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run extern "tail" with byval argument test #161912

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Merged
rust-bors merged 1 commit into from
Sep 8, 2026
+7 −7
Merged

run extern "tail" with byval argument test #161912

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14 changes: 7 additions & 7 deletions tests/ui/explicit-tail-calls/tailcc-no-signature-restriction.rs
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Original file line number Diff line number Diff line change
@@ -1,9 +1,9 @@
//@ run-pass
//@ ignore-backends: gcc
//@ min-llvm-version: 22
//@ revisions: x86_64 aarch64
//@ min-llvm-version: 23
//@ revisions: x86 x86_64 aarch64
//
// FIXME: enable x86 on LLVM 23.
//@ [x86] only-x86
//@ [x86_64] only-x86_64
//@ [aarch64] only-aarch64
#![feature(explicit_tail_calls, rust_tail_cc)]
Expand All @@ -18,6 +18,7 @@ pub extern "tail" fn add() -> u64 {
become add(1, 2);
}

#[cfg(all(any(target_arch = "x86", target_arch = "x86_64"), not(windows)))]
#[inline(never)]
pub extern "tail" fn pass_struct(a: u64, d: u64) -> u64 {
#[derive(Clone, Copy)]
Expand All @@ -42,8 +43,7 @@ pub extern "tail" fn pass_struct(a: u64, d: u64) -> u64 {
fn main() {
assert_eq!(add(), 3);

// FIXME: LLVM 22 has a bug which makes this miscompile.
if false {
assert_eq!(pass_struct(5, 6), 5 + 6);
}
// Windows and Aarch64 in LLVM 23 does not support byval arguments.
#[cfg(all(any(target_arch = "x86", target_arch = "x86_64"), not(windows)))]
assert_eq!(pass_struct(5, 6), 5 + 6);
}
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