1 files changed, 71 insertions, 0 deletions
diff --git a/src/test/debuginfo/borrowed-enum.rs b/src/test/debuginfo/borrowed-enum.rs
new file mode 100644
index 000000000..f3e465dc6
--- /dev/null
+++ b/src/test/debuginfo/borrowed-enum.rs
@@ -0,0 +1,71 @@
+// Require a gdb or lldb that can read DW_TAG_variant_part.
+// min-gdb-version: 8.2
+// rust-lldb
+
+// compile-flags:-g
+
+// === GDB TESTS ===================================================================================
+
+// gdb-command:run
+
+// gdb-command:print *the_a_ref
+// gdbr-check:$1 = borrowed_enum::ABC::TheA{x: 0, y: 8970181431921507452}
+
+// gdb-command:print *the_b_ref
+// gdbr-check:$2 = borrowed_enum::ABC::TheB(0, 286331153, 286331153)
+
+// gdb-command:print *univariant_ref
+// gdbr-check:$3 = borrowed_enum::Univariant::TheOnlyCase(4820353753753434)
+
+
+// === LLDB TESTS ==================================================================================
+
+// lldb-command:run
+
+// lldb-command:print *the_a_ref
+// lldbr-check:(borrowed_enum::ABC::TheA) *the_a_ref = TheA { TheA: 0, TheB: 8970181431921507452 }
+// lldb-command:print *the_b_ref
+// lldbr-check:(borrowed_enum::ABC::TheB) *the_b_ref = { = 0 = 286331153 = 286331153 }
+// lldb-command:print *univariant_ref
+// lldbr-check:(borrowed_enum::Univariant) *univariant_ref = { TheOnlyCase = { = 4820353753753434 } }
+
+#![allow(unused_variables)]
+#![feature(omit_gdb_pretty_printer_section)]
+#![omit_gdb_pretty_printer_section]
+
+// The first element is to ensure proper alignment, irrespective of the machines word size. Since
+// the size of the discriminant value is machine dependent, this has be taken into account when
+// datatype layout should be predictable as in this case.
+enum ABC {
+    TheA { x: i64, y: i64 },
+    TheB (i64, i32, i32),
+}
+
+// This is a special case since it does not have the implicit discriminant field.
+enum Univariant {
+    TheOnlyCase(i64)
+}
+
+fn main() {
+
+    // 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
+    // 0b01111100011111000111110001111100 = 2088533116
+    // 0b0111110001111100 = 31868
+    // 0b01111100 = 124
+    let the_a = ABC::TheA { x: 0, y: 8970181431921507452 };
+    let the_a_ref: &ABC = &the_a;
+
+    // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
+    // 0b00010001000100010001000100010001 = 286331153
+    // 0b0001000100010001 = 4369
+    // 0b00010001 = 17
+    let the_b = ABC::TheB (0, 286331153, 286331153);
+    let the_b_ref: &ABC = &the_b;
+
+    let univariant = Univariant::TheOnlyCase(4820353753753434);
+    let univariant_ref: &Univariant = &univariant;
+
+    zzz(); // #break
+}
+
+fn zzz() {()}