1 // compile-flags: -Copt-level=1
6 // Check each of the 3 cases for `codegen_get_discr`.
8 // Case 0: One tagged variant.
14 // CHECK: define i8 @match0{{.*}}
16 // CHECK-NEXT: %1 = icmp eq i8 %0, 2
17 // CHECK-NEXT: %2 = and i8 %0, 1
18 // CHECK-NEXT: %.0 = select i1 %1, i8 13, i8 %2
20 pub fn match0(e: Enum0) -> u8 {
28 // Case 1: Niche values are on a boundary for `range`.
35 // CHECK: define i8 @match1{{.*}}
37 // CHECK-NEXT: %1 = icmp ugt i8 %0, 1
38 // CHECK-NEXT: %2 = zext i8 %0 to i64
39 // CHECK-NEXT: %3 = add nsw i64 %2, -1
40 // CHECK-NEXT: %_2 = select i1 %1, i64 %3, i64 0
41 // CHECK-NEXT: switch i64 %_2, label {{.*}} [
43 pub fn match1(e: Enum1) -> u8 {
52 // Case 2: Special cases don't apply.
54 _2=2, _3, _4, _5, _6, _7, _8, _9, _10, _11,
55 _12, _13, _14, _15, _16, _17, _18, _19, _20,
56 _21, _22, _23, _24, _25, _26, _27, _28, _29,
57 _30, _31, _32, _33, _34, _35, _36, _37, _38,
58 _39, _40, _41, _42, _43, _44, _45, _46, _47,
59 _48, _49, _50, _51, _52, _53, _54, _55, _56,
60 _57, _58, _59, _60, _61, _62, _63, _64, _65,
61 _66, _67, _68, _69, _70, _71, _72, _73, _74,
62 _75, _76, _77, _78, _79, _80, _81, _82, _83,
63 _84, _85, _86, _87, _88, _89, _90, _91, _92,
64 _93, _94, _95, _96, _97, _98, _99, _100, _101,
65 _102, _103, _104, _105, _106, _107, _108, _109,
66 _110, _111, _112, _113, _114, _115, _116, _117,
67 _118, _119, _120, _121, _122, _123, _124, _125,
68 _126, _127, _128, _129, _130, _131, _132, _133,
69 _134, _135, _136, _137, _138, _139, _140, _141,
70 _142, _143, _144, _145, _146, _147, _148, _149,
71 _150, _151, _152, _153, _154, _155, _156, _157,
72 _158, _159, _160, _161, _162, _163, _164, _165,
73 _166, _167, _168, _169, _170, _171, _172, _173,
74 _174, _175, _176, _177, _178, _179, _180, _181,
75 _182, _183, _184, _185, _186, _187, _188, _189,
76 _190, _191, _192, _193, _194, _195, _196, _197,
77 _198, _199, _200, _201, _202, _203, _204, _205,
78 _206, _207, _208, _209, _210, _211, _212, _213,
79 _214, _215, _216, _217, _218, _219, _220, _221,
80 _222, _223, _224, _225, _226, _227, _228, _229,
81 _230, _231, _232, _233, _234, _235, _236, _237,
82 _238, _239, _240, _241, _242, _243, _244, _245,
83 _246, _247, _248, _249, _250, _251, _252, _253,
94 // CHECK: define i8 @match2{{.*}}
96 // CHECK-NEXT: %1 = add i8 %0, 2
97 // CHECK-NEXT: %2 = zext i8 %1 to i64
98 // CHECK-NEXT: %3 = icmp ult i8 %1, 4
99 // CHECK-NEXT: %4 = add nuw nsw i64 %2, 1
100 // CHECK-NEXT: %_2 = select i1 %3, i64 %4, i64 0
101 // CHECK-NEXT: switch i64 %_2, label {{.*}} [
103 pub fn match2(e: Enum2) -> u8 {