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- // MIR for `foo` before MatchBranchSimplification
+ // MIR for `foo` after MatchBranchSimplification
fn foo(_1: [u8; 16]) -> Option<[u8; 4]> {
debug bytes => _1; // in scope 0 at $DIR/issue-75439.rs:5:12: 5:17
let mut _0: std::option::Option<[u8; 4]>; // return place in scope 0 at $DIR/issue-75439.rs:5:32: 5:47
let _2: [u32; 4]; // in scope 0 at $DIR/issue-75439.rs:7:9: 7:15
let mut _3: [u8; 16]; // in scope 0 at $DIR/issue-75439.rs:7:47: 7:52
let mut _5: [u8; 4]; // in scope 0 at $DIR/issue-75439.rs:10:14: 10:38
let mut _6: u32; // in scope 0 at $DIR/issue-75439.rs:10:33: 10:35
scope 1 {
debug dwords => _2; // in scope 1 at $DIR/issue-75439.rs:7:9: 7:15
scope 3 {
debug ip => _4; // in scope 3 at $DIR/issue-75439.rs:9:27: 9:29
let _4: u32; // in scope 3 at $DIR/issue-75439.rs:9:27: 9:29
scope 4 {
}
}
}
scope 2 {
}
bb0: {
StorageLive(_2); // scope 0 at $DIR/issue-75439.rs:7:9: 7:15
StorageLive(_3); // scope 2 at $DIR/issue-75439.rs:7:47: 7:52
_3 = _1; // scope 2 at $DIR/issue-75439.rs:7:47: 7:52
_2 = transmute::<[u8; 16], [u32; 4]>(move _3) -> bb1; // scope 2 at $DIR/issue-75439.rs:7:37: 7:53
// mir::Constant
// + span: $DIR/issue-75439.rs:7:37: 7:46
// + literal: Const { ty: unsafe extern "rust-intrinsic" fn([u8; 16]) -> [u32; 4] {transmute::<[u8; 16], [u32; 4]>}, val: Value(Scalar(<ZST>)) }
}
bb1: {
StorageDead(_3); // scope 2 at $DIR/issue-75439.rs:7:52: 7:53
switchInt(_2[0 of 4]) -> [0_u32: bb2, otherwise: bb8]; // scope 3 at $DIR/issue-75439.rs:9:12: 9:30
}
bb2: {
switchInt(_2[1 of 4]) -> [0_u32: bb3, otherwise: bb8]; // scope 3 at $DIR/issue-75439.rs:9:12: 9:30
}
bb3: {
switchInt(_2[2 of 4]) -> [0_u32: bb5, 4294901760_u32: bb6, otherwise: bb8]; // scope 3 at $DIR/issue-75439.rs:9:12: 9:30
}
bb4: {
StorageLive(_5); // scope 3 at $DIR/issue-75439.rs:10:14: 10:38
StorageLive(_6); // scope 4 at $DIR/issue-75439.rs:10:33: 10:35
_6 = _4; // scope 4 at $DIR/issue-75439.rs:10:33: 10:35
_5 = transmute::<u32, [u8; 4]>(move _6) -> bb7; // scope 4 at $DIR/issue-75439.rs:10:23: 10:36
// mir::Constant
// + span: $DIR/issue-75439.rs:10:23: 10:32
// + literal: Const { ty: unsafe extern "rust-intrinsic" fn(u32) -> [u8; 4] {transmute::<u32, [u8; 4]>}, val: Value(Scalar(<ZST>)) }
}
bb5: {
StorageLive(_4); // scope 3 at $DIR/issue-75439.rs:9:27: 9:29
_4 = _2[3 of 4]; // scope 3 at $DIR/issue-75439.rs:9:27: 9:29
goto -> bb4; // scope 3 at $DIR/issue-75439.rs:9:12: 9:30
}
bb6: {
StorageLive(_4); // scope 3 at $DIR/issue-75439.rs:9:27: 9:29
_4 = _2[3 of 4]; // scope 3 at $DIR/issue-75439.rs:9:27: 9:29
goto -> bb4; // scope 3 at $DIR/issue-75439.rs:9:12: 9:30
}
bb7: {
StorageDead(_6); // scope 4 at $DIR/issue-75439.rs:10:35: 10:36
Deinit(_0); // scope 3 at $DIR/issue-75439.rs:10:9: 10:39
((_0 as Some).0: [u8; 4]) = move _5; // scope 3 at $DIR/issue-75439.rs:10:9: 10:39
discriminant(_0) = 1; // scope 3 at $DIR/issue-75439.rs:10:9: 10:39
StorageDead(_5); // scope 3 at $DIR/issue-75439.rs:10:38: 10:39
StorageDead(_4); // scope 1 at $DIR/issue-75439.rs:11:5: 11:6
goto -> bb9; // scope 1 at $DIR/issue-75439.rs:9:5: 13:6
}
bb8: {
Deinit(_0); // scope 1 at $DIR/issue-75439.rs:12:9: 12:13
discriminant(_0) = 0; // scope 1 at $DIR/issue-75439.rs:12:9: 12:13
goto -> bb9; // scope 1 at $DIR/issue-75439.rs:9:5: 13:6
}
bb9: {
StorageDead(_2); // scope 0 at $DIR/issue-75439.rs:14:1: 14:2
return; // scope 0 at $DIR/issue-75439.rs:14:2: 14:2
}
}
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