88 lines
2.1 KiB
Rust
88 lines
2.1 KiB
Rust
// ignore-tidy-linelength
|
|
|
|
// compile-flags: -C no-prepopulate-passes
|
|
|
|
#![crate_type = "lib"]
|
|
#![feature(naked_functions)]
|
|
|
|
// CHECK: Function Attrs: naked
|
|
// CHECK-NEXT: define void @naked_empty()
|
|
#[no_mangle]
|
|
#[naked]
|
|
pub fn naked_empty() {
|
|
// CHECK-NEXT: {{.+}}:
|
|
// CHECK-NEXT: ret void
|
|
}
|
|
|
|
// CHECK: Function Attrs: naked
|
|
#[no_mangle]
|
|
#[naked]
|
|
// CHECK-NEXT: define void @naked_with_args(i{{[0-9]+}})
|
|
pub fn naked_with_args(a: isize) {
|
|
// CHECK-NEXT: {{.+}}:
|
|
// CHECK-NEXT: %a = alloca i{{[0-9]+}}
|
|
&a; // keep variable in an alloca
|
|
// CHECK: ret void
|
|
}
|
|
|
|
// CHECK: Function Attrs: naked
|
|
// CHECK-NEXT: define i{{[0-9]+}} @naked_with_return()
|
|
#[no_mangle]
|
|
#[naked]
|
|
pub fn naked_with_return() -> isize {
|
|
// CHECK-NEXT: {{.+}}:
|
|
// CHECK-NEXT: ret i{{[0-9]+}} 0
|
|
0
|
|
}
|
|
|
|
// CHECK: Function Attrs: naked
|
|
// CHECK-NEXT: define i{{[0-9]+}} @naked_with_args_and_return(i{{[0-9]+}})
|
|
#[no_mangle]
|
|
#[naked]
|
|
pub fn naked_with_args_and_return(a: isize) -> isize {
|
|
// CHECK-NEXT: {{.+}}:
|
|
// CHECK-NEXT: %a = alloca i{{[0-9]+}}
|
|
&a; // keep variable in an alloca
|
|
// CHECK: ret i{{[0-9]+}} %{{[0-9]+}}
|
|
a
|
|
}
|
|
|
|
// CHECK: Function Attrs: naked
|
|
// CHECK-NEXT: define void @naked_recursive()
|
|
#[no_mangle]
|
|
#[naked]
|
|
pub fn naked_recursive() {
|
|
// CHECK-NEXT: {{.+}}:
|
|
// CHECK-NEXT: call void @naked_empty()
|
|
|
|
// FIXME(#39685) Avoid one block per call.
|
|
// CHECK-NEXT: br label %bb1
|
|
// CHECK: bb1:
|
|
|
|
naked_empty();
|
|
|
|
// CHECK-NEXT: %{{[0-9]+}} = call i{{[0-9]+}} @naked_with_return()
|
|
|
|
// FIXME(#39685) Avoid one block per call.
|
|
// CHECK-NEXT: br label %bb2
|
|
// CHECK: bb2:
|
|
|
|
// CHECK-NEXT: %{{[0-9]+}} = call i{{[0-9]+}} @naked_with_args_and_return(i{{[0-9]+}} %{{[0-9]+}})
|
|
|
|
// FIXME(#39685) Avoid one block per call.
|
|
// CHECK-NEXT: br label %bb3
|
|
// CHECK: bb3:
|
|
|
|
// CHECK-NEXT: call void @naked_with_args(i{{[0-9]+}} %{{[0-9]+}})
|
|
|
|
// FIXME(#39685) Avoid one block per call.
|
|
// CHECK-NEXT: br label %bb4
|
|
// CHECK: bb4:
|
|
|
|
naked_with_args(
|
|
naked_with_args_and_return(
|
|
naked_with_return()
|
|
)
|
|
);
|
|
// CHECK-NEXT: ret void
|
|
}
|