cmd/compile/internal/inline: score call sites exposed by inlines

[gostls13.git] / test / escape_iface.go

diff --git a/test/escape_iface.go b/test/escape_iface.go
index be7b6024cd241028837860633e726c24f6ee7a1a..d822cca2f8485fa6b263cbb2db1599c9fcd4e0e1 100644 (file)
--- a/test/escape_iface.go
+++ b/test/escape_iface.go
@@ -37,7 +37,7 @@ func efaceEscape0() {
                _ = x
        }
        {
-               i := 0      // ERROR "moved to heap: i"
+               i := 0 // ERROR "moved to heap: i"
                v := M0{&i}
                var x M = v
                sink = x
@@ -50,7 +50,7 @@ func efaceEscape0() {
                _ = v1
        }
        {
-               i := 0      // ERROR "moved to heap: i"
+               i := 0 // ERROR "moved to heap: i"
                v := M0{&i}
                // BAD: v does not escape to heap here
                var x M = v
@@ -58,14 +58,13 @@ func efaceEscape0() {
                sink = v1
        }
        {
-               i := 0      // ERROR "moved to heap: i"
+               i := 0
                v := M0{&i}
-               // BAD: v does not escape to heap here
                var x M = v
-               x.M()
+               x.M() // ERROR "devirtualizing x.M"
        }
        {
-               i := 0      // ERROR "moved to heap: i"
+               i := 0 // ERROR "moved to heap: i"
                v := M0{&i}
                var x M = v
                mescapes(x)
@@ -91,46 +90,45 @@ func efaceEscape1() {
        {
                i := 0
                v := M1{&i, 0}
-               var x M = v    // ERROR "v does not escape"
+               var x M = v // ERROR "v does not escape"
                _ = x
        }
        {
-               i := 0         // ERROR "moved to heap: i"
+               i := 0 // ERROR "moved to heap: i"
                v := M1{&i, 0}
-               var x M = v    // ERROR "v escapes to heap"
+               var x M = v // ERROR "v escapes to heap"
                sink = x
        }
        {
                i := 0
                v := M1{&i, 0}
-               var x M = v    // ERROR "v does not escape"
+               var x M = v // ERROR "v does not escape"
                v1 := x.(M1)
                _ = v1
        }
        {
-               i := 0         // ERROR "moved to heap: i"
+               i := 0 // ERROR "moved to heap: i"
                v := M1{&i, 0}
-               var x M = v // ERROR "efaceEscape1 v does not escape"
+               var x M = v // ERROR "v does not escape"
                v1 := x.(M1)
                sink = v1 // ERROR "v1 escapes to heap"
        }
        {
-               i := 0         // ERROR "moved to heap: i"
+               i := 0
                v := M1{&i, 0}
-               // BAD: v does not escape to heap here
-               var x M = v // ERROR "v escapes to heap"
-               x.M()
+               var x M = v // ERROR "v does not escape"
+               x.M()       // ERROR "devirtualizing x.M"
        }
        {
-               i := 0         // ERROR "moved to heap: i"
+               i := 0 // ERROR "moved to heap: i"
                v := M1{&i, 0}
-               var x M = v    // ERROR "v escapes to heap"
+               var x M = v // ERROR "v escapes to heap"
                mescapes(x)
        }
        {
                i := 0
                v := M1{&i, 0}
-               var x M = v    // ERROR "v does not escape"
+               var x M = v // ERROR "v does not escape"
                mdoesnotescape(x)
        }
 }
@@ -146,26 +144,26 @@ func (*M2) M() {
 func efaceEscape2() {
        {
                i := 0
-               v := &M2{&i} // ERROR "&M2 literal does not escape"
+               v := &M2{&i} // ERROR "&M2{...} does not escape"
                var x M = v
                _ = x
        }
        {
                i := 0       // ERROR "moved to heap: i"
-               v := &M2{&i} // ERROR "&M2 literal escapes to heap"
+               v := &M2{&i} // ERROR "&M2{...} escapes to heap"
                var x M = v
                sink = x
        }
        {
                i := 0
-               v := &M2{&i} // ERROR "&M2 literal does not escape"
+               v := &M2{&i} // ERROR "&M2{...} does not escape"
                var x M = v
                v1 := x.(*M2)
                _ = v1
        }
        {
                i := 0       // ERROR "moved to heap: i"
-               v := &M2{&i} // ERROR "&M2 literal escapes to heap"
+               v := &M2{&i} // ERROR "&M2{...} escapes to heap"
                // BAD: v does not escape to heap here
                var x M = v
                v1 := x.(*M2)
@@ -173,7 +171,7 @@ func efaceEscape2() {
        }
        {
                i := 0       // ERROR "moved to heap: i"
-               v := &M2{&i} // ERROR "&M2 literal does not escape"
+               v := &M2{&i} // ERROR "&M2{...} does not escape"
                // BAD: v does not escape to heap here
                var x M = v
                v1 := x.(*M2)
@@ -181,7 +179,7 @@ func efaceEscape2() {
        }
        {
                i := 0       // ERROR "moved to heap: i"
-               v := &M2{&i} // ERROR "&M2 literal does not escape"
+               v := &M2{&i} // ERROR "&M2{...} does not escape"
                // BAD: v does not escape to heap here
                var x M = v
                v1, ok := x.(*M2)
@@ -189,21 +187,20 @@ func efaceEscape2() {
                _ = ok
        }
        {
-               i := 0       // ERROR "moved to heap: i"
-               v := &M2{&i} // ERROR "&M2 literal escapes to heap"
-               // BAD: v does not escape to heap here
+               i := 0
+               v := &M2{&i} // ERROR "&M2{...} does not escape"
                var x M = v
-               x.M()
+               x.M() // ERROR "devirtualizing x.M"
        }
        {
                i := 0       // ERROR "moved to heap: i"
-               v := &M2{&i} // ERROR "&M2 literal escapes to heap"
+               v := &M2{&i} // ERROR "&M2{...} escapes to heap"
                var x M = v
                mescapes(x)
        }
        {
                i := 0
-               v := &M2{&i} // ERROR "&M2 literal does not escape"
+               v := &M2{&i} // ERROR "&M2{...} does not escape"
                var x M = v
                mdoesnotescape(x)
        }
@@ -219,9 +216,9 @@ type T2 struct {
 
 func dotTypeEscape() *T2 { // #11931
        var x interface{}
-       x = &T1{p: new(int)} // ERROR "new\(int\) escapes to heap" "&T1 literal does not escape"
-       return &T2{
-               T1: *(x.(*T1)), // ERROR "&T2 literal escapes to heap"
+       x = &T1{p: new(int)} // ERROR "new\(int\) escapes to heap" "&T1{...} does not escape"
+       return &T2{          // ERROR "&T2{...} escapes to heap"
+               T1: *(x.(*T1)),
        }
 }
 
@@ -237,15 +234,15 @@ func dotTypeEscape2() { // #13805, #15796
                *(&v) = x.(int)
                *(&v), *(&ok) = y.(int)
        }
-       {
+       { // #13805, #15796
                i := 0
                j := 0
                var ok bool
                var x interface{} = i // ERROR "i does not escape"
                var y interface{} = j // ERROR "j does not escape"
 
-               sink = x.(int)        // ERROR "x.\(int\) escapes to heap"
-               sink, *(&ok) = y.(int)
+               sink = x.(int)         // ERROR "x.\(int\) escapes to heap"
+               sink, *(&ok) = y.(int) // ERROR "autotmp_.* escapes to heap"
        }
        {
                i := 0 // ERROR "moved to heap: i"
@@ -258,3 +255,11 @@ func dotTypeEscape2() { // #13805, #15796
                sink, *(&ok) = y.(*int)
        }
 }
+
+func issue42279() {
+       type I interface{ M() }
+       type T struct{ I }
+
+       var i I = T{} // ERROR "T\{\} does not escape"
+       i.M()         // ERROR "partially devirtualizing i.M to T"
+}