37f83fb11d
Move can be used only when both the compared operand and the operand on switch are move operands. This commit directly changes to Copy, because I don't know if Move has beneficial.
61 lines
1.3 KiB
Diff
61 lines
1.3 KiB
Diff
- // MIR for `opt_multiple_ifs` before SimplifyComparisonIntegral
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+ // MIR for `opt_multiple_ifs` after SimplifyComparisonIntegral
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fn opt_multiple_ifs(_1: u32) -> u32 {
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debug x => _1;
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let mut _0: u32;
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let mut _2: bool;
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let mut _3: u32;
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let mut _4: bool;
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let mut _5: u32;
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bb0: {
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StorageLive(_2);
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StorageLive(_3);
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_3 = copy _1;
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- _2 = Eq(copy _1, const 42_u32);
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- switchInt(move _2) -> [0: bb2, otherwise: bb1];
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+ nop;
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+ switchInt(copy _1) -> [42: bb1, otherwise: bb2];
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}
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bb1: {
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StorageDead(_3);
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_0 = const 0_u32;
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goto -> bb6;
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}
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bb2: {
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StorageDead(_3);
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StorageLive(_4);
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StorageLive(_5);
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_5 = copy _1;
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- _4 = Ne(copy _1, const 21_u32);
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- switchInt(move _4) -> [0: bb4, otherwise: bb3];
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+ nop;
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+ switchInt(copy _1) -> [21: bb4, otherwise: bb3];
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}
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bb3: {
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StorageDead(_5);
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_0 = const 1_u32;
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goto -> bb5;
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}
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bb4: {
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StorageDead(_5);
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_0 = const 2_u32;
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goto -> bb5;
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}
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bb5: {
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StorageDead(_4);
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goto -> bb6;
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}
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bb6: {
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StorageDead(_2);
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return;
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}
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}
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