rust/tests/assembly/x86_64-function-return.rs
Mads Marquart e6b9bb7b72 Make more of the test suite run on Mac Catalyst
This adds the `only-apple`/`ignore-apple` compiletest directive, and
uses that basically everywhere instead of `only-macos`/`ignore-macos`.

Some of the updates in `run-make` are a bit redundant, as they use
`ignore-cross-compile` and won't run on iOS - but using Apple in these
is still more correct, so I've made that change anyhow.
2024-05-28 12:31:33 +02:00

31 lines
1.1 KiB
Rust

// Test that the function return is (not) converted into a jump to the thunk
// when the `-Zfunction-return={keep,thunk-extern}` flag is (not) set.
//@ revisions: unset keep thunk-extern keep-thunk-extern thunk-extern-keep
//@ assembly-output: emit-asm
//@ compile-flags: -O
//@ [keep] compile-flags: -Zfunction-return=keep
//@ [thunk-extern] compile-flags: -Zfunction-return=thunk-extern
//@ [keep-thunk-extern] compile-flags: -Zfunction-return=keep -Zfunction-return=thunk-extern
//@ [thunk-extern-keep] compile-flags: -Zfunction-return=thunk-extern -Zfunction-return=keep
//@ only-x86_64
//@ ignore-apple Symbol is called `___x86_return_thunk` (Darwin's extra underscore)
//@ ignore-sgx Tests incompatible with LVI mitigations
#![crate_type = "lib"]
// CHECK-LABEL: foo:
#[no_mangle]
pub unsafe fn foo() {
// unset: ret
// unset-NOT: jmp __x86_return_thunk
// keep: ret
// keep-NOT: jmp __x86_return_thunk
// thunk-extern: jmp __x86_return_thunk
// thunk-extern-NOT: ret
// keep-thunk-extern: jmp __x86_return_thunk
// keep-thunk-extern-NOT: ret
// thunk-extern-keep: ret
// thunk-extern-keep-NOT: jmp __x86_return_thunk
}