File: target-feature-overrides.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 (47 lines) | stat: -rw-r--r-- 1,256 bytes parent folder | download | duplicates (2)
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
37
38
39
40
41
42
43
44
45
46
47
//@ revisions: COMPAT INCOMPAT
//@ needs-llvm-components: x86
//@ compile-flags: --target=x86_64-unknown-linux-gnu -Copt-level=3
//@ [COMPAT] compile-flags: -Ctarget-feature=+avx2,+avx
//@ [INCOMPAT] compile-flags: -Ctarget-feature=-avx2,-avx

// See also tests/assembly/target-feature-multiple.rs
#![feature(no_core, lang_items)]
#![crate_type = "lib"]
#![no_core]


#[lang = "sized"]
trait Sized {}
#[lang = "copy"]
trait Copy {}

extern "C" {
    fn peach() -> u32;
}

#[inline]
#[target_feature(enable = "avx")]
#[no_mangle]
pub unsafe fn apple() -> u32 {
// CHECK-LABEL: @apple()
// CHECK-SAME: [[APPLEATTRS:#[0-9]+]] {
// CHECK: {{.*}}call{{.*}}@peach
    peach()
}

// target features same as global
#[no_mangle]
pub unsafe fn banana() -> u32 {
// CHECK-LABEL: @banana()
// CHECK-SAME: [[BANANAATTRS:#[0-9]+]] {
// COMPAT: {{.*}}call{{.*}}@peach
// INCOMPAT: {{.*}}call{{.*}}@apple
    apple() // Compatible for inline in COMPAT revision and can't be inlined in INCOMPAT
}

// CHECK: attributes [[APPLEATTRS]]
// COMPAT-SAME: "target-features"="+avx2,+avx,+avx"
// INCOMPAT-SAME: "target-features"="-avx2,-avx,+avx"
// CHECK: attributes [[BANANAATTRS]]
// COMPAT-SAME: "target-features"="+avx2,+avx"
// INCOMPAT-SAME: "target-features"="-avx2,-avx"