mirror of https://github.com/rust-lang/rust.git
81 lines
1.7 KiB
Diff
81 lines
1.7 KiB
Diff
- // MIR for `match_u8_i8_2` before MatchBranchSimplification
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+ // MIR for `match_u8_i8_2` after MatchBranchSimplification
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fn match_u8_i8_2(_1: EnumAu8) -> (i8, i8) {
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debug i => _1;
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let mut _0: (i8, i8);
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let _2: i8;
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let _4: ();
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let mut _5: u8;
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let mut _6: i8;
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let mut _7: i8;
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+ let mut _8: u8;
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scope 1 {
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debug a => _2;
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let _3: i8;
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scope 2 {
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debug b => _3;
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}
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}
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bb0: {
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StorageLive(_2);
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StorageLive(_3);
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StorageLive(_4);
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_5 = discriminant(_1);
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- switchInt(move _5) -> [0: bb5, 127: bb4, 128: bb3, 255: bb2, otherwise: bb1];
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- }
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-
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- bb1: {
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- unreachable;
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- }
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-
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- bb2: {
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- _2 = const -1_i8;
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- _3 = const -1_i8;
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+ StorageLive(_8);
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+ _8 = move _5;
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+ _2 = copy _8 as i8 (IntToInt);
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+ _3 = copy _8 as i8 (IntToInt);
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_4 = ();
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- goto -> bb6;
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- }
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-
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- bb3: {
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- _2 = const i8::MIN;
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- _3 = const i8::MIN;
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- _4 = ();
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- goto -> bb6;
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- }
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-
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- bb4: {
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- _2 = const i8::MAX;
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- _3 = const i8::MAX;
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- _4 = ();
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- goto -> bb6;
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- }
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-
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- bb5: {
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- _2 = const 0_i8;
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- _3 = const 0_i8;
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- _4 = ();
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- goto -> bb6;
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- }
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-
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- bb6: {
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+ StorageDead(_8);
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StorageDead(_4);
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StorageLive(_6);
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_6 = copy _2;
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StorageLive(_7);
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_7 = copy _3;
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_0 = (move _6, move _7);
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StorageDead(_7);
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StorageDead(_6);
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StorageDead(_3);
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StorageDead(_2);
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return;
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}
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}
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