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rustc: Switch ty::node_type_table to smallintmap, cut 400mb memory use off a librustc build.

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Smallintmap was being populated with sparse keys during ast deserialization.
This commit is contained in:
Graydon Hoare 2013-05-27 19:47:40 -07:00
parent 2061ce9aff
commit 3c4ce79518
1 changed files with 2 additions and 2 deletions
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4
src/librustc/middle/ty.rs
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@ -907,7 +907,7 @@ type type_cache = @mut HashMap<ast::def_id, ty_param_bounds_and_ty>;
type constness_cache = @mut HashMap<ast::def_id, const_eval::constness>;
pub type node_type_table = @mut SmallIntMap<t>;
pub type node_type_table = @mut HashMap<uint,t>;
fn mk_rcache() -> creader_cache {
return @mut HashMap::new();
@ -934,7 +934,7 @@ pub fn mk_ctxt(s: session::Session,
def_map: dm,
region_maps: region_maps,
region_paramd_items: region_paramd_items,
node_types: @mut SmallIntMap::new(),
node_types: @mut HashMap::new(),
node_type_substs: @mut HashMap::new(),
trait_refs: @mut HashMap::new(),
trait_defs: @mut HashMap::new(),