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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/codegen/bool-cmp.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/bool-cmp.rs')
-rw-r--r-- | tests/codegen/bool-cmp.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/codegen/bool-cmp.rs b/tests/codegen/bool-cmp.rs new file mode 100644 index 000000000..5090f7c37 --- /dev/null +++ b/tests/codegen/bool-cmp.rs @@ -0,0 +1,18 @@ +// This is a test for optimal Ord trait implementation for bool. +// See <https://github.com/rust-lang/rust/issues/66780> for more info. + +// compile-flags: -C opt-level=3 + +#![crate_type = "lib"] + +use std::cmp::Ordering; + +// CHECK-LABEL: @cmp_bool +#[no_mangle] +pub fn cmp_bool(a: bool, b: bool) -> Ordering { +// LLVM 10 produces (zext a) + (sext b), but the final lowering is (zext a) - (zext b). +// CHECK: zext i1 +// CHECK: {{z|s}}ext i1 +// CHECK: {{sub|add}} nsw + a.cmp(&b) +} |