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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
commit | 631cd5845e8de329d0e227aaa707d7ea228b8f8f (patch) | |
tree | a1b87c8f8cad01cf18f7c5f57a08f102771ed303 /tests/run-make/intrinsic-unreachable/exit-unreachable.rs | |
parent | Adding debian version 1.69.0+dfsg1-1. (diff) | |
download | rustc-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.rs | 18 |
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 +} |