| //@ add-minicore |
| //@ compile-flags: --target bpfel-unknown-none |
| //@ needs-llvm-components: bpf |
| |
| #![crate_type = "rlib"] |
| #![feature(no_core, asm_experimental_arch)] |
| #![no_core] |
| |
| extern crate minicore; |
| use minicore::*; |
| |
| // CHECK-LABEL: @flags_clobber |
| // CHECK: call void asm sideeffect "", ""() |
| #[no_mangle] |
| pub unsafe fn flags_clobber() { |
| asm!("", options(nostack, nomem)); |
| } |
| |
| // CHECK-LABEL: @no_clobber |
| // CHECK: call void asm sideeffect "", ""() |
| #[no_mangle] |
| pub unsafe fn no_clobber() { |
| asm!("", options(nostack, nomem, preserves_flags)); |
| } |
| |
| // CHECK-LABEL: @clobber_abi |
| // CHECK: asm sideeffect "", "={r0},={r1},={r2},={r3},={r4},={r5}"() |
| #[no_mangle] |
| pub unsafe fn clobber_abi() { |
| asm!("", clobber_abi("C"), options(nostack, nomem, preserves_flags)); |
| } |
