8324688: C2: Disable ReduceAllocationMerges by default

Reviewed-by: thartmann, kvn
openjdk · Jan 26, 2024 · b7f38fc · b7f38fc · openjdk-notifier · Jan 26, 2024
1 parent 57bc96e
commit b7f38fc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/hotspot/share/opto/c2_globals.hpp b/src/hotspot/share/opto/c2_globals.hpp
@@ -467,7 +467,7 @@
   develop(bool, TracePostallocExpand, false, "Trace expanding nodes after"  \
           " register allocation.")                                          \
                                                                             \
-  product(bool, ReduceAllocationMerges, true, DIAGNOSTIC,                   \
+  product(bool, ReduceAllocationMerges, false, DIAGNOSTIC,                  \
           "Try to simplify allocation merges before Scalar Replacement")    \
                                                                             \
   notproduct(bool, TraceReduceAllocationMerges, false,                      \