From ba5b2f0b4b71662663a224f685b2b808d9c8f99a Mon Sep 17 00:00:00 2001 From: The 8472 Date: Mon, 12 Jun 2023 14:05:46 +0200 Subject: [PATCH] add codegen test for slice::Iter::fold --- tests/codegen/slice-iter-fold.rs | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 tests/codegen/slice-iter-fold.rs diff --git a/tests/codegen/slice-iter-fold.rs b/tests/codegen/slice-iter-fold.rs new file mode 100644 index 00000000000..9391c176130 --- /dev/null +++ b/tests/codegen/slice-iter-fold.rs @@ -0,0 +1,14 @@ +// ignore-debug: the debug assertions get in the way +// compile-flags: -O +// min-llvm-version: 16 +#![crate_type = "lib"] + +// CHECK-LABEL: @slice_fold_to_last +#[no_mangle] +pub fn slice_fold_to_last(slice: &[i32]) -> Option<&i32> { + // CHECK-NOT: loop + // CHECK-NOT: br + // CHECK-NOT: call + // CHECK: ret + slice.iter().fold(None, |_, i| Some(i)) +}