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debuginfo: Always copy args to allocas if debuginfo is enabled

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This commit is contained in:
Michael Woerister 2013-09-03 11:53:06 +02:00
parent c19f493129
commit 6b2df76c24
1 changed files with 10 additions and 12 deletions
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22
src/librustc/middle/trans/_match.rs
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@ -2000,19 +2000,17 @@ pub fn store_arg(mut bcx: @mut Block,
let arg_ty = node_id_type(bcx, pat.id);
add_clean(bcx, llval, arg_ty);
match simple_identifier(pat) {
Some(_) => {
// Optimized path for `x: T` case. This just adopts
// `llval` wholesale as the pointer for `x`, avoiding the
// general logic which may copy out of `llval`.
bcx.fcx.llargs.insert(pat.id, llval);
}
let fast_path = !bcx.ccx().sess.opts.extra_debuginfo && simple_identifier(pat).is_some();
None => {
// General path. Copy out the values that are used in the
// pattern.
bcx = bind_irrefutable_pat(bcx, pat, llval, BindArgument);
}
if fast_path {
// Optimized path for `x: T` case. This just adopts
// `llval` wholesale as the pointer for `x`, avoiding the
// general logic which may copy out of `llval`.
bcx.fcx.llargs.insert(pat.id, llval);
} else {
// General path. Copy out the values that are used in the
// pattern.
bcx = bind_irrefutable_pat(bcx, pat, llval, BindArgument);
}
return bcx;