mirror of https://github.com/rust-lang/rust
27 lines
696 B
Rust
27 lines
696 B
Rust
//@ test-mir-pass: DataflowConstProp
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// EMIT_MIR if.main.DataflowConstProp.diff
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// CHECK-LABEL: fn main(
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fn main() {
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// CHECK: debug b => [[b:_.*]];
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// CHECK: debug c => [[c:_.*]];
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// CHECK: debug d => [[d:_.*]];
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// CHECK: debug e => [[e:_.*]];
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let a = 1;
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// CHECK: switchInt(const true) -> [0: {{bb.*}}, otherwise: {{bb.*}}];
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// CHECK: [[b]] = const 2_i32;
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let b = if a == 1 { 2 } else { 3 };
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// CHECK: [[c]] = const 3_i32;
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let c = b + 1;
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// CHECK: switchInt(const true) -> [0: {{bb.*}}, otherwise: {{bb.*}}];
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// CHECK: [[d]] = const 1_i32;
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let d = if a == 1 { a } else { a + 1 };
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// CHECK: [[e]] = const 2_i32;
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let e = d + 1;
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}
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