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-rw-r--r--techlibs/common/prep.cc4
1 files changed, 2 insertions, 2 deletions
diff --git a/techlibs/common/prep.cc b/techlibs/common/prep.cc
index 8bae920d0..911737947 100644
--- a/techlibs/common/prep.cc
+++ b/techlibs/common/prep.cc
@@ -69,7 +69,7 @@ struct PrepPass : public Pass {
log("\n");
log(" prep:\n");
log(" proc\n");
- log(" opt_const\n");
+ log(" opt_expr -keepdc\n");
log(" opt_clean\n");
log(" check\n");
log(" opt -keepdc\n");
@@ -134,7 +134,7 @@ struct PrepPass : public Pass {
if (check_label(active, run_from, run_to, "coarse"))
{
Pass::call(design, "proc");
- Pass::call(design, "opt_const");
+ Pass::call(design, "opt_expr -keepdc");
Pass::call(design, "opt_clean");
Pass::call(design, "check");
Pass::call(design, "opt -keepdc");