8366861: Phase AFTER_LOOP_OPTS printed even though the method has no …

…loops Reviewed-by: chagedorn, dfenacci
SAP · RealCLanger · Feb 5, 2026 · Jan 22, 2026 · Jan 22, 2026 · Jan 22, 2026
commit 6afc0d8f39390d474ce8ba16533c30b4c7770388
diff --git a/src/hotspot/share/opto/compile.cpp b/src/hotspot/share/opto/compile.cpp
@@ -1876,7 +1876,7 @@ void Compile::process_for_post_loop_opts_igvn(PhaseIterGVN& igvn) {
   // at least to this point, even if no loop optimizations were done.
   PhaseIdealLoop::verify(igvn);
 
-  if (has_loops() || _loop_opts_cnt > 0) {
+  if (_print_phase_loop_opts) {
     print_method(PHASE_AFTER_LOOP_OPTS, 2);
   }
   C->set_post_loop_opts_phase(); // no more loop opts allowed
@@ -2404,7 +2404,8 @@ void Compile::Optimize() {
 
   if (failing())  return;
 
-  if (has_loops()) {
+  _print_phase_loop_opts = has_loops();
+  if (_print_phase_loop_opts) {
     print_method(PHASE_BEFORE_LOOP_OPTS, 2);
   }
 

diff --git a/src/hotspot/share/opto/compile.hpp b/src/hotspot/share/opto/compile.hpp
@@ -355,6 +355,7 @@ class Compile : public Phase {
   bool                  _print_assembly;        // True if we should dump assembly code for this compilation
   bool                  _print_inlining;        // True if we should print inlining for this compilation
   bool                  _print_intrinsics;      // True if we should print intrinsics for this compilation
+  bool                  _print_phase_loop_opts; // True if we should print before and after loop opts phase
 #ifndef PRODUCT
   uint                  _phase_counter;         // Counter for the number of already printed phases
   uint                  _igv_idx;               // Counter for IGV node identifiers