mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 10:45:18 +00:00
71 lines
1.8 KiB
Rust
71 lines
1.8 KiB
Rust
// Test SPARC64 ABI
|
|
// - float structure members are passes in floating point registers
|
|
// (#86163)
|
|
|
|
// assembly-output: emit-asm
|
|
// needs-llvm-components: sparc
|
|
// compile-flags: --target=sparcv9-sun-solaris -Copt-level=3
|
|
#![crate_type = "lib"]
|
|
#![feature(no_core, lang_items)]
|
|
#![no_core]
|
|
|
|
#[lang = "sized"]
|
|
pub trait Sized {}
|
|
#[lang = "copy"]
|
|
pub trait Copy {}
|
|
impl Copy for f32 {}
|
|
|
|
#[repr(C)]
|
|
pub struct Franta {
|
|
a: f32,
|
|
b: f32,
|
|
c: f32,
|
|
d: f32,
|
|
}
|
|
|
|
// NB: due to delay slots the `ld` following the call is actually executed before the call.
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn callee(arg: Franta) {
|
|
// CHECK-LABEL: callee:
|
|
// CHECK: st %f3, [[PLACE_D:.*]]
|
|
// CHECK: st %f2, [[PLACE_C:.*]]
|
|
// CHECK: st %f1, [[PLACE_B:.*]]
|
|
// CHECK: st %f0, [[PLACE_A:.*]]
|
|
// CHECK: call tst_use
|
|
// CHECK-NEXT: ld [[PLACE_A]], %f1
|
|
// CHECK: call tst_use
|
|
// CHECK-NEXT: ld [[PLACE_B]], %f1
|
|
// CHECK: call tst_use
|
|
// CHECK-NEXT: ld [[PLACE_C]], %f1
|
|
// CHECK: call tst_use
|
|
// CHECK-NEXT: ld [[PLACE_D]], %f1
|
|
clobber();
|
|
tst_use(arg.a);
|
|
tst_use(arg.b);
|
|
tst_use(arg.c);
|
|
tst_use(arg.d);
|
|
tail_call_avoidance_fn();
|
|
}
|
|
|
|
extern "C" {
|
|
fn opaque_callee(arg: Franta, intarg: i32);
|
|
fn tst_use(arg: f32);
|
|
fn clobber();
|
|
// This exists so that post-https://reviews.llvm.org/D138741 LLVM doesn't
|
|
// tail-call away some of our assertions.
|
|
fn tail_call_avoidance_fn();
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn caller() {
|
|
// CHECK-LABEL: caller:
|
|
// CHECK: ld [{{.*}}], %f0
|
|
// CHECK: ld [{{.*}}], %f1
|
|
// CHECK: ld [{{.*}}], %f2
|
|
// CHECK: ld [{{.*}}], %f3
|
|
// CHECK: call opaque_callee
|
|
// CHECK: mov 3, %o2
|
|
opaque_callee(Franta { a: 1.0, b: 2.0, c: 3.0, d: 4.0 }, 3);
|
|
tail_call_avoidance_fn();
|
|
}
|