Pool inst worklists and hashsets to avoid rehashing. (#2982)

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/source/slang/slang-ir-specialize.cpp b/source/slang/slang-ir-specialize.cpp
index 3fc3b153d..26f54a271 100644
--- a/source/slang/slang-ir-specialize.cpp
+++ b/source/slang/slang-ir-specialize.cpp
@@ -1339,8 +1339,8 @@ struct SpecializationContext
         // TODO: We probably need/want a more robust test here.
         // For now we are just look into the dependency graph of the inst and
         // see if there are any opcodes that are causing problems.
-        List<IRInst*> localWorkList;
-        HashSet<IRInst*> processedInsts;
+        InstWorkList localWorkList(inst->getModule());
+        InstHashSet processedInsts(inst->getModule());
         localWorkList.add(inst);
         processedInsts.add(inst);