mirror of https://github.com/rust-lang/rust.git
19 lines
480 B
Rust
19 lines
480 B
Rust
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// This is a test for optimal Ord trait implementation for bool.
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// See <https://github.com/rust-lang/rust/issues/66780> for more info.
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//@ compile-flags: -C opt-level=3
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#![crate_type = "lib"]
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use std::cmp::Ordering;
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// CHECK-LABEL: @cmp_bool
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#[no_mangle]
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pub fn cmp_bool(a: bool, b: bool) -> Ordering {
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// LLVM 10 produces (zext a) + (sext b), but the final lowering is (zext a) - (zext b).
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// CHECK: zext i1
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// CHECK: {{z|s}}ext i1
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// CHECK: {{sub|add}} nsw
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a.cmp(&b)
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}
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