31 lines
657 B
Rust
31 lines
657 B
Rust
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
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// unit-test: DataflowConstProp
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#[inline(never)]
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fn escape<T>(x: &T) {}
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#[inline(never)]
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fn some_function() {}
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// EMIT_MIR ref_without_sb.main.DataflowConstProp.diff
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// CHECK-LABEL: fn main(
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fn main() {
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// CHECK: debug a => [[a:_.*]];
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// CHECK: debug b => [[b:_.*]];
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let mut a = 0;
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// CHECK: {{_.*}} = escape::<i32>(move {{_.*}}) -> {{.*}}
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escape(&a);
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a = 1;
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// CHECK: {{_.*}} = some_function() -> {{.*}}
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some_function();
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// This should currently not be propagated.
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// CHECK-NOT: [[b]] = const
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// CHECK: [[b]] = [[a]];
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// CHECK-NOT: [[b]] = const
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let b = a;
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}
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