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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/drop.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/drop.rs')
-rw-r--r-- | tests/codegen/drop.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/codegen/drop.rs b/tests/codegen/drop.rs new file mode 100644 index 000000000..994028271 --- /dev/null +++ b/tests/codegen/drop.rs @@ -0,0 +1,36 @@ +// ignore-wasm32-bare compiled with panic=abort by default +// compile-flags: -C no-prepopulate-passes + +#![crate_type = "lib"] + +struct SomeUniqueName; + +impl Drop for SomeUniqueName { + fn drop(&mut self) { + } +} + +pub fn possibly_unwinding() { +} + +// CHECK-LABEL: @droppy +#[no_mangle] +pub fn droppy() { +// Check that there are exactly 6 drop calls. The cleanups for the unwinding should be reused, so +// that's one new drop call per call to possibly_unwinding(), and finally 3 drop calls for the +// regular function exit. We used to have problems with quadratic growths of drop calls in such +// functions. +// FIXME(eddyb) the `void @` forces a match on the instruction, instead of the +// comment, that's `; call core::ptr::drop_in_place::<drop::SomeUniqueName>` +// for the `v0` mangling, should switch to matching on that once `legacy` is gone. +// CHECK-COUNT-6: {{(call|invoke) void @.*}}drop_in_place{{.*}}SomeUniqueName +// CHECK-NOT: {{(call|invoke) void @.*}}drop_in_place{{.*}}SomeUniqueName +// The next line checks for the } that ends the function definition +// CHECK-LABEL: {{^[}]}} + let _s = SomeUniqueName; + possibly_unwinding(); + let _s = SomeUniqueName; + possibly_unwinding(); + let _s = SomeUniqueName; + possibly_unwinding(); +} |