| //@ compile-flags: -Copt-level=3 | |
| #![crate_type = "lib"] | |
| // CHECK-LABEL: @write_u8_variant_a | |
| // CHECK-NEXT: {{.*}}: | |
| // CHECK-NEXT: icmp ugt | |
| // CHECK-NEXT: getelementptr | |
| // CHECK-NEXT: select i1 {{.+}} null | |
| // CHECK-NEXT: insertvalue | |
| // CHECK-NEXT: insertvalue | |
| // CHECK-NEXT: ret | |
| #[no_mangle] | |
| pub fn write_u8_variant_a(bytes: &mut [u8], buf: u8, offset: usize) -> Option<&mut [u8]> { | |
| let buf = buf.to_le_bytes(); | |
| bytes.get_mut(offset..).and_then(|bytes| bytes.get_mut(..buf.len())) | |
| } |