mirror of https://github.com/rust-lang/rust
18 lines
468 B
Rust
18 lines
468 B
Rust
//@ test-mir-pass: GVN
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// EMIT_MIR mutable_variable_aggregate_mut_ref.main.GVN.diff
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fn main() {
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// CHECK-LABEL: fn main(
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// CHECK: debug x => [[x:_.*]];
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// CHECK: debug z => [[z:_.*]];
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// CHECK: debug y => [[y:_.*]];
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// CHECK: [[x]] = const (42_i32, 43_i32);
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// CHECK: [[z]] = &mut [[x]];
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// CHECK: ((*[[z]]).1: i32) = const 99_i32;
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// CHECK: [[y]] = [[x]];
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let mut x = (42, 43);
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let z = &mut x;
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z.1 = 99;
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let y = x;
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}
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