// errorcheckwithauto -0 -l -live -wb=0 -d=ssa/insert_resched_checks/off
-// +build !ppc64,!ppc64le
+
+//go:build !ppc64 && !ppc64le && !goexperiment.regabiargs
+
// ppc64 needs a better tighten pass to make f18 pass
// rescheduling checks need to be turned off because there are some live variables across the inserted check call
+//
+// For register ABI, liveness info changes slightly. See live_regabi.go.
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
func f9() bool {
g8()
x := i9
- y := interface{}(str()) // ERROR "live at call to convT2Estring: x.data$" "live at call to str: x.data$" "stack object .autotmp_[0-9]+ string$"
- i9 = y // make y escape so the line above has to call convT2E
+ y := interface{}(g18()) // ERROR "live at call to convT: x.data$" "live at call to g18: x.data$" "stack object .autotmp_[0-9]+ \[2\]string$"
+ i9 = y // make y escape so the line above has to call convT
return x != y
}
// this used to have a spurious "live at entry to f11a: ~r0"
func f11a() *int {
- select { // ERROR "stack object .autotmp_[0-9]+ \[2\]struct"
+ select { // ERROR "stack object .autotmp_[0-9]+ \[2\]runtime.scase$"
case <-c:
return nil
case <-c:
// get to the bottom of the function.
// This used to have a spurious "live at call to printint: p".
printint(1) // nothing live here!
- select { // ERROR "stack object .autotmp_[0-9]+ \[2\]struct"
+ select { // ERROR "stack object .autotmp_[0-9]+ \[2\]runtime.scase$"
case <-c:
return nil
case <-c:
// Unlike previous, the cases in this select fall through,
// so we can get to the println, so p is not dead.
printint(1) // ERROR "live at call to printint: p$"
- select { // ERROR "live at call to selectgo: p$" "stack object .autotmp_[0-9]+ \[2\]struct"
+ select { // ERROR "live at call to selectgo: p$" "stack object .autotmp_[0-9]+ \[2\]runtime.scase$"
case <-c:
case <-c:
}
if b {
delete(mi, iface()) // ERROR "stack object .autotmp_[0-9]+ interface \{\}$"
}
- delete(mi, iface()) // ERROR "stack object .autotmp_[0-9]+ interface \{\}$"
- delete(mi, iface()) // ERROR "stack object .autotmp_[0-9]+ interface \{\}$"
+ delete(mi, iface())
+ delete(mi, iface())
}
var m2s map[string]*byte
if b {
z = m2[g18()] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
}
- z = m2[g18()] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
- z = m2[g18()] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
+ z = m2[g18()]
+ z = m2[g18()]
printbytepointer(z)
}
if b {
z = <-ch // ERROR "stack object .autotmp_[0-9]+ \*byte$"
}
- z = <-ch // ERROR "stack object .autotmp_[0-9]+ \*byte$"
- z = <-ch // ERROR "stack object .autotmp_[0-9]+ \*byte$" "live at call to chanrecv1: .autotmp_[0-9]+$"
+ z = <-ch
+ z = <-ch // ERROR "live at call to chanrecv1: .autotmp_[0-9]+$"
printbytepointer(z)
}
if b {
ch <- byteptr() // ERROR "stack object .autotmp_[0-9]+ \*byte$"
}
- ch <- byteptr() // ERROR "stack object .autotmp_[0-9]+ \*byte$"
- ch <- byteptr() // ERROR "stack object .autotmp_[0-9]+ \*byte$"
+ ch <- byteptr()
+ ch <- byteptr()
}
func f21() {
if b {
z = m2[[2]string{"x", "y"}] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
}
- z = m2[[2]string{"x", "y"}] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
- z = m2[[2]string{"x", "y"}] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
+ z = m2[[2]string{"x", "y"}]
+ z = m2[[2]string{"x", "y"}]
printbytepointer(z)
}
if b {
z, ok = m2[[2]string{"x", "y"}] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
}
- z, ok = m2[[2]string{"x", "y"}] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
- z, ok = m2[[2]string{"x", "y"}] // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
+ z, ok = m2[[2]string{"x", "y"}]
+ z, ok = m2[[2]string{"x", "y"}]
printbytepointer(z)
print(ok)
}
if b {
m2[[2]string{"x", "y"}] = nil // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
}
- m2[[2]string{"x", "y"}] = nil // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
- m2[[2]string{"x", "y"}] = nil // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
+ m2[[2]string{"x", "y"}] = nil
+ m2[[2]string{"x", "y"}] = nil
}
-// defer should not cause spurious ambiguously live variables
-
+// Non-open-coded defers should not cause autotmps. (Open-coded defers do create extra autotmps).
func f25(b bool) {
- defer g25()
+ for i := 0; i < 2; i++ {
+ // Put in loop to make sure defer is not open-coded
+ defer g25()
+ }
if b {
return
}
var x string
x = g14()
printstring(x)
+ return
}
func g25()
if b {
print26((*int)(nil), (*int)(nil), (*int)(nil)) // ERROR "stack object .autotmp_[0-9]+ \[3\]interface \{\}$"
}
- print26((*int)(nil), (*int)(nil), (*int)(nil)) // ERROR "stack object .autotmp_[0-9]+ \[3\]interface \{\}$"
- print26((*int)(nil), (*int)(nil), (*int)(nil)) // ERROR "stack object .autotmp_[0-9]+ \[3\]interface \{\}$"
+ print26((*int)(nil), (*int)(nil), (*int)(nil))
+ print26((*int)(nil), (*int)(nil), (*int)(nil))
printnl()
}
if b {
call27(func() { x++ }) // ERROR "stack object .autotmp_[0-9]+ struct \{"
}
- call27(func() { x++ }) // ERROR "stack object .autotmp_[0-9]+ struct \{"
- call27(func() { x++ }) // ERROR "stack object .autotmp_[0-9]+ struct \{"
+ call27(func() { x++ })
+ call27(func() { x++ })
printnl()
}
defer call27(func() { x++ }) // ERROR "stack object .autotmp_[0-9]+ struct \{"
}
defer call27(func() { x++ }) // ERROR "stack object .autotmp_[0-9]+ struct \{"
- printnl()
+ printnl() // ERROR "live at call to printnl: .autotmp_[0-9]+ .autotmp_[0-9]+"
+ return // ERROR "live at indirect call: .autotmp_[0-9]+"
}
// and newproc (go) escapes to the heap
func f27go(b bool) {
x := 0
if b {
- go call27(func() { x++ }) // ERROR "live at call to newobject: &x$" "live at call to newproc: &x$"
+ go call27(func() { x++ }) // ERROR "live at call to newobject: &x$" "live at call to newobject: &x .autotmp_[0-9]+$" "live at call to newproc: &x$" // allocate two closures, the func literal, and the wrapper for go
}
- go call27(func() { x++ }) // ERROR "live at call to newobject: &x$"
+ go call27(func() { x++ }) // ERROR "live at call to newobject: &x$" "live at call to newobject: .autotmp_[0-9]+$" // allocate two closures, the func literal, and the wrapper for go
printnl()
}
if b {
printstring(s1 + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10) // ERROR "stack object .autotmp_[0-9]+ \[10\]string$"
}
- printstring(s1 + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10) // ERROR "stack object .autotmp_[0-9]+ \[10\]string$"
- printstring(s1 + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10) // ERROR "stack object .autotmp_[0-9]+ \[10\]string$"
+ printstring(s1 + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10)
+ printstring(s1 + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10)
}
// map iterator should die on end of range loop
func f29(b bool) {
if b {
- for k := range m { // ERROR "live at call to mapiterinit: .autotmp_[0-9]+$" "live at call to mapiternext: .autotmp_[0-9]+$" "stack object .autotmp_[0-9]+ map.iter\[string\]int$"
+ for k := range m { // ERROR "live at call to mapiterinit: .autotmp_[0-9]+$" "live at call to mapiternext: .autotmp_[0-9]+$" "stack object .autotmp_[0-9]+ runtime.hiter$"
printstring(k) // ERROR "live at call to printstring: .autotmp_[0-9]+$"
}
}
- for k := range m { // ERROR "live at call to mapiterinit: .autotmp_[0-9]+$" "live at call to mapiternext: .autotmp_[0-9]+$" "stack object .autotmp_[0-9]+ map.iter\[string\]int$"
+ for k := range m { // ERROR "live at call to mapiterinit: .autotmp_[0-9]+$" "live at call to mapiternext: .autotmp_[0-9]+$"
printstring(k) // ERROR "live at call to printstring: .autotmp_[0-9]+$"
}
- for k := range m { // ERROR "live at call to mapiterinit: .autotmp_[0-9]+$" "live at call to mapiternext: .autotmp_[0-9]+$" "stack object .autotmp_[0-9]+ map.iter\[string\]int$"
+ for k := range m { // ERROR "live at call to mapiterinit: .autotmp_[0-9]+$" "live at call to mapiternext: .autotmp_[0-9]+$"
printstring(k) // ERROR "live at call to printstring: .autotmp_[0-9]+$"
}
}
printintpointer(p.intp) // ERROR "live at call to printintpointer: .autotmp_[0-9]+$"
}
}
- for _, p := range pstructarr { // ERROR "stack object .autotmp_[0-9]+ \[10\]pstruct$"
+ for _, p := range pstructarr {
printintpointer(p.intp) // ERROR "live at call to printintpointer: .autotmp_[0-9]+$"
}
- for _, p := range pstructarr { // ERROR "stack object .autotmp_[0-9]+ \[10\]pstruct$"
+ for _, p := range pstructarr {
printintpointer(p.intp) // ERROR "live at call to printintpointer: .autotmp_[0-9]+$"
}
}
func f31(b1, b2, b3 bool) {
if b1 {
- g31(str()) // ERROR "stack object .autotmp_[0-9]+ string$"
+ g31(g18()) // ERROR "stack object .autotmp_[0-9]+ \[2\]string$"
}
if b2 {
- h31(str()) // ERROR "live at call to convT2Estring: .autotmp_[0-9]+$" "live at call to newobject: .autotmp_[0-9]+$" "stack object .autotmp_[0-9]+ string$"
+ h31(g18()) // ERROR "live at call to convT: .autotmp_[0-9]+$" "live at call to newobject: .autotmp_[0-9]+$"
}
if b3 {
- panic(str()) // ERROR "stack object .autotmp_[0-9]+ string$"
+ panic(g18())
}
print(b3)
}
if b {
call32(t32.Inc) // ERROR "stack object .autotmp_[0-9]+ struct \{"
}
- call32(t32.Inc) // ERROR "stack object .autotmp_[0-9]+ struct \{"
- call32(t32.Inc) // ERROR "stack object .autotmp_[0-9]+ struct \{"
+ call32(t32.Inc)
+ call32(t32.Inc)
}
//go:noescape
func f37() {
if (m33[byteptr()] == 0 || // ERROR "stack object .autotmp_[0-9]+ interface \{\}"
m33[byteptr()] == 0) && // ERROR "stack object .autotmp_[0-9]+ interface \{\}"
- m33[byteptr()] == 0 { // ERROR "stack object .autotmp_[0-9]+ interface \{\}"
+ m33[byteptr()] == 0 {
printnl()
return
}
// we care that the println lines have no live variables
// and therefore no output.
if b {
- select { // ERROR "live at call to selectgo:( .autotmp_[0-9]+)+$" "stack object .autotmp_[0-9]+ \[4\]struct \{"
+ select { // ERROR "live at call to selectgo:( .autotmp_[0-9]+)+$" "stack object .autotmp_[0-9]+ \[4\]runtime.scase$"
case <-fc38():
printnl()
case fc38() <- *fi38(1): // ERROR "live at call to fc38:( .autotmp_[0-9]+)+$" "live at call to fi38:( .autotmp_[0-9]+)+$" "stack object .autotmp_[0-9]+ string$"
printnl()
case *fi38(2) = <-fc38(): // ERROR "live at call to fc38:( .autotmp_[0-9]+)+$" "live at call to fi38:( .autotmp_[0-9]+)+$" "stack object .autotmp_[0-9]+ string$"
printnl()
- case *fi38(3), *fb38() = <-fc38(): // ERROR "stack object .autotmp_[0-9]+ string$" "live at call to fc38:( .autotmp_[0-9]+)+$" "live at call to fi38:( .autotmp_[0-9]+)+$"
+ case *fi38(3), *fb38() = <-fc38(): // ERROR "stack object .autotmp_[0-9]+ string$" "live at call to f[ibc]38:( .autotmp_[0-9]+)+$"
printnl()
}
printnl()
func good40() {
ret := T40{} // ERROR "stack object ret T40$"
- ret.m = make(map[int]int) // ERROR "live at call to fastrand: .autotmp_[0-9]+ ret$" "stack object .autotmp_[0-9]+ map.hdr\[int\]int$"
+ ret.m = make(map[int]int) // ERROR "live at call to fastrand: .autotmp_[0-9]+$" "stack object .autotmp_[0-9]+ runtime.hmap$"
t := &ret
printnl() // ERROR "live at call to printnl: ret$"
// Note: ret is live at the printnl because the compiler moves &ret
func (*T) Foo(ptr *int) {}
-type R struct{ *T } // ERRORAUTO "live at entry to \(\*R\)\.Foo: \.this ptr" "live at entry to R\.Foo: \.this ptr"
+type R struct{ *T }
// issue 18860: output arguments must be live all the time if there is a defer.
// In particular, at printint r must be live.
func f41(p, q *int) (r *int) { // ERROR "live at entry to f41: p q$"
r = p
- defer func() { // ERROR "live at call to deferproc: q r$" "live at call to deferreturn: r$"
+ defer func() {
recover()
}()
- printint(0) // ERROR "live at call to printint: q r$"
+ printint(0) // ERROR "live at call to printint: .autotmp_[0-9]+ q r$"
r = q
- return // ERROR "live at call to deferreturn: r$"
+ return // ERROR "live at call to f41.func1: .autotmp_[0-9]+ r$"
+}
+
+func f42() {
+ var p, q, r int
+ f43([]*int{&p, &q, &r}) // ERROR "stack object .autotmp_[0-9]+ \[3\]\*int$"
+ f43([]*int{&p, &r, &q})
+ f43([]*int{&q, &p, &r})
+}
+
+//go:noescape
+func f43(a []*int)
+
+// Assigning to a sub-element that makes up an entire local variable
+// should clobber that variable.
+func f44(f func() [2]*int) interface{} { // ERROR "live at entry to f44: f"
+ type T struct {
+ s [1][2]*int
+ }
+ ret := T{} // ERROR "stack object ret T"
+ ret.s[0] = f()
+ return ret
}