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Partly disable simplified-type glue optimization due to compile-time cost.

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This commit is contained in:
Graydon Hoare 2011-04-27 16:03:45 +00:00
parent 05587ebdff
commit 031e86ca2d
1 changed files with 11 additions and 1 deletions
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12
src/comp/middle/trans.rs
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@ -1617,14 +1617,24 @@ fn get_static_tydesc(&@block_ctxt cx,
ret info;
}
case (none[@tydesc_info]) {
// FIXME: Use of a simplified tydesc (w/o names) removes a lot of
// generated glue, but the compile time goes way down due to
// greatly increasing the miss rate on the type_of cache elsewhere
// in this file. Experiment with other approaches to this.
/*
fn simplifier(ty.t typ) -> ty.t {
ret @rec(cname=none[str] with *typ);
}
auto f = simplifier;
auto t_simplified = ty.fold_ty(cx.fcx.lcx.ccx.tcx, f, t);
auto info = declare_tydesc(cx.fcx.lcx, t_simplified);
cx.fcx.lcx.ccx.tydescs.insert(t, info);
cx.fcx.lcx.ccx.tydescs.insert(t_simplified, info);
*/
auto info = declare_tydesc(cx.fcx.lcx, t);
cx.fcx.lcx.ccx.tydescs.insert(t, info);
define_tydesc(cx.fcx.lcx, t, ty_params);
ret info;
}