diff -ur a/src/hotspot/share/c1/c1_FrameMap.cpp b/src/hotspot/share/c1/c1_FrameMap.cpp
--- a/src/hotspot/share/c1/c1_FrameMap.cpp	   :: 
+++ b/src/hotspot/share/c1/c1_FrameMap.cpp	   :: 
@@ -82,7 +82,7 @@
     if (opr->is_address()) {
       LIR_Address* addr = opr->as_address_ptr();
       assert(addr->disp() == (int)addr->disp(), "out of range value");
-      out_preserve = MAX2(out_preserve, (intptr_t)addr->disp() / 4);
+      out_preserve = MAX2(out_preserve, (intptr_t)(addr->disp() - STACK_BIAS) / 4);
     }
     i += type2size[t];
   }
@@ -133,7 +133,7 @@
     args->append(opr);
     if (opr->is_address()) {
       LIR_Address* addr = opr->as_address_ptr();
-      out_preserve = MAX2(out_preserve, (intptr_t)addr->disp() / 4);
+      out_preserve = MAX2(out_preserve, (intptr_t)(addr->disp() - STACK_BIAS) / 4);
     }
     i += type2size[t];
   }
@@ -174,7 +174,7 @@
     LIR_Opr opr = _incoming_arguments->at(i);
     if (opr->is_address()) {
       LIR_Address* address = opr->as_address_ptr();
-      _argument_locations->at_put(java_index, address->disp());
+      _argument_locations->at_put(java_index, address->disp() - STACK_BIAS);
       _incoming_arguments->args()->at_put(i, LIR_OprFact::stack(java_index, as_BasicType(as_ValueType(address->type()))));
     }
     java_index += type2size[opr->type()];
diff -ur a/src/hotspot/share/jvmci/vmStructs_jvmci.cpp b/src/hotspot/share/jvmci/vmStructs_jvmci.cpp
--- a/src/hotspot/share/jvmci/vmStructs_jvmci.cpp	   :: 
+++ b/src/hotspot/share/jvmci/vmStructs_jvmci.cpp	   :: 
@@ -385,6 +385,7 @@
 #define VM_INT_CONSTANTS(declare_constant, declare_constant_with_value, declare_preprocessor_constant) \
   declare_preprocessor_constant("ASSERT", DEBUG_ONLY(1) NOT_DEBUG(0))     \
   declare_preprocessor_constant("FIELDINFO_TAG_SIZE", FIELDINFO_TAG_SIZE) \
+  declare_preprocessor_constant("STACK_BIAS", STACK_BIAS)                 \
                                                                           \
   declare_constant(CompLevel_none)                                        \
   declare_constant(CompLevel_simple)                                      \
diff -ur a/src/hotspot/share/opto/generateOptoStub.cpp b/src/hotspot/share/opto/generateOptoStub.cpp
--- a/src/hotspot/share/opto/generateOptoStub.cpp	   :: 
+++ b/src/hotspot/share/opto/generateOptoStub.cpp	   :: 
@@ -100,7 +100,7 @@
   // users will look at the other fields.
   //
   Node *adr_sp = basic_plus_adr(top(), thread, in_bytes(JavaThread::last_Java_sp_offset()));
-  Node *last_sp = frameptr();
+  Node *last_sp = basic_plus_adr(top(), frameptr(), (intptr_t) STACK_BIAS);
   store_to_memory(control(), adr_sp, last_sp, T_ADDRESS, NoAlias, MemNode::unordered);
 
   // Set _thread_in_native
diff -ur a/src/hotspot/share/runtime/vmStructs.cpp b/src/hotspot/share/runtime/vmStructs.cpp
--- a/src/hotspot/share/runtime/vmStructs.cpp	   :: 
+++ b/src/hotspot/share/runtime/vmStructs.cpp	   :: 
@@ -2058,6 +2058,12 @@
                                                                           \
   declare_preprocessor_constant("ASSERT", DEBUG_ONLY(1) NOT_DEBUG(0))     \
                                                                           \
+  /**************/                                                        \
+  /* Stack bias */                                                        \
+  /**************/                                                        \
+                                                                          \
+  declare_preprocessor_constant("STACK_BIAS", STACK_BIAS)                 \
+                                                                          \
   /****************/                                                      \
   /* Object sizes */                                                      \
   /****************/                                                      \
--- a/src/hotspot/share/utilities/globalDefinitions.hpp	Thu May 28 00:44:10 2020
+++ b/src/hotspot/share/utilities/globalDefinitions.hpp	Wed May 20 19:29:11 2020
@@ -871,6 +871,15 @@
 };
 
 
+#define STACK_BIAS      0
+// V9 Sparc CPU's running in 64 Bit mode use a stack bias of 7ff
+// in order to extend the reach of the stack pointer.
+#if defined(SPARC) && defined(_LP64)
+#undef STACK_BIAS
+#define STACK_BIAS      0x7ff
+#endif
+
+
 // TosState describes the top-of-stack state before and after the execution of
 // a bytecode or method. The top-of-stack value may be cached in one or more CPU
 // registers. The TosState corresponds to the 'machine representation' of this cached