From a55568b0c480b8a4ba7cf2f24ff2bb41cfc759ff Mon Sep 17 00:00:00 2001 From: gingerBill Date: Mon, 23 Nov 2020 19:14:36 +0000 Subject: Make hash internal key be `uintptr` rather than `u64` to reduce entry size --- src/llvm_backend.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'src/llvm_backend.cpp') diff --git a/src/llvm_backend.cpp b/src/llvm_backend.cpp index f41f206b9..5bbccc18a 100644 --- a/src/llvm_backend.cpp +++ b/src/llvm_backend.cpp @@ -10272,7 +10272,10 @@ lbValue lb_gen_map_key(lbProcedure *p, lbValue key, Type *key_type) { if (lb_is_const(str)) { String v = lb_get_const_string(p->module, str); u64 hs = fnv64a(v.text, v.len); - hashed_str = lb_const_int(p->module, t_u64, hs); + if (build_context.word_size == 4) { + hs &= 0xffffffff; + } + hashed_str = lb_const_int(p->module, t_uintptr, hs); } else { auto args = array_make(permanent_allocator(), 1); args[0] = str; @@ -10287,7 +10290,6 @@ lbValue lb_gen_map_key(lbProcedure *p, lbValue key, Type *key_type) { args[0] = lb_address_from_load_or_generate_local(p, key); args[1] = lb_const_int(p->module, t_int, sz); lbValue hash = lb_emit_runtime_call(p, "default_hash_ptr", args); - lb_emit_store(p, lb_emit_struct_ep(p, vp, 0), hash); } } -- cgit v1.2.3