From fda5eecd6717eb6e1db56be3e41b65deae6e683e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roberto=20Casta=C3=B1eda=20Lozano?=
 <rcastanedalo@openjdk.org>
Date: Tue, 8 Apr 2025 08:27:00 +0000
Subject: [PATCH] 8353669: IGV: dump OOP maps for MachSafePoint nodes

Reviewed-by: chagedorn, thartmann
---
 src/hotspot/share/opto/idealGraphPrinter.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/hotspot/share/opto/idealGraphPrinter.cpp b/src/hotspot/share/opto/idealGraphPrinter.cpp
index f6ec1a72506..47cc66c4cf0 100644
--- a/src/hotspot/share/opto/idealGraphPrinter.cpp
+++ b/src/hotspot/share/opto/idealGraphPrinter.cpp
@@ -667,6 +667,15 @@ void IdealGraphPrinter::visit_node(Node* n, bool edges) {
       print_prop("lrg", lrg_id);
     }
 
+    if (node->is_MachSafePoint()) {
+      const OopMap* oopmap = node->as_MachSafePoint()->oop_map();
+      if (oopmap != nullptr) {
+        stringStream oopmap_stream;
+        oopmap->print_on(&oopmap_stream);
+        print_prop("oopmap", oopmap_stream.freeze());
+      }
+    }
+
     Compile::current()->_in_dump_cnt--;
 
     tail(PROPERTIES_ELEMENT);