1 // ignore-tidy-linelength
3 // Require LLVM with DW_TAG_variant_part and a gdb and lldb that can
5 // min-system-llvm-version: 8.0
6 // min-gdb-version: 8.2
11 // === GDB TESTS ===================================================================================
13 // gdb-command:set print union on
16 // gdb-command:print case1
17 // gdbr-check:$1 = struct_style_enum::Regular::Case1{a: 0, b: 31868, c: 31868, d: 31868, e: 31868}
19 // gdb-command:print case2
20 // gdbr-check:$2 = struct_style_enum::Regular::Case2{a: 0, b: 286331153, c: 286331153}
22 // gdb-command:print case3
23 // gdbr-check:$3 = struct_style_enum::Regular::Case3{a: 0, b: 6438275382588823897}
25 // gdb-command:print univariant
26 // gdbr-check:$4 = struct_style_enum::Univariant::TheOnlyCase{a: -1}
29 // === LLDB TESTS ==================================================================================
33 // lldb-command:print case1
34 // lldbr-check:(struct_style_enum::Regular::Case1) case1 = { a = 0 b = 31868 c = 31868 d = 31868 e = 31868 }
36 // lldb-command:print case2
37 // lldbr-check:(struct_style_enum::Regular::Case2) case2 = Case2 { Case1: 0, Case2: 286331153, Case3: 286331153 }
39 // lldb-command:print case3
40 // lldbr-check:(struct_style_enum::Regular::Case3) case3 = Case3 { Case1: 0, Case2: 6438275382588823897 }
42 // lldb-command:print univariant
43 // lldbr-check:(struct_style_enum::Univariant) univariant = Univariant { TheOnlyCase: TheOnlyCase { a: -1 } }
45 #![allow(unused_variables)]
46 #![feature(omit_gdb_pretty_printer_section)]
47 #![omit_gdb_pretty_printer_section]
49 use self::Regular::{Case1, Case2, Case3};
50 use self::Univariant::TheOnlyCase;
52 // The first element is to ensure proper alignment, irrespective of the machines word size. Since
53 // the size of the discriminant value is machine dependent, this has be taken into account when
54 // datatype layout should be predictable as in this case.
56 Case1 { a: u64, b: u16, c: u16, d: u16, e: u16},
57 Case2 { a: u64, b: u32, c: u32},
58 Case3 { a: u64, b: u64 }
62 TheOnlyCase { a: i64 }
67 // In order to avoid endianness trouble all of the following test values consist of a single
68 // repeated byte. This way each interpretation of the union should look the same, no matter if
69 // this is a big or little endian machine.
71 // 0b0111110001111100011111000111110001111100011111000111110001111100 = 8970181431921507452
72 // 0b01111100011111000111110001111100 = 2088533116
73 // 0b0111110001111100 = 31868
75 let case1 = Case1 { a: 0, b: 31868, c: 31868, d: 31868, e: 31868 };
77 // 0b0001000100010001000100010001000100010001000100010001000100010001 = 1229782938247303441
78 // 0b00010001000100010001000100010001 = 286331153
79 // 0b0001000100010001 = 4369
81 let case2 = Case2 { a: 0, b: 286331153, c: 286331153 };
83 // 0b0101100101011001010110010101100101011001010110010101100101011001 = 6438275382588823897
84 // 0b01011001010110010101100101011001 = 1499027801
85 // 0b0101100101011001 = 22873
87 let case3 = Case3 { a: 0, b: 6438275382588823897 };
89 let univariant = TheOnlyCase { a: -1 };