changeset 12796:3217bd7d2eb7

Merge
author mikael
date Tue, 06 Jun 2017 10:20:57 -0700
parents 9d6a69c33408 1ae9e84f68b3
children 4478ddab28b7
files
diffstat 3 files changed, 12 insertions(+), 14 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/code/relocInfo.cpp	Fri Jun 02 11:20:50 2017 +0530
+++ b/src/share/vm/code/relocInfo.cpp	Tue Jun 06 10:20:57 2017 -0700
@@ -129,9 +129,9 @@
   if (nm == NULL && begin != NULL) {
     // allow nmethod to be deduced from beginning address
     CodeBlob* cb = CodeCache::find_blob(begin);
-    nm = cb->as_compiled_method_or_null();
+    nm = (cb != NULL) ? cb->as_compiled_method_or_null() : NULL;
   }
-  assert(nm != NULL, "must be able to deduce nmethod from other arguments");
+  guarantee(nm != NULL, "must be able to deduce nmethod from other arguments");
 
   _code    = nm;
   _current = nm->relocation_begin() - 1;
--- a/src/share/vm/compiler/oopMap.cpp	Fri Jun 02 11:20:50 2017 +0530
+++ b/src/share/vm/compiler/oopMap.cpp	Tue Jun 06 10:20:57 2017 -0700
@@ -350,16 +350,14 @@
         omv = oms.current();
         oop* loc = fr->oopmapreg_to_location(omv.reg(),reg_map);
         guarantee(loc != NULL, "missing saved register");
+        oop *derived_loc = loc;
         oop *base_loc    = fr->oopmapreg_to_location(omv.content_reg(), reg_map);
-        oop *derived_loc = loc;
-        oop val = *base_loc;
-        if (val == (oop)NULL || Universe::is_narrow_oop_base(val)) {
-          // Ignore NULL oops and decoded NULL narrow oops which
-          // equal to Universe::narrow_oop_base when a narrow oop
-          // implicit null check is used in compiled code.
-          // The narrow_oop_base could be NULL or be the address
-          // of the page below heap depending on compressed oops mode.
-        } else {
+        // Ignore NULL oops and decoded NULL narrow oops which
+        // equal to Universe::narrow_oop_base when a narrow oop
+        // implicit null check is used in compiled code.
+        // The narrow_oop_base could be NULL or be the address
+        // of the page below heap depending on compressed oops mode.
+        if (base_loc != NULL && *base_loc != (oop)NULL && !Universe::is_narrow_oop_base(*base_loc)) {
           derived_oop_fn(base_loc, derived_loc);
         }
         oms.next();
--- a/src/share/vm/runtime/sharedRuntime.cpp	Fri Jun 02 11:20:50 2017 +0530
+++ b/src/share/vm/runtime/sharedRuntime.cpp	Tue Jun 06 10:20:57 2017 -0700
@@ -549,7 +549,7 @@
   CodeBlob *cb = CodeCache::find_blob(pc);
 
   // Should be an nmethod
-  assert(cb && cb->is_compiled(), "safepoint polling: pc must refer to an nmethod");
+  guarantee(cb != NULL && cb->is_compiled(), "safepoint polling: pc must refer to an nmethod");
 
   // Look up the relocation information
   assert(((CompiledMethod*)cb)->is_at_poll_or_poll_return(pc),
@@ -1802,7 +1802,7 @@
   if (destination != entry_point) {
     CodeBlob* callee = CodeCache::find_blob(destination);
     // callee == cb seems weird. It means calling interpreter thru stub.
-    if (callee == cb || callee->is_adapter_blob()) {
+    if (callee != NULL && (callee == cb || callee->is_adapter_blob())) {
       // static call or optimized virtual
       if (TraceCallFixup) {
         tty->print("fixup callsite           at " INTPTR_FORMAT " to compiled code for", p2i(caller_pc));
@@ -1851,7 +1851,7 @@
   // ask me how I know this...
 
   CodeBlob* cb = CodeCache::find_blob(caller_pc);
-  if (!cb->is_compiled() || entry_point == moop->get_c2i_entry()) {
+  if (cb == NULL || !cb->is_compiled() || entry_point == moop->get_c2i_entry()) {
     return;
   }