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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
commit | 4f9fe856a25ab29345b90e7725509e9ee38a37be (patch) | |
tree | e4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /tests/codegen/option-as-slice.rs | |
parent | Adding upstream version 1.68.2+dfsg1. (diff) | |
download | rustc-upstream/1.69.0+dfsg1.tar.xz rustc-upstream/1.69.0+dfsg1.zip |
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/codegen/option-as-slice.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/codegen/option-as-slice.rs b/tests/codegen/option-as-slice.rs new file mode 100644 index 000000000..d5077dbf6 --- /dev/null +++ b/tests/codegen/option-as-slice.rs @@ -0,0 +1,28 @@ +// compile-flags: -O +// only-x86_64 + +#![crate_type = "lib"] +#![feature(option_as_slice)] + +extern crate core; + +use core::num::NonZeroU64; +use core::option::Option; + +// CHECK-LABEL: @u64_opt_as_slice +#[no_mangle] +pub fn u64_opt_as_slice(o: &Option<u64>) -> &[u64] { + // CHECK: start: + // CHECK-NOT: select + // CHECK: ret + o.as_slice() +} + +// CHECK-LABEL: @nonzero_u64_opt_as_slice +#[no_mangle] +pub fn nonzero_u64_opt_as_slice(o: &Option<NonZeroU64>) -> &[NonZeroU64] { + // CHECK: start: + // CHECK-NOT: select + // CHECK: ret + o.as_slice() +} |