rust/tests/mir-opt/inline/inline_diverging.rs

49 lines
918 B
Rust

// Tests inlining of diverging calls.
//
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
//@ compile-flags: -Zinline-mir-hint-threshold=1000 -C debuginfo=full
#![crate_type = "lib"]
// EMIT_MIR inline_diverging.f.Inline.diff
pub fn f() {
// CHECK-LABEL: fn f(
// CHECK: (inlined sleep)
sleep();
}
// EMIT_MIR inline_diverging.g.Inline.diff
pub fn g(i: i32) -> u32 {
if i > 0 {
i as u32
} else {
// CHECK-LABEL: fn g(
// CHECK: (inlined panic)
panic();
}
}
// EMIT_MIR inline_diverging.h.Inline.diff
pub fn h() {
// CHECK-LABEL: fn h(
// CHECK: (inlined call_twice::<!, fn() -> ! {sleep}>)
// CHECK-NOT: inlined
call_twice(sleep);
}
#[inline(always)]
pub fn call_twice<R, F: Fn() -> R>(f: F) -> (R, R) {
let a = f();
let b = f();
(a, b)
}
#[inline(always)]
fn panic() -> ! {
panic!();
}
#[inline(always)]
fn sleep() -> ! {
loop {}
}