diff -r 0c5b3cf3c1f5 -r 2338d41fbd81 src/cpu/x86/vm/templateTable_x86_64.cpp
--- a/src/cpu/x86/vm/templateTable_x86_64.cpp	Fri Apr 30 04:27:25 2010 -0700
+++ b/src/cpu/x86/vm/templateTable_x86_64.cpp	Fri Apr 30 08:37:24 2010 -0700
@@ -58,7 +58,7 @@
 }
 
 static inline Address iaddress(Register r) {
-  return Address(r14, r, Address::times_8, Interpreter::value_offset_in_bytes());
+  return Address(r14, r, Address::times_8);
 }
 
 static inline Address laddress(Register r) {
@@ -418,7 +418,6 @@
 void TemplateTable::locals_index(Register reg, int offset) {
   __ load_unsigned_byte(reg, at_bcp(offset));
   __ negptr(reg);
-  if (TaggedStackInterpreter) __ shlptr(reg, 1);  // index = index*2
 }
 
 void TemplateTable::iload() {
@@ -460,53 +459,45 @@
   // Get the local value into tos
   locals_index(rbx);
   __ movl(rax, iaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
 }
 
 void TemplateTable::fast_iload2() {
   transition(vtos, itos);
   locals_index(rbx);
   __ movl(rax, iaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
   __ push(itos);
   locals_index(rbx, 3);
   __ movl(rax, iaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
 }
 
 void TemplateTable::fast_iload() {
   transition(vtos, itos);
   locals_index(rbx);
   __ movl(rax, iaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
 }
 
 void TemplateTable::lload() {
   transition(vtos, ltos);
   locals_index(rbx);
   __ movq(rax, laddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
 }
 
 void TemplateTable::fload() {
   transition(vtos, ftos);
   locals_index(rbx);
   __ movflt(xmm0, faddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
 }
 
 void TemplateTable::dload() {
   transition(vtos, dtos);
   locals_index(rbx);
   __ movdbl(xmm0, daddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
 }
 
 void TemplateTable::aload() {
   transition(vtos, atos);
   locals_index(rbx);
   __ movptr(rax, aaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagReference, rbx));
 }
 
 void TemplateTable::locals_index_wide(Register reg) {
@@ -514,42 +505,36 @@
   __ bswapl(reg);
   __ shrl(reg, 16);
   __ negptr(reg);
-  if (TaggedStackInterpreter) __ shlptr(reg, 1);  // index = index*2
 }
 
 void TemplateTable::wide_iload() {
   transition(vtos, itos);
   locals_index_wide(rbx);
   __ movl(rax, iaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
 }
 
 void TemplateTable::wide_lload() {
   transition(vtos, ltos);
   locals_index_wide(rbx);
   __ movq(rax, laddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
 }
 
 void TemplateTable::wide_fload() {
   transition(vtos, ftos);
   locals_index_wide(rbx);
   __ movflt(xmm0, faddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
 }
 
 void TemplateTable::wide_dload() {
   transition(vtos, dtos);
   locals_index_wide(rbx);
   __ movdbl(xmm0, daddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagCategory2, rbx));
 }
 
 void TemplateTable::wide_aload() {
   transition(vtos, atos);
   locals_index_wide(rbx);
   __ movptr(rax, aaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagReference, rbx));
 }
 
 void TemplateTable::index_check(Register array, Register index) {
@@ -654,7 +639,6 @@
   // load index out of locals
   locals_index(rbx);
   __ movl(rax, iaddress(rbx));
-  debug_only(__ verify_local_tag(frame::TagValue, rbx));
 
   // eax: index
   // rdx: array
@@ -681,31 +665,26 @@
 void TemplateTable::iload(int n) {
   transition(vtos, itos);
   __ movl(rax, iaddress(n));
-  debug_only(__ verify_local_tag(frame::TagValue, n));
 }
 
 void TemplateTable::lload(int n) {
   transition(vtos, ltos);
   __ movq(rax, laddress(n));
-  debug_only(__ verify_local_tag(frame::TagCategory2, n));
 }
 
 void TemplateTable::fload(int n) {
   transition(vtos, ftos);
   __ movflt(xmm0, faddress(n));
-  debug_only(__ verify_local_tag(frame::TagValue, n));
 }
 
 void TemplateTable::dload(int n) {
   transition(vtos, dtos);
   __ movdbl(xmm0, daddress(n));
-  debug_only(__ verify_local_tag(frame::TagCategory2, n));
 }
 
 void TemplateTable::aload(int n) {
   transition(vtos, atos);
   __ movptr(rax, aaddress(n));
-  debug_only(__ verify_local_tag(frame::TagReference, n));
 }
 
 void TemplateTable::aload_0() {
@@ -791,36 +770,31 @@
   transition(itos, vtos);
   locals_index(rbx);
   __ movl(iaddress(rbx), rax);
-  __ tag_local(frame::TagValue, rbx);
 }
 
 void TemplateTable::lstore() {
   transition(ltos, vtos);
   locals_index(rbx);
   __ movq(laddress(rbx), rax);
-  __ tag_local(frame::TagCategory2, rbx);
 }
 
 void TemplateTable::fstore() {
   transition(ftos, vtos);
   locals_index(rbx);
   __ movflt(faddress(rbx), xmm0);
-  __ tag_local(frame::TagValue, rbx);
 }
 
 void TemplateTable::dstore() {
   transition(dtos, vtos);
   locals_index(rbx);
   __ movdbl(daddress(rbx), xmm0);
-  __ tag_local(frame::TagCategory2, rbx);
 }
 
 void TemplateTable::astore() {
   transition(vtos, vtos);
-  __ pop_ptr(rax, rdx);    // will need to pop tag too
+  __ pop_ptr(rax);
   locals_index(rbx);
   __ movptr(aaddress(rbx), rax);
-  __ tag_local(rdx, rbx);  // store tag from stack, might be returnAddr
 }
 
 void TemplateTable::wide_istore() {
@@ -828,7 +802,6 @@
   __ pop_i();
   locals_index_wide(rbx);
   __ movl(iaddress(rbx), rax);
-  __ tag_local(frame::TagValue, rbx);
 }
 
 void TemplateTable::wide_lstore() {
@@ -836,7 +809,6 @@
   __ pop_l();
   locals_index_wide(rbx);
   __ movq(laddress(rbx), rax);
-  __ tag_local(frame::TagCategory2, rbx);
 }
 
 void TemplateTable::wide_fstore() {
@@ -844,7 +816,6 @@
   __ pop_f();
   locals_index_wide(rbx);
   __ movflt(faddress(rbx), xmm0);
-  __ tag_local(frame::TagValue, rbx);
 }
 
 void TemplateTable::wide_dstore() {
@@ -852,15 +823,13 @@
   __ pop_d();
   locals_index_wide(rbx);
   __ movdbl(daddress(rbx), xmm0);
-  __ tag_local(frame::TagCategory2, rbx);
 }
 
 void TemplateTable::wide_astore() {
   transition(vtos, vtos);
-  __ pop_ptr(rax, rdx);    // will need to pop tag too
+  __ pop_ptr(rax);
   locals_index_wide(rbx);
   __ movptr(aaddress(rbx), rax);
-  __ tag_local(rdx, rbx);  // store tag from stack, might be returnAddr
 }
 
 void TemplateTable::iastore() {
@@ -972,7 +941,7 @@
 
   // Pop stack arguments
   __ bind(done);
-  __ addptr(rsp, 3 * Interpreter::stackElementSize());
+  __ addptr(rsp, 3 * Interpreter::stackElementSize);
 }
 
 void TemplateTable::bastore() {
@@ -1010,130 +979,125 @@
 void TemplateTable::istore(int n) {
   transition(itos, vtos);
   __ movl(iaddress(n), rax);
-  __ tag_local(frame::TagValue, n);
 }
 
 void TemplateTable::lstore(int n) {
   transition(ltos, vtos);
   __ movq(laddress(n), rax);
-  __ tag_local(frame::TagCategory2, n);
 }
 
 void TemplateTable::fstore(int n) {
   transition(ftos, vtos);
   __ movflt(faddress(n), xmm0);
-  __ tag_local(frame::TagValue, n);
 }
 
 void TemplateTable::dstore(int n) {
   transition(dtos, vtos);
   __ movdbl(daddress(n), xmm0);
-  __ tag_local(frame::TagCategory2, n);
 }
 
 void TemplateTable::astore(int n) {
   transition(vtos, vtos);
-  __ pop_ptr(rax, rdx);
+  __ pop_ptr(rax);
   __ movptr(aaddress(n), rax);
-  __ tag_local(rdx, n);
 }
 
 void TemplateTable::pop() {
   transition(vtos, vtos);
-  __ addptr(rsp, Interpreter::stackElementSize());
+  __ addptr(rsp, Interpreter::stackElementSize);
 }
 
 void TemplateTable::pop2() {
   transition(vtos, vtos);
-  __ addptr(rsp, 2 * Interpreter::stackElementSize());
+  __ addptr(rsp, 2 * Interpreter::stackElementSize);
 }
 
 void TemplateTable::dup() {
   transition(vtos, vtos);
-  __ load_ptr_and_tag(0, rax, rdx);
-  __ push_ptr(rax, rdx);
+  __ load_ptr(0, rax);
+  __ push_ptr(rax);
   // stack: ..., a, a
 }
 
 void TemplateTable::dup_x1() {
   transition(vtos, vtos);
   // stack: ..., a, b
-  __ load_ptr_and_tag(0, rax, rdx);  // load b
-  __ load_ptr_and_tag(1, rcx, rbx);  // load a
-  __ store_ptr_and_tag(1, rax, rdx); // store b
-  __ store_ptr_and_tag(0, rcx, rbx); // store a
-  __ push_ptr(rax, rdx);             // push b
+  __ load_ptr( 0, rax);  // load b
+  __ load_ptr( 1, rcx);  // load a
+  __ store_ptr(1, rax);  // store b
+  __ store_ptr(0, rcx);  // store a
+  __ push_ptr(rax);      // push b
   // stack: ..., b, a, b
 }
 
 void TemplateTable::dup_x2() {
   transition(vtos, vtos);
   // stack: ..., a, b, c
-  __ load_ptr_and_tag(0, rax, rdx);  // load c
-  __ load_ptr_and_tag(2, rcx, rbx);  // load a
-  __ store_ptr_and_tag(2, rax, rdx); // store c in a
-  __ push_ptr(rax, rdx);             // push c
+  __ load_ptr( 0, rax);  // load c
+  __ load_ptr( 2, rcx);  // load a
+  __ store_ptr(2, rax);  // store c in a
+  __ push_ptr(rax);      // push c
   // stack: ..., c, b, c, c
-  __ load_ptr_and_tag(2, rax, rdx);  // load b
-  __ store_ptr_and_tag(2, rcx, rbx); // store a in b
+  __ load_ptr( 2, rax);  // load b
+  __ store_ptr(2, rcx);  // store a in b
   // stack: ..., c, a, c, c
-  __ store_ptr_and_tag(1, rax, rdx); // store b in c
+  __ store_ptr(1, rax);  // store b in c
   // stack: ..., c, a, b, c
 }
 
 void TemplateTable::dup2() {
   transition(vtos, vtos);
   // stack: ..., a, b
-  __ load_ptr_and_tag(1, rax, rdx);  // load a
-  __ push_ptr(rax, rdx);             // push a
-  __ load_ptr_and_tag(1, rax, rdx);  // load b
-  __ push_ptr(rax, rdx);             // push b
+  __ load_ptr(1, rax);  // load a
+  __ push_ptr(rax);     // push a
+  __ load_ptr(1, rax);  // load b
+  __ push_ptr(rax);     // push b
   // stack: ..., a, b, a, b
 }
 
 void TemplateTable::dup2_x1() {
   transition(vtos, vtos);
   // stack: ..., a, b, c
-  __ load_ptr_and_tag(0, rcx, rbx);  // load c
-  __ load_ptr_and_tag(1, rax, rdx);  // load b
-  __ push_ptr(rax, rdx);             // push b
-  __ push_ptr(rcx, rbx);             // push c
+  __ load_ptr( 0, rcx);  // load c
+  __ load_ptr( 1, rax);  // load b
+  __ push_ptr(rax);      // push b
+  __ push_ptr(rcx);      // push c
   // stack: ..., a, b, c, b, c
-  __ store_ptr_and_tag(3, rcx, rbx); // store c in b
+  __ store_ptr(3, rcx);  // store c in b
   // stack: ..., a, c, c, b, c
-  __ load_ptr_and_tag(4, rcx, rbx);  // load a
-  __ store_ptr_and_tag(2, rcx, rbx); // store a in 2nd c
+  __ load_ptr( 4, rcx);  // load a
+  __ store_ptr(2, rcx);  // store a in 2nd c
   // stack: ..., a, c, a, b, c
-  __ store_ptr_and_tag(4, rax, rdx); // store b in a
+  __ store_ptr(4, rax);  // store b in a
   // stack: ..., b, c, a, b, c
 }
 
 void TemplateTable::dup2_x2() {
   transition(vtos, vtos);
   // stack: ..., a, b, c, d
-  __ load_ptr_and_tag(0, rcx, rbx);  // load d
-  __ load_ptr_and_tag(1, rax, rdx);  // load c
-  __ push_ptr(rax, rdx);             // push c
-  __ push_ptr(rcx, rbx);             // push d
+  __ load_ptr( 0, rcx);  // load d
+  __ load_ptr( 1, rax);  // load c
+  __ push_ptr(rax);      // push c
+  __ push_ptr(rcx);      // push d
   // stack: ..., a, b, c, d, c, d
-  __ load_ptr_and_tag(4, rax, rdx);  // load b
-  __ store_ptr_and_tag(2, rax, rdx); // store b in d
-  __ store_ptr_and_tag(4, rcx, rbx); // store d in b
+  __ load_ptr( 4, rax);  // load b
+  __ store_ptr(2, rax);  // store b in d
+  __ store_ptr(4, rcx);  // store d in b
   // stack: ..., a, d, c, b, c, d
-  __ load_ptr_and_tag(5, rcx, rbx);  // load a
-  __ load_ptr_and_tag(3, rax, rdx);  // load c
-  __ store_ptr_and_tag(3, rcx, rbx); // store a in c
-  __ store_ptr_and_tag(5, rax, rdx); // store c in a
+  __ load_ptr( 5, rcx);  // load a
+  __ load_ptr( 3, rax);  // load c
+  __ store_ptr(3, rcx);  // store a in c
+  __ store_ptr(5, rax);  // store c in a
   // stack: ..., c, d, a, b, c, d
 }
 
 void TemplateTable::swap() {
   transition(vtos, vtos);
   // stack: ..., a, b
-  __ load_ptr_and_tag(1, rcx, rbx);  // load a
-  __ load_ptr_and_tag(0, rax, rdx);  // load b
-  __ store_ptr_and_tag(0, rcx, rbx); // store a in b
-  __ store_ptr_and_tag(1, rax, rdx); // store b in a
+  __ load_ptr( 1, rcx);  // load a
+  __ load_ptr( 0, rax);  // load b
+  __ store_ptr(0, rcx);  // store a in b
+  __ store_ptr(1, rax);  // store b in a
   // stack: ..., b, a
 }
 
@@ -1156,12 +1120,12 @@
 void TemplateTable::lop2(Operation op) {
   transition(ltos, ltos);
   switch (op) {
-  case add  :                    __ pop_l(rdx); __ addptr (rax, rdx); break;
-  case sub  : __ mov(rdx, rax);  __ pop_l(rax); __ subptr (rax, rdx); break;
-  case _and :                    __ pop_l(rdx); __ andptr (rax, rdx); break;
-  case _or  :                    __ pop_l(rdx); __ orptr  (rax, rdx); break;
-  case _xor :                    __ pop_l(rdx); __ xorptr (rax, rdx); break;
-  default : ShouldNotReachHere();
+  case add  :                    __ pop_l(rdx); __ addptr(rax, rdx); break;
+  case sub  : __ mov(rdx, rax);  __ pop_l(rax); __ subptr(rax, rdx); break;
+  case _and :                    __ pop_l(rdx); __ andptr(rax, rdx); break;
+  case _or  :                    __ pop_l(rdx); __ orptr (rax, rdx); break;
+  case _xor :                    __ pop_l(rdx); __ xorptr(rax, rdx); break;
+  default   : ShouldNotReachHere();
   }
 }
 
@@ -1250,7 +1214,7 @@
   switch (op) {
   case add:
     __ addss(xmm0, at_rsp());
-    __ addptr(rsp, Interpreter::stackElementSize());
+    __ addptr(rsp, Interpreter::stackElementSize);
     break;
   case sub:
     __ movflt(xmm1, xmm0);
@@ -1259,7 +1223,7 @@
     break;
   case mul:
     __ mulss(xmm0, at_rsp());
-    __ addptr(rsp, Interpreter::stackElementSize());
+    __ addptr(rsp, Interpreter::stackElementSize);
     break;
   case div:
     __ movflt(xmm1, xmm0);
@@ -1282,7 +1246,7 @@
   switch (op) {
   case add:
     __ addsd(xmm0, at_rsp());
-    __ addptr(rsp, 2 * Interpreter::stackElementSize());
+    __ addptr(rsp, 2 * Interpreter::stackElementSize);
     break;
   case sub:
     __ movdbl(xmm1, xmm0);
@@ -1291,7 +1255,7 @@
     break;
   case mul:
     __ mulsd(xmm0, at_rsp());
-    __ addptr(rsp, 2 * Interpreter::stackElementSize());
+    __ addptr(rsp, 2 * Interpreter::stackElementSize);
     break;
   case div:
     __ movdbl(xmm1, xmm0);
@@ -2782,7 +2746,6 @@
 
   // get receiver
   __ movptr(rax, aaddress(0));
-  debug_only(__ verify_local_tag(frame::TagReference, 0));
   // access constant pool cache
   __ get_cache_and_index_at_bcp(rcx, rdx, 2);
   __ movptr(rbx,
@@ -2858,7 +2821,6 @@
   if (load_receiver) {
     __ movl(recv, flags);
     __ andl(recv, 0xFF);
-    if (TaggedStackInterpreter) __ shll(recv, 1);  // index*2
     Address recv_addr(rsp, recv, Address::times_8, -Interpreter::expr_offset_in_bytes(1));
     __ movptr(recv, recv_addr);
     __ verify_oop(recv);
@@ -3610,13 +3572,11 @@
   __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions
   // last dim is on top of stack; we want address of first one:
   // first_addr = last_addr + (ndims - 1) * wordSize
-  if (TaggedStackInterpreter) __ shll(rax, 1);  // index*2
   __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize));
   call_VM(rax,
           CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray),
           c_rarg1);
   __ load_unsigned_byte(rbx, at_bcp(3));
-  if (TaggedStackInterpreter) __ shll(rbx, 1);  // index*2
   __ lea(rsp, Address(rsp, rbx, Address::times_8));
 }
 #endif // !CC_INTERP