1 files changed, 71 insertions, 0 deletions
diff --git a/src/test/debug-info/struct-style-enum.rs b/src/test/debug-info/struct-style-enum.rs
new file mode 100644
index 00000000000..2be15e0f80f
--- /dev/null
+++ b/src/test/debug-info/struct-style-enum.rs
@@ -0,0 +1,71 @@
+// Copyright 2013 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.
+
+// compile-flags:-Z extra-debug-info
+// debugger:set print union on
+// debugger:break zzz
+// debugger:run
+// debugger:finish
+
+// debugger:print case1
+// check:$1 = {{Case1, a = 0, b = 31868, c = 31868, d = 31868, e = 31868}, {Case1, a = 0, b = 2088533116, c = 2088533116}, {Case1, a = 0, b = 8970181431921507452}}
+
+// debugger:print case2
+// check:$2 = {{Case2, a = 0, b = 4369, c = 4369, d = 4369, e = 4369}, {Case2, a = 0, b = 286331153, c = 286331153}, {Case2, a = 0, b = 1229782938247303441}}
+
+// debugger:print case3
+// check:$3 = {{Case3, a = 0, b = 22873, c = 22873, d = 22873, e = 22873}, {Case3, a = 0, b = 1499027801, c = 1499027801}, {Case3, a = 0, b = 6438275382588823897}}
+
+// debugger:print univariant
+// check:$4 = {{a = -1}}
+
+// 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 Regular {
+    Case1 { a: u64, b: u16, c: u16, d: u16, e: u16},
+    Case2 { a: u64, b: u32, c: u32},
+    Case3 { a: u64, b: u64 }
+}
+
+enum Univariant {
+    TheOnlyCase { a: i64 }
+}
+
+fn main() {
+
+    // In order to avoid endianess trouble all of the following test values consist of a single
+    // repeated byte. This way each interpretation of the union should look the same, no matter if
+    // this is a big or little endian machine.
+
+    // 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
+    // 0b01111100011111000111110001111100 = 2088533116
+    // 0b0111110001111100 = 31868
+    // 0b01111100 = 124
+    let case1 = Case1 { a: 0, b: 31868, c: 31868, d: 31868, e: 31868 };
+
+    // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
+    // 0b00010001000100010001000100010001 = 286331153
+    // 0b0001000100010001 = 4369
+    // 0b00010001 = 17
+    let case2 = Case2 { a: 0, b: 286331153, c: 286331153 };
+
+    // 0b0101100101011001010110010101100101011001010110010101100101011001 = 6438275382588823897
+    // 0b01011001010110010101100101011001 = 1499027801
+    // 0b0101100101011001 = 22873
+    // 0b01011001 = 89
+    let case3 = Case3 { a: 0, b: 6438275382588823897 };
+
+    let univariant = TheOnlyCase { a: -1 };
+
+    zzz();
+}
+
+fn zzz() {()}
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