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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/vec-shrink-panik.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/vec-shrink-panik.rs')
-rw-r--r-- | tests/codegen/vec-shrink-panik.rs | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tests/codegen/vec-shrink-panik.rs b/tests/codegen/vec-shrink-panik.rs new file mode 100644 index 000000000..aa6589dc3 --- /dev/null +++ b/tests/codegen/vec-shrink-panik.rs @@ -0,0 +1,47 @@ +// compile-flags: -O +// ignore-debug: the debug assertions get in the way +#![crate_type = "lib"] +#![feature(shrink_to)] + +// Make sure that `Vec::shrink_to_fit` never emits panics via `RawVec::shrink_to_fit`, +// "Tried to shrink to a larger capacity", because the length is *always* <= capacity. + +// CHECK-LABEL: @shrink_to_fit +#[no_mangle] +pub fn shrink_to_fit(vec: &mut Vec<u32>) { + // CHECK-NOT: panic + vec.shrink_to_fit(); +} + +// CHECK-LABEL: @issue71861 +#[no_mangle] +pub fn issue71861(vec: Vec<u32>) -> Box<[u32]> { + // CHECK-NOT: panic + + // Call to panic_cannot_unwind in case of double-panic is expected, + // but other panics are not. + // CHECK: cleanup + // CHECK-NEXT: ; call core::panicking::panic_cannot_unwind + // CHECK-NEXT: panic_cannot_unwind + + // CHECK-NOT: panic + vec.into_boxed_slice() +} + +// CHECK-LABEL: @issue75636 +#[no_mangle] +pub fn issue75636<'a>(iter: &[&'a str]) -> Box<[&'a str]> { + // CHECK-NOT: panic + + // Call to panic_cannot_unwind in case of double-panic is expected, + // but other panics are not. + // CHECK: cleanup + // CHECK-NEXT: ; call core::panicking::panic_cannot_unwind + // CHECK-NEXT: panic_cannot_unwind + + // CHECK-NOT: panic + iter.iter().copied().collect() +} + +// CHECK: ; core::panicking::panic_cannot_unwind +// CHECK: declare void @{{.*}}panic_cannot_unwind |