changeset 60124:6308389bdc83

8239069: C2: SIGSEGV in IdealGraphPrinter::walk_nodes due to C->root() being NULL Summary: Fix NULL pointer dereference when trying to print the ideal graph when Compile::record_failure() is called twice. Reviewed-by: neliasso, thartmann
author chagedorn
date Mon, 17 Feb 2020 12:29:24 +0100
parents b4a8d0c9da88
children 140261de4a17
files src/hotspot/share/opto/idealGraphPrinter.cpp
diffstat 1 files changed, 1 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/src/hotspot/share/opto/idealGraphPrinter.cpp	Mon Feb 17 12:29:03 2020 +0100
+++ b/src/hotspot/share/opto/idealGraphPrinter.cpp	Mon Feb 17 12:29:24 2020 +0100
@@ -664,7 +664,7 @@
 // Print current ideal graph
 void IdealGraphPrinter::print(const char *name, Node *node) {
 
-  if (!_current_method || !_should_send_method) return;
+  if (!_current_method || !_should_send_method || node == NULL) return;
 
   // Warning, unsafe cast?
   _chaitin = (PhaseChaitin *)C->regalloc();