src/test/codegen/asm-powerpc-clobbers.rs

   1 // min-llvm-version: 10.0.1
   2 // revisions: powerpc powerpc64 powerpc64le
   3 //[powerpc] compile-flags: --target powerpc-unknown-linux-gnu
   4 //[powerpc] needs-llvm-components: powerpc
   5 //[powerpc64] compile-flags: --target powerpc64-unknown-linux-gnu
   6 //[powerpc64] needs-llvm-components: powerpc
   7 //[powerpc64le] compile-flags: --target powerpc64le-unknown-linux-gnu
   8 //[powerpc64le] needs-llvm-components: powerpc
   9
  10 #![crate_type = "rlib"]
  11 #![feature(no_core, rustc_attrs, lang_items)]
  12 #![no_core]
  13
  14 #[lang = "sized"]
  15 trait Sized {}
  16
  17 #[rustc_builtin_macro]
  18 macro_rules! asm {
  19     () => {};
  20 }
  21
  22 // CHECK-LABEL: @cr_clobber
  23 // CHECK: call void asm sideeffect "", "~{cr}"()
  24 #[no_mangle]
  25 pub unsafe fn cr_clobber() {
  26     asm!("", out("cr") _, options(nostack, nomem));
  27 }
  28
  29 // CHECK-LABEL: @cr0_clobber
  30 // CHECK: call void asm sideeffect "", "~{cr0}"()
  31 #[no_mangle]
  32 pub unsafe fn cr0_clobber() {
  33     asm!("", out("cr0") _, options(nostack, nomem));
  34 }
  35
  36 // CHECK-LABEL: @cr5_clobber
  37 // CHECK: call void asm sideeffect "", "~{cr5}"()
  38 #[no_mangle]
  39 pub unsafe fn cr5_clobber() {
  40     asm!("", out("cr5") _, options(nostack, nomem));
  41 }
  42
  43 // CHECK-LABEL: @xer_clobber
  44 // CHECK: call void asm sideeffect "", "~{xer}"()
  45 #[no_mangle]
  46 pub unsafe fn xer_clobber() {
  47     asm!("", out("xer") _, options(nostack, nomem));
  48 }