15 lines
497 B
Rust
15 lines
497 B
Rust
// Ensure that we don't optimize out `SwitchInt` reads even if that terminator
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// branches to the same basic block on every target, since the operand may have
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// side-effects that affect analysis of the MIR.
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//
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// See <https://github.com/rust-lang/miri/issues/4237>.
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//@ test-mir-pass: SimplifyCfg-initial
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//@ compile-flags: -Zmir-preserve-ub
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// EMIT_MIR read_from_trivial_switch.main.SimplifyCfg-initial.diff
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fn main() {
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let ref_ = &1i32;
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// CHECK: switchInt
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let &(0 | _) = ref_;
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}
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