rust/tests/codegen/issues/issue-103285-ptr-addr-overflow-check.rs

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// compile-flags: -O -C debug-assertions=yes
#![crate_type = "lib"]
#![feature(strict_provenance)]
#[no_mangle]
pub fn test(src: *const u8, dst: *const u8) -> usize {
// CHECK-LABEL: @test(
// CHECK-NOT: panic
let src_usize = src.addr();
let dst_usize = dst.addr();
if src_usize > dst_usize {
return src_usize - dst_usize;
}
return 0;
}