From 837b550238aa671a591ccf282dddeab29cadb206 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 04:49:42 +0200 Subject: Merging upstream version 1.71.1+dfsg1. Signed-off-by: Daniel Baumann --- tests/codegen/drop-in-place-noalias.rs | 38 ++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 tests/codegen/drop-in-place-noalias.rs (limited to 'tests/codegen/drop-in-place-noalias.rs') diff --git a/tests/codegen/drop-in-place-noalias.rs b/tests/codegen/drop-in-place-noalias.rs new file mode 100644 index 000000000..725e6fc04 --- /dev/null +++ b/tests/codegen/drop-in-place-noalias.rs @@ -0,0 +1,38 @@ +// compile-flags: -O -C no-prepopulate-passes + +// Tests that the compiler can apply `noalias` and other &mut attributes to `drop_in_place`. +// Note that non-Unpin types should not get `noalias`, matching &mut behavior. + +#![crate_type="lib"] + +use std::marker::PhantomPinned; + +// CHECK: define internal void @{{.*}}core{{.*}}ptr{{.*}}drop_in_place{{.*}}StructUnpin{{.*}}({{.*\*|ptr}} noalias noundef align 4 dereferenceable(12) %{{.+}}) + +// CHECK: define internal void @{{.*}}core{{.*}}ptr{{.*}}drop_in_place{{.*}}StructNotUnpin{{.*}}({{.*\*|ptr}} noundef nonnull align 4 %{{.+}}) + +pub struct StructUnpin { + a: i32, + b: i32, + c: i32, +} + +impl Drop for StructUnpin { + fn drop(&mut self) {} +} + +pub struct StructNotUnpin { + a: i32, + b: i32, + c: i32, + p: PhantomPinned, +} + +impl Drop for StructNotUnpin { + fn drop(&mut self) {} +} + +pub unsafe fn main(x: StructUnpin, y: StructNotUnpin) { + drop(x); + drop(y); +} -- cgit v1.2.3