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fix pred_count accounting in SimplifyCfg #36959

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merged 3 commits into from
Oct 6, 2016
Merged

fix pred_count accounting in SimplifyCfg #36959

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ae51ccf
SimplifyCfg: simplify the start block
arielb1 Oct 4, 2016
44ac016
SimplifyCfg: don't incref target when collapsing a goto with 1 pred
arielb1 Oct 4, 2016
bfdf437
update tests
arielb1 Oct 4, 2016
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4 changes: 2 additions & 2 deletions src/test/mir-opt/deaggregator_test.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ fn main() {}
// _2 = _1;
// _3 = _2;
// _0 = Baz { x: _3, y: const F32(0), z: const false };
// goto -> bb1;
// return;
// }
// END rustc.node13.Deaggregator.before.mir
// START rustc.node13.Deaggregator.after.mir
Expand All @@ -36,6 +36,6 @@ fn main() {}
// (_0.0: usize) = _3;
// (_0.1: f32) = const F32(0);
// (_0.2: bool) = const false;
// goto -> bb1;
// return;
// }
// END rustc.node13.Deaggregator.after.mir
4 changes: 2 additions & 2 deletions src/test/mir-opt/deaggregator_test_enum.rs
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Expand Up @@ -31,7 +31,7 @@ fn main() {
// _2 = _1;
// _3 = _2;
// _0 = Baz::Foo { x: _3 };
// goto -> bb1;
// return;
// }
// END rustc.node10.Deaggregator.before.mir
// START rustc.node10.Deaggregator.after.mir
Expand All @@ -40,6 +40,6 @@ fn main() {
// _3 = _2;
// ((_0 as Foo).0: usize) = _3;
// discriminant(_0) = 1;
// goto -> bb1;
// return;
// }
// END rustc.node10.Deaggregator.after.mir
4 changes: 0 additions & 4 deletions src/test/mir-opt/storage_ranges.rs
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Expand Up @@ -38,10 +38,6 @@ fn main() {
// _0 = ();
// StorageDead(_6);
// StorageDead(_1);
// goto -> bb1;
// }
//
// bb1: {
// return;
// }
// END rustc.node4.TypeckMir.before.mir