49 lines
1.1 KiB
Rust
49 lines
1.1 KiB
Rust
// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Test that the compiler will catch invalid inline assembly constraints.
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// ignore-emscripten
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#![feature(asm)]
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extern "C" {
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fn foo(a: usize);
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}
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fn main() {
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bad_register_constraint();
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bad_input();
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wrong_size_output();
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}
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// Issue #54130
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fn bad_register_constraint() {
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let rax: u64;
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unsafe {
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asm!("" :"={rax"(rax)) //~ ERROR E0668
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};
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println!("Accumulator is: {}", rax);
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}
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// Issue #54376
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fn bad_input() {
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unsafe {
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asm!("callq $0" : : "0"(foo)) //~ ERROR E0668
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};
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}
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fn wrong_size_output() {
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let rax: u64 = 0;
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unsafe {
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asm!("addb $1, $0" : "={rax}"((0i32, rax))); //~ ERROR E0668
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}
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println!("rax: {}", rax);
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}
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