summaryrefslogtreecommitdiffstats
path: root/tests/run-make/intrinsic-unreachable/exit-unreachable.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:29 +0000
commit631cd5845e8de329d0e227aaa707d7ea228b8f8f (patch)
treea1b87c8f8cad01cf18f7c5f57a08f102771ed303 /tests/run-make/intrinsic-unreachable/exit-unreachable.rs
parentAdding debian version 1.69.0+dfsg1-1. (diff)
downloadrustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.tar.xz
rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.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-unreachable.rs')
-rw-r--r--tests/run-make/intrinsic-unreachable/exit-unreachable.rs18
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/run-make/intrinsic-unreachable/exit-unreachable.rs b/tests/run-make/intrinsic-unreachable/exit-unreachable.rs
new file mode 100644
index 000000000..ec85db733
--- /dev/null
+++ b/tests/run-make/intrinsic-unreachable/exit-unreachable.rs
@@ -0,0 +1,18 @@
+#![feature(core_intrinsics)]
+#![crate_type="lib"]
+use std::arch::asm;
+
+use std::intrinsics;
+
+#[allow(unreachable_code)]
+pub fn exit(n: usize) -> i32 {
+ unsafe {
+ // Pretend this asm is an exit() syscall.
+ asm!("/*{0}*/", in(reg) n);
+ intrinsics::unreachable()
+ }
+ // 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
+}