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| author | bors <bors@rust-lang.org> | 2019-02-24 14:15:55 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2019-02-24 14:15:55 +0000 |
| commit | 097c04cf433048585dd9e3f63b30e03cc3509e4b (patch) | |
| tree | 2eede5dc9fa313a4df57e6215f019f5e08028568 /src/test/codegen | |
| parent | e17c48e2f21eefd59748e364234efc7037a3ec96 (diff) | |
| parent | 94aa74004efddf0cfb6fe4bb65eee9effbe40ae8 (diff) | |
| download | rust-097c04cf433048585dd9e3f63b30e03cc3509e4b.tar.gz rust-097c04cf433048585dd9e3f63b30e03cc3509e4b.zip | |
Auto merge of #58315 - gnzlbg:returns_twice, r=alexcrichton
Implement unstable ffi_return_twice attribute This PR implements [RFC2633](https://github.com/rust-lang/rfcs/pull/2633) r? @eddyb
Diffstat (limited to 'src/test/codegen')
| -rw-r--r-- | src/test/codegen/ffi-returns-twice.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/test/codegen/ffi-returns-twice.rs b/src/test/codegen/ffi-returns-twice.rs new file mode 100644 index 00000000000..4db328f1cdf --- /dev/null +++ b/src/test/codegen/ffi-returns-twice.rs @@ -0,0 +1,12 @@ +// compile-flags: -C no-prepopulate-passes +#![crate_type = "lib"] +#![feature(ffi_returns_twice)] + +pub fn bar() { unsafe { foo() } } + +extern { + // CHECK-LABEL: declare void @foo() + // CHECK-SAME: [[ATTRS:#[0-9]+]] + // CHECK-DAG: attributes [[ATTRS]] = { {{.*}}returns_twice{{.*}} } + #[ffi_returns_twice] pub fn foo(); +} |