File: intrinsics.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (36 lines) | stat: -rw-r--r-- 685 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
// skip-filecheck
//@ compile-flags: -O -C debuginfo=0 -Zmir-opt-level=2
//@ only-64bit

// Checks that we do not have any branches in the MIR for the two tested functions.

//@ compile-flags: -Cpanic=abort
#![feature(core_intrinsics)]
#![crate_type = "lib"]

// EMIT_MIR intrinsics.f_unit.PreCodegen.after.mir
pub fn f_unit() {
    f_dispatch(());
}


// EMIT_MIR intrinsics.f_u64.PreCodegen.after.mir
pub fn f_u64() {
    f_dispatch(0u64);
}

#[inline(always)]
pub fn f_dispatch<T>(t: T) {
    if std::mem::size_of::<T>() == 0 {
        f_zst(t);
    } else {
        f_non_zst(t);
    }
}

#[inline(never)]
pub fn f_zst<T>(_t: T) {
}

#[inline(never)]
pub fn f_non_zst<T>(_t: T) {}