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//! Check that `String::push` is optimized enough not to call `memcpy`.
//@ compile-flags: -O
#![crate_type = "lib"]
// CHECK-LABEL: @string_push_does_not_call_memcpy
#[no_mangle]
pub fn string_push_does_not_call_memcpy(s: &mut String, ch: char) {
// CHECK-NOT: call void @llvm.memcpy
s.push(ch);
}
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