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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/bool-cmp.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/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) +} |