diff options
Diffstat (limited to 'tests/codegen-llvm/asm/bpf-clobbers.rs')
| -rw-r--r-- | tests/codegen-llvm/asm/bpf-clobbers.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/codegen-llvm/asm/bpf-clobbers.rs b/tests/codegen-llvm/asm/bpf-clobbers.rs new file mode 100644 index 00000000000..1117549b1ec --- /dev/null +++ b/tests/codegen-llvm/asm/bpf-clobbers.rs @@ -0,0 +1,31 @@ +//@ add-core-stubs +//@ 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)); +} |
