# HG changeset patch
# User neliasso
# Date 1506674449 -7200
# Node ID e4a5b535c0d2e946b8391bcbb923d5f89a5d7cc6
# Parent  3a45532a1854fe0543d24d5ae8a3dcff4ec19f8f
8011352: C1: TraceCodeBlobStacks crashes fastdebug Solaris SPARC.
Summary: Handle null correctly
Reviewed-by: roland, dlong, rbackman
Contributed-by: patric.hedlin@oracle.com

diff -r 3a45532a1854 -r e4a5b535c0d2 src/hotspot/cpu/sparc/frame_sparc.cpp
--- a/src/hotspot/cpu/sparc/frame_sparc.cpp	Wed Sep 20 20:53:22 2017 -0700
+++ b/src/hotspot/cpu/sparc/frame_sparc.cpp	Fri Sep 29 10:40:49 2017 +0200
@@ -119,8 +119,8 @@
     reg = regname->as_Register();
   }
   if (reg->is_out()) {
-    assert(_younger_window != NULL, "Younger window should be available");
-    return second_word + (address)&_younger_window[reg->after_save()->sp_offset_in_saved_window()];
+    return _younger_window == NULL ? NULL :
+      second_word + (address)&_younger_window[reg->after_save()->sp_offset_in_saved_window()];
   }
   if (reg->is_local() || reg->is_in()) {
     assert(_window != NULL, "Window should be available");