[XLS] Only run LUT conversion pass once

This pass is about to get a bit too expensive to run in every fixed-point simplification pass. PiperOrigin-RevId: 700533971
google · Nov 27, 2024 · 62e2a7e · 62e2a7e
1 parent 693ecc2
commit 62e2a7e
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/xls/passes/optimization_pass_pipeline.cc b/xls/passes/optimization_pass_pipeline.cc
@@ -107,8 +107,6 @@ void AddSimplificationPasses(OptimizationCompoundPass& pass) {
   pass.Add<DeadCodeEliminationPass>();
   pass.Add<DataflowSimplificationPass>();
   pass.Add<DeadCodeEliminationPass>();
-  pass.Add<LutConversionPass>();
-  pass.Add<DeadCodeEliminationPass>();
   pass.Add<ConditionalSpecializationPass>(/*use_bdd=*/false);
   pass.Add<DeadCodeEliminationPass>();
   pass.Add<ReassociationPass>();
@@ -258,6 +256,9 @@ class PostInliningOptPassGroup : public OptimizationCompoundPass {
     Add<SelectLiftingPass>();
     Add<DeadCodeEliminationPass>();
 
+    Add<LutConversionPass>();
+    Add<DeadCodeEliminationPass>();
+
     Add<ConditionalSpecializationPass>(/*use_bdd=*/true);
     Add<DeadCodeEliminationPass>();