1 files changed, 149 insertions, 0 deletions
diff --git a/tests/codegen/sanitizer/cfi-emit-type-metadata-trait-objects.rs b/tests/codegen/sanitizer/cfi-emit-type-metadata-trait-objects.rs
new file mode 100644
index 000000000..b69e57261
--- /dev/null
+++ b/tests/codegen/sanitizer/cfi-emit-type-metadata-trait-objects.rs
@@ -0,0 +1,149 @@
+// Verifies that type metadata identifiers for trait objects are emitted correctly.
+//
+// needs-sanitizer-cfi
+// compile-flags: -Clto -Cno-prepopulate-passes -Copt-level=0 -Ctarget-feature=-crt-static -Zsanitizer=cfi
+
+#![crate_type="lib"]
+
+pub trait Trait1 {
+    fn foo(&self);
+}
+
+#[derive(Clone, Copy)]
+pub struct Type1;
+
+impl Trait1 for Type1 {
+    fn foo(&self) {
+    }
+}
+
+pub trait Trait2<T> {
+    fn bar(&self);
+}
+
+pub struct Type2;
+
+impl Trait2<i32> for Type2 {
+    fn bar(&self) {
+    }
+}
+
+pub trait Trait3<T> {
+    fn baz(&self, _: &T);
+}
+
+pub struct Type3;
+
+impl<T, U> Trait3<U> for T {
+    fn baz(&self, _: &U) {
+    }
+}
+
+pub trait Trait4<'a, T> {
+    type Output: 'a;
+    fn qux(&self, _: &T) -> Self::Output;
+}
+
+pub struct Type4;
+
+impl<'a, T, U> Trait4<'a, U> for T {
+    type Output = &'a i32;
+    fn qux(&self, _: &U) -> Self::Output {
+        &0
+    }
+}
+
+pub trait Trait5<T, const N: usize> {
+    fn quux(&self, _: &[T; N]);
+}
+
+#[derive(Copy, Clone)]
+pub struct Type5;
+
+impl<T, U, const N: usize> Trait5<U, N> for T {
+    fn quux(&self, _: &[U; N]) {
+    }
+}
+
+pub fn foo1(a: &dyn Trait1) {
+    a.foo();
+    // CHECK-LABEL: define{{.*}}4foo1{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE1:[[:print:]]+]]")
+}
+
+pub fn bar1() {
+    let a = Type1;
+    let b = &a as &dyn Trait1;
+    b.foo();
+    // CHECK-LABEL: define{{.*}}4bar1{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE2:[[:print:]]+]]")
+}
+
+pub fn foo2<T>(a: &dyn Trait2<T>) {
+    a.bar();
+    // CHECK-LABEL: define{{.*}}4foo2{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE2:[[:print:]]+]]")
+}
+
+pub fn bar2() {
+    let a = Type2;
+    foo2(&a);
+    let b = &a as &dyn Trait2<i32>;
+    b.bar();
+    // CHECK-LABEL: define{{.*}}4bar2{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE2:[[:print:]]+]]")
+}
+
+pub fn foo3(a: &dyn Trait3<Type3>) {
+    let b = Type3;
+    a.baz(&b);
+    // CHECK-LABEL: define{{.*}}4foo3{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE3:[[:print:]]+]]")
+}
+
+pub fn bar3() {
+    let a = Type3;
+    foo3(&a);
+    let b = &a as &dyn Trait3<Type3>;
+    b.baz(&a);
+    // CHECK-LABEL: define{{.*}}4bar3{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE3:[[:print:]]+]]")
+}
+
+pub fn foo4<'a>(a: &dyn Trait4<'a, Type4, Output = &'a i32>) {
+    let b = Type4;
+    a.qux(&b);
+    // CHECK-LABEL: define{{.*}}4foo4{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE4:[[:print:]]+]]")
+}
+
+pub fn bar4<'a>() {
+    let a = Type4;
+    foo4(&a);
+    let b = &a as &dyn Trait4<'a, Type4, Output = &'a i32>;
+    b.qux(&a);
+    // CHECK-LABEL: define{{.*}}4bar4{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE4:[[:print:]]+]]")
+}
+
+pub fn foo5(a: &dyn Trait5<Type5, 32>) {
+    let b = &[Type5; 32];
+    a.quux(&b);
+    // CHECK-LABEL: define{{.*}}4foo5{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE5:[[:print:]]+]]")
+}
+
+pub fn bar5() {
+    let a = &[Type5; 32];
+    foo5(&a);
+    let b = &a as &dyn Trait5<Type5, 32>;
+    b.quux(&a);
+    // CHECK-LABEL: define{{.*}}4bar5{{.*}}!type !{{[0-9]+}}
+    // CHECK:       call i1 @llvm.type.test(ptr {{%f|%[0-9]}}, metadata !"[[TYPE5:[[:print:]]+]]")
+}
+
+// CHECK: !{{[0-9]+}} = !{i64 0, !"[[TYPE1]]"}
+// CHECK: !{{[0-9]+}} = !{i64 0, !"[[TYPE2]]"}
+// CHECK: !{{[0-9]+}} = !{i64 0, !"[[TYPE3]]"}
+// CHECK: !{{[0-9]+}} = !{i64 0, !"[[TYPE4]]"}
+// CHECK: !{{[0-9]+}} = !{i64 0, !"[[TYPE5]]"}