := 1    // ERROR "moved to heap: y"
-		return &y // ERROR "&y escapes to heap"
+		y := 1    // ERROR "moved to heap: y$"
+		return &y // ERROR "&y escapes to heap$"
 	}
 	return nil
 }
 
-func foo117(unknown func(interface{})) { // ERROR "unknown does not escape"
-	x := 1      // ERROR "moved to heap: x"
-	unknown(&x) // ERROR "&x escapes to heap"
+func foo117(unknown func(interface{})) { // ERROR "foo117 unknown does not escape$"
+	x := 1      // ERROR "moved to heap: x$"
+	unknown(&x) // ERROR "&x escapes to heap$"
 }
 
-func foo118(unknown func(*int)) { // ERROR "unknown does not escape"
-	x := 1      // ERROR "moved to heap: x"
-	unknown(&x) // ERROR "&x escapes to heap"
+func foo118(unknown func(*int)) { // ERROR "foo118 unknown does not escape$"
+	x := 1      // ERROR "moved to heap: x$"
+	unknown(&x) // ERROR "&x escapes to heap$"
 }
 
 func external(*int)
 
-func foo119(x *int) { // ERROR "leaking param: x"
+func foo119(x *int) { // ERROR "leaking param: x$"
 	external(x)
 }
 
@@ -1079,16 +1152,16 @@ L100:
 
 func foo121() {
 	for i := 0; i < 10; i++ {
-		defer myprint(nil, i) // ERROR "[.][.][.] argument escapes to heap"
-		go myprint(nil, i)    // ERROR "[.][.][.] argument escapes to heap"
+		defer myprint(nil, i) // ERROR "... argument escapes to heap$" "i escapes to heap$"
+		go myprint(nil, i)    // ERROR "... argument escapes to heap$" "i escapes to heap$"
 	}
 }
 
 // same as foo121 but check across import
 func foo121b() {
 	for i := 0; i < 10; i++ {
-		defer fmt.Printf("%d", i) // ERROR "[.][.][.] argument escapes to heap"
-		go fmt.Printf("%d", i)    // ERROR "[.][.][.] argument escapes to heap"
+		defer fmt.Printf("%d", i) // ERROR "... argument escapes to heap$" "i escapes to heap$"
+		go fmt.Printf("%d", i)    // ERROR "... argument escapes to heap$" "i escapes to heap$"
 	}
 }
 
@@ -1098,7 +1171,7 @@ func foo122() {
 
 	goto L1
 L1:
-	i = new(int) // ERROR "new.int. does not escape"
+	i = new(int) // ERROR "foo122 new\(int\) does not escape$"
 	_ = i
 }
 
@@ -1107,25 +1180,25 @@ func foo123() {
 	var i *int
 
 L1:
-	i = new(int) // ERROR "new.int. escapes to heap"
+	i = new(int) // ERROR "new\(int\) escapes to heap$"
 
 	goto L1
 	_ = i
 }
 
-func foo124(x **int) { // ERROR "x does not escape"
-	var i int // ERROR "moved to heap: i"
-	p := &i   // ERROR "&i escapes"
-	func() {  // ERROR "func literal does not escape"
-		*x = p // ERROR "leaking closure reference p"
+func foo124(x **int) { // ERROR "foo124 x does not escape$"
+	var i int // ERROR "moved to heap: i$"
+	p := &i   // ERROR "&i escapes to heap$"
+	func() {  // ERROR "foo124 func literal does not escape$"
+		*x = p // ERROR "leaking closure reference p$"
 	}()
 }
 
-func foo125(ch chan *int) { // ERROR "does not escape"
-	var i int // ERROR "moved to heap"
-	p := &i   // ERROR "&i escapes to heap"
-	func() {  // ERROR "func literal does not escape"
-		ch <- p // ERROR "leaking closure reference p"
+func foo125(ch chan *int) { // ERROR "foo125 ch does not escape$"
+	var i int // ERROR "moved to heap: i$"
+	p := &i   // ERROR "&i escapes to heap$"
+	func() {  // ERROR "foo125 func literal does not escape$"
+		ch <- p // ERROR "leaking closure reference p$"
 	}()
 }
 
@@ -1133,9 +1206,9 @@ func foo126() {
 	var px *int // loopdepth 0
 	for {
 		// loopdepth 1
-		var i int // ERROR "moved to heap"
-		func() {  // ERROR "func literal does not escape"
-			px = &i // ERROR "&i escapes"
+		var i int // ERROR "moved to heap: i$"
+		func() {  // ERROR "foo126 func literal does not escape$"
+			px = &i // ERROR "&i escapes to heap$"
 		}()
 	}
 	_ = px
@@ -1144,26 +1217,26 @@ func foo126() {
 var px *int
 
 func foo127() {
-	var i int // ERROR "moved to heap: i"
-	p := &i   // ERROR "&i escapes to heap"
+	var i int // ERROR "moved to heap: i$"
+	p := &i   // ERROR "&i escapes to heap$"
 	q := p
 	px = q
 }
 
 func foo128() {
 	var i int
-	p := &i // ERROR "&i does not escape"
+	p := &i // ERROR "foo128 &i does not escape$"
 	q := p
 	_ = q
 }
 
 func foo129() {
-	var i int // ERROR "moved to heap: i"
-	p := &i   // ERROR "&i escapes to heap"
-	func() {  // ERROR "func literal does not escape"
-		q := p   // ERROR "leaking closure reference p"
-		func() { // ERROR "func literal does not escape"
-			r := q // ERROR "leaking closure reference q"
+	var i int // ERROR "moved to heap: i$"
+	p := &i   // ERROR "&i escapes to heap$"
+	func() {  // ERROR "foo129 func literal does not escape$"
+		q := p   // ERROR "leaking closure reference p$"
+		func() { // ERROR "foo129.func1 func literal does not escape$"
+			r := q // ERROR "leaking closure reference q$"
 			px = r
 		}()
 	}()
@@ -1171,40 +1244,40 @@ func foo129() {
 
 func foo130() {
 	for {
-		var i int // ERROR "moved to heap"
-		func() {  // ERROR "func literal does not escape"
-			px = &i // ERROR "&i escapes" "leaking closure reference i"
+		var i int // ERROR "moved to heap: i$"
+		func() {  // ERROR "foo130 func literal does not escape$"
+			px = &i // ERROR "&i escapes to heap$" "leaking closure reference i$"
 		}()
 	}
 }
 
 func foo131() {
-	var i int // ERROR "moved to heap"
-	func() {  // ERROR "func literal does not escape"
-		px = &i // ERROR "&i escapes" "leaking closure reference i"
+	var i int // ERROR "moved to heap: i$"
+	func() {  // ERROR "foo131 func literal does not escape$"
+		px = &i // ERROR "&i escapes to heap$" "leaking closure reference i$"
 	}()
 }
 
 func foo132() {
-	var i int   // ERROR "moved to heap"
-	go func() { // ERROR "func literal escapes to heap"
-		px = &i // ERROR "&i escapes" "leaking closure reference i"
+	var i int   // ERROR "moved to heap: i$"
+	go func() { // ERROR "func literal escapes to heap$"
+		px = &i // ERROR "&i escapes to heap$" "leaking closure reference i$"
 	}()
 }
 
 func foo133() {
-	var i int      // ERROR "moved to heap"
-	defer func() { // ERROR "func literal does not escape"
-		px = &i // ERROR "&i escapes" "leaking closure reference i"
+	var i int      // ERROR "moved to heap: i$"
+	defer func() { // ERROR "foo133 func literal does not escape$"
+		px = &i // ERROR "&i escapes to heap$" "leaking closure reference i$"
 	}()
 }
 
 func foo134() {
 	var i int
-	p := &i  // ERROR "&i does not escape"
-	func() { // ERROR "func literal does not escape"
+	p := &i  // ERROR "foo134 &i does not escape$"
+	func() { // ERROR "foo134 func literal does not escape$"
 		q := p
-		func() { // ERROR "func literal does not escape"
+		func() { // ERROR "foo134.func1 func literal does not escape$"
 			r := q
 			_ = r
 		}()
@@ -1212,11 +1285,11 @@ func foo134() {
 }
 
 func foo135() {
-	var i int   // ERROR "moved to heap: i"
-	p := &i     // ERROR "&i escapes to heap" "moved to heap: p"
-	go func() { // ERROR "func literal escapes to heap"
-		q := p   // ERROR "&p escapes to heap"
-		func() { // ERROR "func literal does not escape"
+	var i int   // ERROR "moved to heap: i$"
+	p := &i     // ERROR "&i escapes to heap$"
+	go func() { // ERROR "func literal escapes to heap$"
+		q := p
+		func() { // ERROR "foo135.func1 func literal does not escape$"
 			r := q
 			_ = r
 		}()
@@ -1224,24 +1297,24 @@ func foo135() {
 }
 
 func foo136() {
-	var i int   // ERROR "moved to heap: i"
-	p := &i     // ERROR "&i escapes to heap" "moved to heap: p"
-	go func() { // ERROR "func literal escapes to heap"
-		q := p   // ERROR "&p escapes to heap" "leaking closure reference p"
-		func() { // ERROR "func literal does not escape"
-			r := q // ERROR "leaking closure reference q"
+	var i int   // ERROR "moved to heap: i$"
+	p := &i     // ERROR "&i escapes to heap$"
+	go func() { // ERROR "func literal escapes to heap$"
+		q := p   // ERROR "leaking closure reference p$"
+		func() { // ERROR "foo136.func1 func literal does not escape$"
+			r := q // ERROR "leaking closure reference q$"
 			px = r
 		}()
 	}()
 }
 
 func foo137() {
-	var i int // ERROR "moved to heap: i"
-	p := &i   // ERROR "&i escapes to heap"
-	func() {  // ERROR "func literal does not escape"
-		q := p      // ERROR "leaking closure reference p" "moved to heap: q"
-		go func() { // ERROR "func literal escapes to heap"
-			r := q // ERROR "&q escapes to heap"
+	var i int // ERROR "moved to heap: i$"
+	p := &i   // ERROR "&i escapes to heap$"
+	func() {  // ERROR "foo137 func literal does not escape$"
+		q := p      // ERROR "leaking closure reference p$"
+		go func() { // ERROR "func literal escapes to heap$"
+			r := q
 			_ = r
 		}()
 	}()
@@ -1251,8 +1324,8 @@ func foo138() *byte {
 	type T struct {
 		x [1]byte
 	}
-	t := new(T)    // ERROR "new.T. escapes to heap"
-	return &t.x[0] // ERROR "&t.x.0. escapes to heap"
+	t := new(T)    // ERROR "new\(T\) escapes to heap$"
+	return &t.x[0] // ERROR "&t.x\[0\] escapes to heap$"
 }
 
 func foo139() *byte {
@@ -1261,8 +1334,8 @@ func foo139() *byte {
 			y byte
 		}
 	}
-	t := new(T)   // ERROR "new.T. escapes to heap"
-	return &t.x.y // ERROR "&t.x.y escapes to heap"
+	t := new(T)   // ERROR "new\(T\) escapes to heap$"
+	return &t.x.y // ERROR "&t.x.y escapes to heap$"
 }
 
 // issue 4751
@@ -1274,8 +1347,8 @@ func foo140() interface{} {
 		X string
 		T *T
 	}
-	t := &T{} // ERROR "&T literal escapes to heap"
-	return U{
+	t := &T{} // ERROR "&T literal escapes to heap$"
+	return U{ // ERROR "U literal escapes to heap$"
 		X: t.X,
 		T: t,
 	}
@@ -1289,53 +1362,53 @@ func F2([]byte)
 
 //go:noescape
 
-func F3(x []byte) // ERROR "F3 x does not escape"
+func F3(x []byte) // ERROR "F3 x does not escape$"
 
 func F4(x []byte)
 
 func G() {
 	var buf1 [10]byte
-	F1(buf1[:]) // ERROR "buf1 does not escape"
+	F1(buf1[:]) // ERROR "G buf1 does not escape$"
 
-	var buf2 [10]byte // ERROR "moved to heap: buf2"
-	F2(buf2[:])       // ERROR "buf2 escapes to heap"
+	var buf2 [10]byte // ERROR "moved to heap: buf2$"
+	F2(buf2[:])       // ERROR "buf2 escapes to heap$"
 
 	var buf3 [10]byte
-	F3(buf3[:]) // ERROR "buf3 does not escape"
+	F3(buf3[:]) // ERROR "G buf3 does not escape$"
 
-	var buf4 [10]byte // ERROR "moved to heap: buf4"
-	F4(buf4[:])       // ERROR "buf4 escapes to heap"
+	var buf4 [10]byte // ERROR "moved to heap: buf4$"
+	F4(buf4[:])       // ERROR "buf4 escapes to heap$"
 }
 
 type Tm struct {
 	x int
 }
 
-func (t *Tm) M() { // ERROR "t does not escape"
+func (t *Tm) M() { // ERROR "\(\*Tm\).M t does not escape$"
 }
 
 func foo141() {
 	var f func()
 
-	t := new(Tm) // ERROR "escapes to heap"
-	f = t.M      // ERROR "t.M does not escape"
+	t := new(Tm) // ERROR "new\(Tm\) escapes to heap$"
+	f = t.M      // ERROR "foo141 t.M does not escape$"
 	_ = f
 }
 
 var gf func()
 
 func foo142() {
-	t := new(Tm) // ERROR "escapes to heap"
-	gf = t.M     // ERROR "t.M escapes to heap"
+	t := new(Tm) // ERROR "new\(Tm\) escapes to heap$"
+	gf = t.M     // ERROR "t.M escapes to heap$"
 }
 
 // issue 3888.
 func foo143() {
 	for i := 0; i < 1000; i++ {
-		func() { // ERROR "func literal does not escape"
+		func() { // ERROR "foo143 func literal does not escape$"
 			for i := 0; i < 1; i++ {
 				var t Tm
-				t.M() // ERROR "t does not escape"
+				t.M() // ERROR "foo143.func1 t does not escape$"
 			}
 		}()
 	}
@@ -1351,9 +1424,9 @@ func foo144a(*int)
 
 func foo144() {
 	var x int
-	foo144a(&x) // ERROR "&x does not escape"
+	foo144a(&x) // ERROR "foo144 &x does not escape$"
 	var y int
-	foo144b(&y) // ERROR "&y does not escape"
+	foo144b(&y) // ERROR "foo144 &y does not escape$"
 }
 
 //go:noescape
@@ -1366,38 +1439,38 @@ type List struct {
 	Next *List
 }
 
-func foo145(l List) { // ERROR "l does not escape"
+func foo145(l List) { // ERROR "foo145 l does not escape$"
 	var p *List
-	for p = &l; p.Next != nil; p = p.Next { // ERROR "&l does not escape"
+	for p = &l; p.Next != nil; p = p.Next { // ERROR "foo145 &l does not escape$"
 	}
 }
 
-func foo146(l List) { // ERROR "l does not escape"
+func foo146(l List) { // ERROR "foo146 l does not escape$"
 	var p *List
-	p = &l // ERROR "&l does not escape"
+	p = &l // ERROR "foo146 &l does not escape$"
 	for ; p.Next != nil; p = p.Next {
 	}
 }
 
-func foo147(l List) { // ERROR "l does not escape"
+func foo147(l List) { // ERROR "foo147 l does not escape$"
 	var p *List
-	p = &l // ERROR "&l does not escape"
+	p = &l // ERROR "foo147 &l does not escape$"
 	for p.Next != nil {
 		p = p.Next
 	}
 }
 
-func foo148(l List) { // ERROR " l does not escape"
-	for p := &l; p.Next != nil; p = p.Next { // ERROR "&l does not escape"
+func foo148(l List) { // ERROR "foo148 l does not escape$"
+	for p := &l; p.Next != nil; p = p.Next { // ERROR "foo148 &l does not escape$"
 	}
 }
 
 // related: address of variable should have depth of variable, not of loop
 
-func foo149(l List) { // ERROR " l does not escape"
+func foo149(l List) { // ERROR "foo149 l does not escape$"
 	var p *List
 	for {
-		for p = &l; p.Next != nil; p = p.Next { // ERROR "&l does not escape"
+		for p = &l; p.Next != nil; p = p.Next { // ERROR "foo149 &l does not escape$"
 		}
 	}
 }
@@ -1406,44 +1479,44 @@ func foo149(l List) { // ERROR " l does not escape"
 
 var save150 []byte
 
-func foo150(x ...byte) { // ERROR "leaking param: x"
+func foo150(x ...byte) { // ERROR "leaking param: x$"
 	save150 = x
 }
 
 func bar150() {
-	foo150(1, 2, 3) // ERROR "[.][.][.] argument escapes to heap"
+	foo150(1, 2, 3) // ERROR "... argument escapes to heap$"
 }
 
 // issue 7931: bad handling of slice of array
 
 var save151 *int
 
-func foo151(x *int) { // ERROR "leaking param: x"
+func foo151(x *int) { // ERROR "leaking param: x$"
 	save151 = x
 }
 
 func bar151() {
-	var a [64]int // ERROR "moved to heap: a"
+	var a [64]int // ERROR "moved to heap: a$"
 	a[4] = 101
-	foo151(&(&a)[4:8][0]) // ERROR "&\(&a\)\[4:8\]\[0\] escapes to heap" "&a escapes to heap"
+	foo151(&(&a)[4:8][0]) // ERROR "&\(&a\)\[4:8\]\[0\] escapes to heap$" "&a escapes to heap$"
 }
 
 func bar151b() {
-	var a [10]int      // ERROR "moved to heap: a"
-	b := a[:]          // ERROR "a escapes to heap"
-	foo151(&b[4:8][0]) // ERROR "&b\[4:8\]\[0\] escapes to heap"
+	var a [10]int      // ERROR "moved to heap: a$"
+	b := a[:]          // ERROR "a escapes to heap$"
+	foo151(&b[4:8][0]) // ERROR "&b\[4:8\]\[0\] escapes to heap$"
 }
 
 func bar151c() {
-	var a [64]int // ERROR "moved to heap: a"
+	var a [64]int // ERROR "moved to heap: a$"
 	a[4] = 101
-	foo151(&(&a)[4:8:8][0]) // ERROR "&\(&a\)\[4:8:8\]\[0\] escapes to heap" "&a escapes to heap"
+	foo151(&(&a)[4:8:8][0]) // ERROR "&\(&a\)\[4:8:8\]\[0\] escapes to heap$" "&a escapes to heap$"
 }
 
 func bar151d() {
-	var a [10]int        // ERROR "moved to heap: a"
-	b := a[:]            // ERROR "a escapes to heap"
-	foo151(&b[4:8:8][0]) // ERROR "&b\[4:8:8\]\[0\] escapes to heap"
+	var a [10]int        // ERROR "moved to heap: a$"
+	b := a[:]            // ERROR "a escapes to heap$"
+	foo151(&b[4:8:8][0]) // ERROR "&b\[4:8:8\]\[0\] escapes to heap$"
 }
 
 // issue 8120
@@ -1452,7 +1525,7 @@ type U struct {
 	s *string
 }
 
-func (u *U) String() *string { // ERROR "leaking param u content to result ~r0"
+func (u *U) String() *string { // ERROR "leaking param: u to result ~r0 level=1$"
 	return u.s
 }
 
@@ -1460,35 +1533,298 @@ type V struct {
 	s *string
 }
 
-func NewV(u U) *V { // ERROR "leaking param: u"
-	return &V{u.String()} // ERROR "&V literal escapes to heap" "u does not escape"
+// BAD -- level of leak ought to be 0
+func NewV(u U) *V { // ERROR "leaking param: u to result ~r1 level=-1"
+	return &V{u.String()} // ERROR "&V literal escapes to heap$" "NewV u does not escape"
 }
 
 func foo152() {
-	a := "a"   // ERROR "moved to heap: a"
-	u := U{&a} // ERROR "&a escapes to heap"
+	a := "a"   // ERROR "moved to heap: a$"
+	u := U{&a} // ERROR "&a escapes to heap$"
 	v := NewV(u)
 	println(v)
 }
 
 // issue 8176 - &x in type switch body not marked as escaping
 
-func foo153(v interface{}) *int { // ERROR "leaking param: v"
+func foo153(v interface{}) *int { // ERROR "leaking param: v to result ~r1 level=-1$"
 	switch x := v.(type) {
-	case int: // ERROR "moved to heap: x"
-		return &x // ERROR "&x escapes to heap"
+	case int: // ERROR "moved to heap: x$"
+		return &x // ERROR "&x escapes to heap$"
 	}
 	panic(0)
 }
 
 // issue 8185 - &result escaping into result
 
-func f() (x int, y *int) { // ERROR "moved to heap: x"
-	y = &x // ERROR "&x escapes to heap"
+func f() (x int, y *int) { // ERROR "moved to heap: x$"
+	y = &x // ERROR "&x escapes to heap$"
 	return
 }
 
-func g() (x interface{}) { // ERROR "moved to heap: x"
-	x = &x // ERROR "&x escapes to heap"
+func g() (x interface{}) { // ERROR "moved to heap: x$"
+	x = &x // ERROR "&x escapes to heap$"
 	return
 }
+
+var sink interface{}
+
+type Lit struct {
+	p *int
+}
+
+func ptrlitNoescape() {
+	// Both literal and element do not escape.
+	i := 0
+	x := &Lit{&i} // ERROR "ptrlitNoescape &Lit literal does not escape$" "ptrlitNoescape &i does not escape$"
+	_ = x
+}
+
+func ptrlitNoEscape2() {
+	// Literal does not escape, but element does.
+	i := 0        // ERROR "moved to heap: i$"
+	x := &Lit{&i} // ERROR "&i escapes to heap$" "ptrlitNoEscape2 &Lit literal does not escape$"
+	sink = *x     // ERROR "\*x escapes to heap$"
+}
+
+func ptrlitEscape() {
+	// Both literal and element escape.
+	i := 0        // ERROR "moved to heap: i$"
+	x := &Lit{&i} // ERROR "&Lit literal escapes to heap$" "&i escapes to heap$"
+	sink = x      // ERROR "x escapes to heap$"
+}
+
+// self-assignments
+
+type Buffer struct {
+	arr  [64]byte
+	buf1 []byte
+	buf2 []byte
+	str1 string
+	str2 string
+}
+
+func (b *Buffer) foo() { // ERROR "\(\*Buffer\).foo b does not escape$"
+	b.buf1 = b.buf1[1:2]   // ERROR "\(\*Buffer\).foo ignoring self-assignment to b.buf1$"
+	b.buf1 = b.buf1[1:2:3] // ERROR "\(\*Buffer\).foo ignoring self-assignment to b.buf1$"
+	b.buf1 = b.buf2[1:2]   // ERROR "\(\*Buffer\).foo ignoring self-assignment to b.buf1$"
+	b.buf1 = b.buf2[1:2:3] // ERROR "\(\*Buffer\).foo ignoring self-assignment to b.buf1$"
+}
+
+func (b *Buffer) bar() { // ERROR "leaking param: b$"
+	b.buf1 = b.arr[1:2] // ERROR "b.arr escapes to heap$"
+}
+
+func (b *Buffer) baz() { // ERROR "\(\*Buffer\).baz b does not escape$"
+	b.str1 = b.str1[1:2] // ERROR "\(\*Buffer\).baz ignoring self-assignment to b.str1$"
+	b.str1 = b.str2[1:2] // ERROR "\(\*Buffer\).baz ignoring self-assignment to b.str1$"
+}
+
+func (b *Buffer) bat() { // ERROR "leaking param content: b$"
+	o := new(Buffer) // ERROR "new\(Buffer\) escapes to heap$"
+	o.buf1 = b.buf1[1:2]
+	sink = o // ERROR "o escapes to heap$"
+}
+
+func quux(sp *string, bp *[]byte) { // ERROR "quux bp does not escape$" "quux sp does not escape$"
+	*sp = (*sp)[1:2] // ERROR "quux ignoring self-assignment to \*sp$"
+	*bp = (*bp)[1:2] // ERROR "quux ignoring self-assignment to \*bp$"
+}
+
+type StructWithString struct {
+	p *int
+	s string
+}
+
+// This is escape analysis false negative.
+// We assign the pointer to x.p but leak x.s. Escape analysis coarsens flows
+// to just x, and thus &i looks escaping.
+func fieldFlowTracking() {
+	var x StructWithString
+	i := 0     // ERROR "moved to heap: i$"
+	x.p = &i   // ERROR "&i escapes to heap$"
+	sink = x.s // ERROR "x.s escapes to heap$"
+}
+
+// String operations.
+
+func slicebytetostring0() {
+	b := make([]byte, 20) // ERROR "slicebytetostring0 make\(\[\]byte, 20\) does not escape$"
+	s := string(b)        // ERROR "slicebytetostring0 string\(b\) does not escape$"
+	_ = s
+}
+
+func slicebytetostring1() {
+	b := make([]byte, 20) // ERROR "slicebytetostring1 make\(\[\]byte, 20\) does not escape$"
+	s := string(b)        // ERROR "slicebytetostring1 string\(b\) does not escape$"
+	s1 := s[0:1]
+	_ = s1
+}
+
+func slicebytetostring2() {
+	b := make([]byte, 20) // ERROR "slicebytetostring2 make\(\[\]byte, 20\) does not escape$"
+	s := string(b)        // ERROR "string\(b\) escapes to heap$"
+	s1 := s[0:1]          // ERROR "moved to heap: s1$"
+	sink = &s1            // ERROR "&s1 escapes to heap$"
+}
+
+func slicebytetostring3() {
+	b := make([]byte, 20) // ERROR "slicebytetostring3 make\(\[\]byte, 20\) does not escape$"
+	s := string(b)        // ERROR "string\(b\) escapes to heap$"
+	s1 := s[0:1]
+	sink = s1 // ERROR "s1 escapes to heap$"
+}
+
+func addstr0() {
+	s0 := "a"
+	s1 := "b"
+	s := s0 + s1 // ERROR "addstr0 s0 \+ s1 does not escape$"
+	_ = s
+}
+
+func addstr1() {
+	s0 := "a"
+	s1 := "b"
+	s := "c"
+	s += s0 + s1 // ERROR "addstr1 s0 \+ s1 does not escape$"
+	_ = s
+}
+
+func addstr2() {
+	b := make([]byte, 20) // ERROR "addstr2 make\(\[\]byte, 20\) does not escape$"
+	s0 := "a"
+	s := string(b) + s0 // ERROR "addstr2 string\(b\) \+ s0 does not escape$" "addstr2 string\(b\) does not escape$"
+	_ = s
+}
+
+func addstr3() {
+	s0 := "a"
+	s1 := "b"
+	s := s0 + s1 // ERROR "s0 \+ s1 escapes to heap$"
+	s2 := s[0:1]
+	sink = s2 // ERROR "s2 escapes to heap$"
+}
+
+func intstring0() bool {
+	// string does not escape
+	x := '0'
+	s := string(x) // ERROR "intstring0 string\(x\) does not escape$"
+	return s == "0"
+}
+
+func intstring1() string {
+	// string does not escape, but the buffer does
+	x := '0'
+	s := string(x) // ERROR "string\(x\) escapes to heap$"
+	return s
+}
+
+func intstring2() {
+	// string escapes to heap
+	x := '0'
+	s := string(x) // ERROR "moved to heap: s$" "string\(x\) escapes to heap$"
+	sink = &s      // ERROR "&s escapes to heap$"
+}
+
+func stringtoslicebyte0() {
+	s := "foo"
+	x := []byte(s) // ERROR "stringtoslicebyte0 \(\[\]byte\)\(s\) does not escape$"
+	_ = x
+}
+
+func stringtoslicebyte1() []byte {
+	s := "foo"
+	return []byte(s) // ERROR "\(\[\]byte\)\(s\) escapes to heap$"
+}
+
+func stringtoslicebyte2() {
+	s := "foo"
+	sink = []byte(s) // ERROR "\(\[\]byte\)\(s\) escapes to heap$"
+}
+
+func stringtoslicerune0() {
+	s := "foo"
+	x := []rune(s) // ERROR "stringtoslicerune0 \(\[\]rune\)\(s\) does not escape$"
+	_ = x
+}
+
+func stringtoslicerune1() []rune {
+	s := "foo"
+	return []rune(s) // ERROR "\(\[\]rune\)\(s\) escapes to heap$"
+}
+
+func stringtoslicerune2() {
+	s := "foo"
+	sink = []rune(s) // ERROR "\(\[\]rune\)\(s\) escapes to heap$"
+}
+
+func slicerunetostring0() {
+	r := []rune{1, 2, 3} // ERROR "slicerunetostring0 \[\]rune literal does not escape$"
+	s := string(r)       // ERROR "slicerunetostring0 string\(r\) does not escape$"
+	_ = s
+}
+
+func slicerunetostring1() string {
+	r := []rune{1, 2, 3} // ERROR "slicerunetostring1 \[\]rune literal does not escape$"
+	return string(r)     // ERROR "string\(r\) escapes to heap$"
+}
+
+func slicerunetostring2() {
+	r := []rune{1, 2, 3} // ERROR "slicerunetostring2 \[\]rune literal does not escape$"
+	sink = string(r)     // ERROR "string\(r\) escapes to heap$"
+}
+
+func makemap0() {
+	m := make(map[int]int) // ERROR "makemap0 make\(map\[int\]int\) does not escape$"
+	m[0] = 0
+	m[1]++
+	delete(m, 1)
+	sink = m[0] // ERROR "m\[0\] escapes to heap$"
+}
+
+func makemap1() map[int]int {
+	return make(map[int]int) // ERROR "make\(map\[int\]int\) escapes to heap$"
+}
+
+func makemap2() {
+	m := make(map[int]int) // ERROR "make\(map\[int\]int\) escapes to heap$"
+	sink = m               // ERROR "m escapes to heap$"
+}
+
+func nonescapingEface(m map[interface{}]bool) bool { // ERROR "nonescapingEface m does not escape$"
+	return m["foo"] // ERROR "nonescapingEface .foo. does not escape$"
+}
+
+func nonescapingIface(m map[M]bool) bool { // ERROR "nonescapingIface m does not escape$"
+	return m[MV(0)] // ERROR "nonescapingIface MV\(0\) does not escape$"
+}
+
+func issue10353() {
+	x := new(int) // ERROR "new\(int\) escapes to heap$"
+	issue10353a(x)()
+}
+
+func issue10353a(x *int) func() { // ERROR "leaking param: x to result ~r1 level=-1$"
+	return func() { // ERROR "func literal escapes to heap$"
+		println(*x)
+	}
+}
+
+func issue10353b() {
+	var f func()
+	for {
+		x := new(int) // ERROR "new\(int\) escapes to heap$"
+		f = func() {  // ERROR "func literal escapes to heap$"
+			println(*x)
+		}
+	}
+	_ = f
+}
+
+func issue11387(x int) func() int {
+	f := func() int { return x }    // ERROR "func literal escapes to heap"
+	slice1 := []func() int{f}       // ERROR "\[\].* does not escape"
+	slice2 := make([]func() int, 1) // ERROR "make\(.*\) does not escape"
+	copy(slice2, slice1)
+	return slice2[0]
+}