diff --git a/go/ssa/example_test.go b/go/ssa/example_test.go
index c33b6d62..de5ed5e1 100644
--- a/go/ssa/example_test.go
+++ b/go/ssa/example_test.go
@@ -49,7 +49,7 @@ func main() {
 // with similar functionality. It is located at
 // golang.org/x/tools/cmd/ssadump.
 //
-func ExampleBuildPackage() {
+func Example_buildPackage() {
 	// Parse the source files.
 	fset := token.NewFileSet()
 	f, err := parser.ParseFile(fset, "hello.go", hello, parser.ParseComments)
@@ -117,7 +117,7 @@ func ExampleBuildPackage() {
 // This example builds SSA code for a set of packages using the
 // x/tools/go/packages API. This is what you would typically use for a
 // analysis capable of operating on a single package.
-func ExampleLoadPackages() {
+func Example_loadPackages() {
 	// Load, parse, and type-check the initial packages.
 	cfg := &packages.Config{Mode: packages.LoadSyntax}
 	initial, err := packages.Load(cfg, "fmt", "net/http")
@@ -147,7 +147,7 @@ func ExampleLoadPackages() {
 // This example builds SSA code for a set of packages plus all their dependencies,
 // using the x/tools/go/packages API.
 // This is what you'd typically use for a whole-program analysis.
-func ExampleLoadWholeProgram() {
+func Example_loadWholeProgram() {
 	// Load, parse, and type-check the whole program.
 	cfg := packages.Config{Mode: packages.LoadAllSyntax}
 	initial, err := packages.Load(&cfg, "fmt", "net/http")
diff --git a/go/ssa/sanity.go b/go/ssa/sanity.go
index 6eb64328..0a7abc5e 100644
--- a/go/ssa/sanity.go
+++ b/go/ssa/sanity.go
@@ -408,8 +408,8 @@ func (s *sanity) checkFunction(fn *Function) bool {
 		s.errorf("nil Prog")
 	}
 
-	fn.String()            // must not crash
-	fn.RelString(fn.pkg()) // must not crash
+	_ = fn.String()            // must not crash
+	_ = fn.RelString(fn.pkg()) // must not crash
 
 	// All functions have a package, except delegates (which are
 	// shared across packages, or duplicated as weak symbols in a
@@ -499,7 +499,7 @@ func sanityCheckPackage(pkg *Package) {
 	if pkg.Pkg == nil {
 		panic(fmt.Sprintf("Package %s has no Object", pkg))
 	}
-	pkg.String() // must not crash
+	_ = pkg.String() // must not crash
 
 	for name, mem := range pkg.Members {
 		if name != mem.Name() {