Adding upstream version 1.22.1.upstream/1.22.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/test/escape4.go b/test/escape4.go
new file mode 100644
index 0000000..c4a2fc1
--- /dev/null
+++ b/test/escape4.go
@@ -0,0 +1,59 @@
+// errorcheck -0 -m
+
+//go:build !goexperiment.newinliner
+
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Test, using compiler diagnostic flags, that the escape analysis is working.
+// Compiles but does not run.  Inlining is enabled.
+
+package foo
+
+var p *int
+
+func alloc(x int) *int { // ERROR "can inline alloc" "moved to heap: x"
+	return &x
+}
+
+var f func()
+
+func f1() {
+	p = alloc(2) // ERROR "inlining call to alloc" "moved to heap: x"
+
+	// Escape analysis used to miss inlined code in closures.
+
+	func() { // ERROR "can inline f1.func1"
+		p = alloc(3) // ERROR "inlining call to alloc"
+	}() // ERROR "inlining call to f1.func1" "inlining call to alloc" "moved to heap: x"
+
+	f = func() { // ERROR "func literal escapes to heap" "can inline f1.func2"
+		p = alloc(3) // ERROR "inlining call to alloc" "moved to heap: x"
+	}
+	f()
+}
+
+func f2() {} // ERROR "can inline f2"
+
+// No inline for recover; panic now allowed to inline.
+func f3() { panic(1) } // ERROR "can inline f3" "1 escapes to heap"
+func f4() { recover() }
+
+func f5() *byte { // ERROR "can inline f5"
+	type T struct {
+		x [1]byte
+	}
+	t := new(T) // ERROR "new.T. escapes to heap"
+	return &t.x[0]
+}
+
+func f6() *byte { // ERROR "can inline f6"
+	type T struct {
+		x struct {
+			y byte
+		}
+	}
+	t := new(T) // ERROR "new.T. escapes to heap"
+	return &t.x.y
+}