summaryrefslogtreecommitdiffstats
path: root/tests/run-make/intrinsic-unreachable/exit-ret.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:39 +0000
commit1376c5a617be5c25655d0d7cb63e3beaa5a6e026 (patch)
tree3bb8d61aee02bc7a15eab3f36e3b921afc2075d0 /tests/run-make/intrinsic-unreachable/exit-ret.rs
parentReleasing progress-linux version 1.69.0+dfsg1-1~progress7.99u1. (diff)
downloadrustc-1376c5a617be5c25655d0d7cb63e3beaa5a6e026.tar.xz
rustc-1376c5a617be5c25655d0d7cb63e3beaa5a6e026.zip
Merging upstream version 1.70.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/run-make/intrinsic-unreachable/exit-ret.rs')
-rw-r--r--tests/run-make/intrinsic-unreachable/exit-ret.rs14
1 files changed, 14 insertions, 0 deletions
diff --git a/tests/run-make/intrinsic-unreachable/exit-ret.rs b/tests/run-make/intrinsic-unreachable/exit-ret.rs
new file mode 100644
index 000000000..e7b9694d9
--- /dev/null
+++ b/tests/run-make/intrinsic-unreachable/exit-ret.rs
@@ -0,0 +1,14 @@
+#![crate_type="lib"]
+use std::arch::asm;
+
+#[deny(unreachable_code)]
+pub fn exit(n: usize) -> i32 {
+ unsafe {
+ // Pretend this asm is an exit() syscall.
+ asm!("/*{0}*/", in(reg) n);
+ }
+ // This return value is just here to generate some extra code for a return
+ // value, making it easier for the test script to detect whether the
+ // compiler deleted it.
+ 42
+}