105 lines
2.9 KiB
Diff
105 lines
2.9 KiB
Diff
- // MIR for `constant_index_overflow` before GVN
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+ // MIR for `constant_index_overflow` after GVN
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fn constant_index_overflow(_1: &[T]) -> () {
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debug x => _1;
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let mut _0: ();
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let _2: usize;
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let mut _4: bool;
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let mut _5: usize;
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let mut _6: usize;
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let mut _7: &[T];
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let _8: usize;
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let mut _9: usize;
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let mut _10: bool;
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let _11: usize;
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let mut _12: usize;
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let mut _13: bool;
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let mut _14: T;
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scope 1 {
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debug a => _2;
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let _3: T;
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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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- _2 = const core::num::<impl u64>::MAX as usize (IntToInt);
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+ nop;
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+ _2 = const usize::MAX;
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StorageLive(_3);
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StorageLive(_4);
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StorageLive(_5);
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- _5 = copy _2;
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+ _5 = const usize::MAX;
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StorageLive(_6);
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StorageLive(_7);
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_7 = &(*_1);
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_6 = core::slice::<impl [T]>::len(move _7) -> [return: bb1, unwind unreachable];
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}
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bb1: {
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StorageDead(_7);
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- _4 = Lt(move _5, move _6);
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+ _4 = Lt(const usize::MAX, move _6);
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switchInt(move _4) -> [0: bb4, otherwise: bb2];
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}
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bb2: {
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StorageDead(_6);
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StorageDead(_5);
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StorageLive(_8);
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- _8 = copy _2;
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+ _8 = const usize::MAX;
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_9 = Len((*_1));
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- _10 = Lt(copy _8, copy _9);
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- assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, copy _8) -> [success: bb3, unwind unreachable];
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+ _10 = Lt(const usize::MAX, copy _9);
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+ assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, const usize::MAX) -> [success: bb3, unwind unreachable];
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}
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bb3: {
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- _3 = copy (*_1)[_8];
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+ _3 = copy (*_1)[_2];
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StorageDead(_8);
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goto -> bb6;
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}
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bb4: {
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StorageDead(_6);
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StorageDead(_5);
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StorageLive(_11);
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_11 = const 0_usize;
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_12 = Len((*_1));
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- _13 = Lt(copy _11, copy _12);
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- assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, copy _11) -> [success: bb5, unwind unreachable];
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+ _13 = Lt(const 0_usize, copy _12);
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+ assert(move _13, "index out of bounds: the length is {} but the index is {}", move _12, const 0_usize) -> [success: bb5, unwind unreachable];
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}
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bb5: {
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- _3 = copy (*_1)[_11];
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+ _3 = copy (*_1)[0 of 1];
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StorageDead(_11);
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goto -> bb6;
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}
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bb6: {
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StorageDead(_4);
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StorageLive(_14);
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_14 = copy _3;
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_0 = opaque::<T>(move _14) -> [return: bb7, unwind unreachable];
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}
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bb7: {
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StorageDead(_14);
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StorageDead(_3);
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- StorageDead(_2);
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+ nop;
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return;
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}
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}
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