src/hotspot/share/code/compiledMethod.cpp

@@ -23,10 +23,11 @@
  */
 
 #include "precompiled.hpp"
 #include "code/compiledIC.hpp"
 #include "code/compiledMethod.inline.hpp"
+#include "code/exceptionHandlerTable.hpp"
 #include "code/scopeDesc.hpp"
 #include "code/codeCache.hpp"
 #include "code/icBuffer.hpp"
 #include "gc/shared/barrierSet.hpp"
 #include "gc/shared/gcBehaviours.hpp"

@@ -35,12 +36,14 @@
 #include "logging/logTag.hpp"
 #include "memory/resourceArea.hpp"
 #include "oops/methodData.hpp"
 #include "oops/method.inline.hpp"
 #include "prims/methodHandles.hpp"
+#include "runtime/deoptimization.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/mutexLocker.hpp"
+#include "runtime/sharedRuntime.hpp"
 
 CompiledMethod::CompiledMethod(Method* method, const char* name, CompilerType type, const CodeBlobLayout& layout,
                                int frame_complete_offset, int frame_size, ImmutableOopMapSet* oop_maps,
                                bool caller_must_gc_arguments)
   : CodeBlob(name, type, layout, frame_complete_offset, frame_size, oop_maps, caller_must_gc_arguments),

@@ -636,10 +639,50 @@
          os::is_readable_pointer(method) &&
          os::is_readable_pointer(method->constants()) &&
          os::is_readable_pointer(method->signature());
 }
 
+address CompiledMethod::continuation_for_implicit_exception(address pc, bool for_div0_check) {
+  // Exception happened outside inline-cache check code => we are inside
+  // an active nmethod => use cpc to determine a return address
+  int exception_offset = pc - code_begin();
+  int cont_offset = ImplicitExceptionTable(this).continuation_offset( exception_offset );
+#ifdef ASSERT
+  if (cont_offset == 0) {
+    Thread* thread = Thread::current();
+    ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY
+    HandleMark hm(thread);
+    ResourceMark rm(thread);
+    CodeBlob* cb = CodeCache::find_blob(pc);
+    assert(cb != NULL && cb == this, "");
+    ttyLocker ttyl;
+    tty->print_cr("implicit exception happened at " INTPTR_FORMAT, p2i(pc));
+    print();
+    method()->print_codes();
+    print_code();
+    print_pcs();
+  }
+#endif
+  if (cont_offset == 0) {
+    // Let the normal error handling report the exception
+    return NULL;
+  }
+  if (cont_offset == exception_offset) {
+#if INCLUDE_JVMCI
+    Deoptimization::DeoptReason deopt_reason = for_div0_check ? Deoptimization::Reason_div0_check : Deoptimization::Reason_null_check;
+    JavaThread *thread = JavaThread::current();
+    thread->set_jvmci_implicit_exception_pc(pc);
+    thread->set_pending_deoptimization(Deoptimization::make_trap_request(deopt_reason,
+                                                                         Deoptimization::Action_reinterpret));
+    return (SharedRuntime::deopt_blob()->implicit_exception_uncommon_trap());
+#else
+    ShouldNotReachHere();
+#endif
+  }
+  return code_begin() + cont_offset;
+}
+
 class HasEvolDependency : public MetadataClosure {
   bool _has_evol_dependency;
  public:
   HasEvolDependency() : _has_evol_dependency(false) {}
   void do_metadata(Metadata* md) {