Adding upstream version 1.19.8.upstream/1.19.8upstream

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

1 files changed, 42 insertions, 0 deletions

diff --git a/test/codegen/retpoline.go b/test/codegen/retpoline.go
new file mode 100644
index 0000000..a04a005
--- /dev/null
+++ b/test/codegen/retpoline.go
@@ -0,0 +1,42 @@
+// +build amd64
+// asmcheck -gcflags=-spectre=ret
+
+package codegen
+
+func CallFunc(f func()) {
+	// amd64:`CALL\truntime.retpoline`
+	f()
+}
+
+func CallInterface(x interface{ M() }) {
+	// amd64:`CALL\truntime.retpoline`
+	x.M()
+}
+
+// Check to make sure that jump tables are disabled
+// when retpoline is on. See issue 57097.
+func noJumpTables(x int) int {
+	switch x {
+	case 0:
+		return 0
+	case 1:
+		return 1
+	case 2:
+		return 2
+	case 3:
+		return 3
+	case 4:
+		return 4
+	case 5:
+		return 5
+	case 6:
+		return 6
+	case 7:
+		return 7
+	case 8:
+		return 8
+	case 9:
+		return 9
+	}
+	return 10
+}