1 // min-lldb-version: 310
3 // Require a gdb that can read DW_TAG_variant_part.
4 // min-gdb-version: 8.2
8 // gdb-command:set print union on
11 // gdb-command:print case1
12 // gdbr-check:$1 = generic_struct_style_enum::Regular<u16, u32, i64>::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}
14 // gdb-command:print case2
15 // gdbr-check:$2 = generic_struct_style_enum::Regular<i16, u32, i64>::Case2{a: 0, b: 286331153, c: 286331153}
17 // gdb-command:print case3
18 // gdbr-check:$3 = generic_struct_style_enum::Regular<u16, i32, u64>::Case3{a: 0, b: 6438275382588823897}
20 // gdb-command:print univariant
21 // gdbr-check:$4 = generic_struct_style_enum::Univariant<i32>::TheOnlyCase{a: -1}
24 #![feature(omit_gdb_pretty_printer_section)]
25 #![omit_gdb_pretty_printer_section]
27 use self::Regular::{Case1, Case2, Case3};
28 use self::Univariant::TheOnlyCase;
30 // NOTE: This is a copy of the non-generic test case. The `Txx` type parameters have to be
31 // substituted with something of size `xx` bits and the same alignment as an integer type of the
34 // The first element is to ensure proper alignment, irrespective of the machines word size. Since
35 // the size of the discriminant value is machine dependent, this has be taken into account when
36 // datatype layout should be predictable as in this case.
37 enum Regular<T16, T32, T64> {
38 Case1 { a: T64, b: T16, c: T16, d: T16, e: T16},
39 Case2 { a: T64, b: T32, c: T32},
40 Case3 { a: T64, b: T64 }
49 // In order to avoid endianness trouble all of the following test values consist of a single
50 // repeated byte. This way each interpretation of the union should look the same, no matter if
51 // this is a big or little endian machine.
53 // 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
54 // 0b01111100011111000111110001111100 = 2088533116
55 // 0b0111110001111100 = 31868
57 let case1: Regular<u16, u32, i64> = Case1 { a: 0, b: 31868, c: 31868, d: 31868, e: 31868 };
59 // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
60 // 0b00010001000100010001000100010001 = 286331153
61 // 0b0001000100010001 = 4369
63 let case2: Regular<i16, u32, i64> = Case2 { a: 0, b: 286331153, c: 286331153 };
65 // 0b0101100101011001010110010101100101011001010110010101100101011001 = 6438275382588823897
66 // 0b01011001010110010101100101011001 = 1499027801
67 // 0b0101100101011001 = 22873
69 let case3: Regular<u16, i32, u64> = Case3 { a: 0, b: 6438275382588823897 };
71 let univariant = TheOnlyCase { a: -1 };