28 lines
579 B
Rust
28 lines
579 B
Rust
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// compile-flags: -O
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// min-llvm-version: 17
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// only-x86_64-unknown-linux-gnu
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// We want to check that this function does not mis-optimize to loop jumping.
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#![crate_type = "lib"]
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#[repr(C)]
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pub enum Expr {
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Sum,
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// must have more than usize data
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Sub(usize, u8),
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}
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#[no_mangle]
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pub extern "C" fn issue_114312(expr: Expr) {
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// CHECK-LABEL: @issue_114312(
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// CHECK-NOT: readonly
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// CHECK-SAME: byval
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// CHECK-NEXT: start:
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// CHECK-NEXT: ret void
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match expr {
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Expr::Sum => {}
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Expr::Sub(_, _) => issue_114312(Expr::Sum),
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}
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}
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