39 lines
1.0 KiB
Rust
39 lines
1.0 KiB
Rust
// skip-filecheck
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// unit-test: DataflowConstProp
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// EMIT_MIR_FOR_EACH_BIT_WIDTH
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#[derive(Copy, Clone)]
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struct S(i32);
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#[derive(Copy, Clone)]
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struct SmallStruct(f32, Option<S>, &'static [f32]);
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#[derive(Copy, Clone)]
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struct BigStruct(f32, Option<S>, &'static [f32]);
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// EMIT_MIR struct.main.DataflowConstProp.diff
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fn main() {
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let mut s = S(1);
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let a = s.0 + 2;
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s.0 = 3;
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let b = a + s.0;
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const SMALL_VAL: SmallStruct = SmallStruct(4., Some(S(1)), &[]);
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let SmallStruct(a, b, c) = SMALL_VAL;
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static SMALL_STAT: &SmallStruct = &SmallStruct(9., None, &[13.]);
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let SmallStruct(a, b, c) = *SMALL_STAT;
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let ss = SmallStruct(a, b, c);
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const BIG_VAL: BigStruct = BigStruct(25., None, &[]);
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let BigStruct(a, b, c) = BIG_VAL;
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static BIG_STAT: &BigStruct = &BigStruct(82., Some(S(35)), &[45., 72.]);
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let BigStruct(a, b, c) = *BIG_STAT;
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// We arbitrarily limit the size of synthetized values to 4 pointers.
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// `BigStruct` can be read, but we will keep a MIR aggregate for this.
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let bs = BigStruct(a, b, c);
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}
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