File: fixed-x18.rs

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// Test that the `reserve-x18` target feature is (not) emitted when
// the `-Zfixed-x18` flag is (not) set.

//@ revisions: unset set
//@ needs-llvm-components: aarch64
//@ compile-flags: --target aarch64-unknown-none
//@ [set] compile-flags: -Zfixed-x18

#![crate_type = "lib"]
#![feature(no_core, lang_items)]
#![no_core]

#[lang = "sized"]
trait Sized {}

#[no_mangle]
pub fn foo() {
    // CHECK: @foo() unnamed_addr #0

    // unset-NOT: attributes #0 = { {{.*}}"target-features"="{{[^"]*}}+reserve-x18{{.*}} }
    // set: attributes #0 = { {{.*}}"target-features"="{{[^"]*}}+reserve-x18{{.*}} }
}