Auto merge of #17259 - lnicola:sync-from-rust, r=lnicola

internal: Sync from downstream

1 files changed, 46 insertions, 0 deletions

diff --git a/tests/debuginfo/enum-thinlto.rs b/tests/debuginfo/enum-thinlto.rs
new file mode 100644
index 00000000000..42a0d1e28f8
--- /dev/null
+++ b/tests/debuginfo/enum-thinlto.rs
@@ -0,0 +1,46 @@
+// Require a gdb that can read DW_TAG_variant_part.
+//@ min-gdb-version: 8.2
+//@ min-lldb-version: 1800
+//@ compile-flags:-g -Z thinlto
+
+// === GDB TESTS ===================================================================================
+
+// gdb-command:run
+
+// gdb-command:print *abc
+// gdbr-check:$1 = enum_thinlto::ABC::TheA{x: 0, y: 8970181431921507452}
+
+// === LLDB TESTS ==================================================================================
+
+// lldb-command:run
+
+// lldb-command:v *abc
+// lldbg-check:(enum_thinlto::ABC) *abc = { value = { x = 0 y = 8970181431921507452 } $discr$ = 0 }
+// lldbr-check:(enum_thinlto::ABC) *abc = (x = 0, y = 8970181431921507452)
+
+#![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.
+#[derive(Debug)]
+enum ABC {
+    TheA { x: i64, y: i64 },
+    TheB (i64, i32, i32),
+}
+
+fn main() {
+    let abc = ABC::TheA { x: 0, y: 0x7c7c_7c7c_7c7c_7c7c };
+
+    f(&abc);
+}
+
+fn f(abc: &ABC) {
+    zzz(); // #break
+
+    println!("{:?}", abc);
+}
+
+fn zzz() {()}