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// min-llvm-version: 15.0.0
// ignore-debug: The debug assertions get in the way
// compile-flags: -O
#![crate_type = "lib"]
// There should be no calls to panic / len_mismatch_fail.
#[no_mangle]
pub fn test(a: &mut [u8], offset: usize, bytes: &[u8]) {
// CHECK-LABEL: @test(
// CHECK-NOT: call
// CHECK: call void @llvm.memcpy
// CHECK-NOT: call
// CHECK: }
if let Some(dst) = a.get_mut(offset..offset + bytes.len()) {
dst.copy_from_slice(bytes);
}
}
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