Add more enum debug info tests

Rename the previous enum debug info test, and add more tests to cover
c-like enums and tagged (ordinary) enums.

3 files changed, 75 insertions, 0 deletions

diff --git a/src/test/codegen/enum-debug-clike.rs b/src/test/codegen/enum-debug-clike.rs
new file mode 100644
index 00000000000..528e84b298c
--- /dev/null
+++ b/src/test/codegen/enum-debug-clike.rs
@@ -0,0 +1,35 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test depends on a patch that was committed to upstream LLVM
+// before 7.0, then backported to the Rust LLVM fork.  It tests that
+// debug info for "c-like" enums is properly emitted.
+
+// ignore-tidy-linelength
+// ignore-windows
+// min-system-llvm-version 7.0
+
+// compile-flags: -g -C no-prepopulate-passes
+
+// CHECK-LABEL: @main
+// CHECK: {{.*}}DICompositeType{{.*}}tag: DW_TAG_enumeration_type,{{.*}}name: "E",{{.*}}flags: DIFlagFixedEnum,{{.*}}
+// CHECK: {{.*}}DIEnumerator{{.*}}name: "A",{{.*}}value: {{[0-9].*}}
+// CHECK: {{.*}}DIEnumerator{{.*}}name: "B",{{.*}}value: {{[0-9].*}}
+// CHECK: {{.*}}DIEnumerator{{.*}}name: "C",{{.*}}value: {{[0-9].*}}
+
+#![allow(dead_code)]
+#![allow(unused_variables)]
+#![allow(unused_assignments)]
+
+enum E { A, B, C }
+
+pub fn main() {
+    let e = E::C;
+}
diff --git a/src/test/codegen/enum-debug.rs b/src/test/codegen/enum-debug-niche.rs
index 6326ba93266..6326ba93266 100644
--- a/src/test/codegen/enum-debug.rs
+++ b/src/test/codegen/enum-debug-niche.rs
diff --git a/src/test/codegen/enum-debug-tagged.rs b/src/test/codegen/enum-debug-tagged.rs
new file mode 100644
index 00000000000..e862d29c940
--- /dev/null
+++ b/src/test/codegen/enum-debug-tagged.rs
@@ -0,0 +1,40 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// This test depends on a patch that was committed to upstream LLVM
+// before 7.0, then backported to the Rust LLVM fork.  It tests that
+// debug info for tagged (ordinary) enums is properly emitted.
+
+// ignore-tidy-linelength
+// ignore-windows
+// min-system-llvm-version 7.0
+
+// compile-flags: -g -C no-prepopulate-passes
+
+// CHECK-LABEL: @main
+// CHECK: {{.*}}DICompositeType{{.*}}tag: DW_TAG_structure_type,{{.*}}name: "E",{{.*}}
+// CHECK: {{.*}}DICompositeType{{.*}}tag: DW_TAG_variant_part,{{.*}}discriminator:{{.*}}
+// CHECK: {{.*}}DIDerivedType{{.*}}tag: DW_TAG_member,{{.*}}name: "A",{{.*}}extraData:{{.*}}
+// CHECK: {{.*}}DICompositeType{{.*}}tag: DW_TAG_structure_type,{{.*}}name: "A",{{.*}}
+// CHECK: {{.*}}DIDerivedType{{.*}}tag: DW_TAG_member,{{.*}}name: "__0",{{.*}}
+// CHECK: {{.*}}DIDerivedType{{.*}}tag: DW_TAG_member,{{.*}}name: "B",{{.*}}extraData:{{.*}}
+// CHECK: {{.*}}DICompositeType{{.*}}tag: DW_TAG_structure_type,{{.*}}name: "B",{{.*}}
+// CHECK: {{.*}}DIDerivedType{{.*}}tag: DW_TAG_member,{{.*}}name: "__0",{{.*}}
+// CHECK: {{.*}}DIDerivedType{{.*}}tag: DW_TAG_member,{{.*}}flags: DIFlagArtificial{{.*}}
+
+#![allow(dead_code)]
+#![allow(unused_variables)]
+#![allow(unused_assignments)]
+
+enum E { A(u32), B(u32) }
+
+pub fn main() {
+    let e = E::A(23);
+}