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| author | Lzu Tao <taolzu@gmail.com> | 2024-05-20 19:52:30 +0000 |
|---|---|---|
| committer | Lzu Tao <taolzu@gmail.com> | 2024-06-09 07:35:24 +0000 |
| commit | 7d967ffa8df2ae74e4cff5d5ed7b53adedac00a2 (patch) | |
| tree | eada31e461760cf90dbb8c68dd02ce5a5a87375e | |
| parent | ddb94dbd16760d6de5e3a9cbbffb66e161691786 (diff) | |
| download | rust-7d967ffa8df2ae74e4cff5d5ed7b53adedac00a2.tar.gz rust-7d967ffa8df2ae74e4cff5d5ed7b53adedac00a2.zip | |
add codegen test for #109328
| -rw-r--r-- | tests/codegen/issues/issue-109328-split_first.rs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tests/codegen/issues/issue-109328-split_first.rs b/tests/codegen/issues/issue-109328-split_first.rs new file mode 100644 index 00000000000..a43e653e1a2 --- /dev/null +++ b/tests/codegen/issues/issue-109328-split_first.rs @@ -0,0 +1,17 @@ +//@ compile-flags: -O +//@ min-llvm-version: 17 + +#![crate_type = "lib"] + +#[no_mangle] +// CHECK-LABEL: @foo +// CHECK: getelementptr inbounds +// CHECK-NEXT: load i64 +// CHECK-NEXT: icmp eq i64 +// CHECK-NEXT: br i1 +#[no_mangle] +pub fn foo(input: &mut &[u64]) -> Option<u64> { + let (first, rest) = input.split_first()?; + *input = rest; + Some(*first) +} |