e32da12753
Fixes the formatting for inline assembly clobbers used in the book. As this causes llvm to silently ignore the clobber an error is also added to catch cases in which the wrong formatting was used. Additionally a test case is added to confirm that this error works.
27 lines
830 B
Rust
27 lines
830 B
Rust
// Copyright 2016 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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// ignore-android
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// ignore-arm
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// ignore-aarch64
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#![feature(asm, rustc_attrs)]
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#[cfg(any(target_arch = "x86",
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target_arch = "x86_64"))]
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#[rustc_error]
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pub fn main() {
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unsafe {
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// clobber formatted as register input/output
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asm!("xor %eax, %eax" : : : "{eax}");
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//~^ ERROR clobber should not be surrounded by braces
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}
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}
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