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Allow indirect operands to be used as inputs for inline asm

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Amanieu d'Antras 2015-11-03 15:19:46 +00:00
parent f18c905163
commit 1805e5fb48
1 changed files with 2 additions and 2 deletions
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4
src/libsyntax/ext/asm.rs
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@ -139,9 +139,9 @@ pub fn expand_asm<'cx>(cx: &'cx mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
let (constraint, _str_style) = panictry!(p.parse_str()); let (constraint, _str_style) = panictry!(p.parse_str());
if constraint.starts_with("=") { if constraint.starts_with("=") && !constraint.contains("*") {
cx.span_err(p.last_span, "input operand constraint contains '='"); cx.span_err(p.last_span, "input operand constraint contains '='");
} else if constraint.starts_with("+") { } else if constraint.starts_with("+") && !constraint.contains("*") {
cx.span_err(p.last_span, "input operand constraint contains '+'"); cx.span_err(p.last_span, "input operand constraint contains '+'");
} }