# HG changeset patch
# User twisti
# Date 1274780328 25200
# Node ID 110501f54a99ee2c365d0af0e4ddfd604e13d000
# Parent  9f669cf29cb03dbb17a7782ad373bdce4a92994e
6934104: JSR 292 needs to support SPARC C2
Summary: C2 for SPARC needs to support JSR 292.
Reviewed-by: kvn, never

diff -r 9f669cf29cb0 -r 110501f54a99 src/cpu/sparc/vm/runtime_sparc.cpp
--- a/src/cpu/sparc/vm/runtime_sparc.cpp	Mon May 24 14:15:14 2010 -0700
+++ b/src/cpu/sparc/vm/runtime_sparc.cpp	Tue May 25 02:38:48 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 1998-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 1998-2010 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -116,6 +116,11 @@
   __ mov(O0, G3_scratch);             // Move handler address to temp
   __ restore();
 
+  // Restore SP from L7 if the exception PC is a MethodHandle call site.
+  __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), O7);
+  __ tst(O7);
+  __ movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP);
+
   // G3_scratch contains handler address
   // Since this may be the deopt blob we must set O7 to look like we returned
   // from the original pc that threw the exception
diff -r 9f669cf29cb0 -r 110501f54a99 src/cpu/sparc/vm/sparc.ad
--- a/src/cpu/sparc/vm/sparc.ad	Mon May 24 14:15:14 2010 -0700
+++ b/src/cpu/sparc/vm/sparc.ad	Tue May 25 02:38:48 2010 -0700
@@ -534,7 +534,10 @@
 //       The "return address" is the address of the call instruction, plus 8.
 
 int MachCallStaticJavaNode::ret_addr_offset() {
-  return NativeCall::instruction_size;  // call; delay slot
+  int offset = NativeCall::instruction_size;  // call; delay slot
+  if (_method_handle_invoke)
+    offset += 4;  // restore SP
+  return offset;
 }
 
 int MachCallDynamicJavaNode::ret_addr_offset() {
@@ -1858,7 +1861,7 @@
 }
 
 const RegMask Matcher::method_handle_invoke_SP_save_mask() {
-  return RegMask();
+  return L7_REGP_mask;
 }
 
 %}
@@ -2441,6 +2444,16 @@
                     /*preserve_g2=*/true, /*force far call*/true);
   %}
 
+  enc_class preserve_SP %{
+    MacroAssembler _masm(&cbuf);
+    __ mov(SP, L7_mh_SP_save);
+  %}
+
+  enc_class restore_SP %{
+    MacroAssembler _masm(&cbuf);
+    __ mov(L7_mh_SP_save, SP);
+  %}
+
   enc_class Java_Static_Call (method meth) %{    // JAVA STATIC CALL
     // CALL to fixup routine.  Fixup routine uses ScopeDesc info to determine
     // who we intended to call.
@@ -9213,6 +9226,7 @@
 // Call Java Static Instruction
 instruct CallStaticJavaDirect( method meth ) %{
   match(CallStaticJava);
+  predicate(! ((CallStaticJavaNode*)n)->is_method_handle_invoke());
   effect(USE meth);
 
   size(8);
@@ -9223,6 +9237,20 @@
   ins_pipe(simple_call);
 %}
 
+// Call Java Static Instruction (method handle version)
+instruct CallStaticJavaHandle(method meth, l7RegP l7_mh_SP_save) %{
+  match(CallStaticJava);
+  predicate(((CallStaticJavaNode*)n)->is_method_handle_invoke());
+  effect(USE meth, KILL l7_mh_SP_save);
+
+  size(8);
+  ins_cost(CALL_COST);
+  format %{ "CALL,static/MethodHandle" %}
+  ins_encode(preserve_SP, Java_Static_Call(meth), restore_SP, call_epilog);
+  ins_pc_relative(1);
+  ins_pipe(simple_call);
+%}
+
 // Call Java Dynamic Instruction
 instruct CallDynamicJavaDirect( method meth ) %{
   match(CallDynamicJava);
diff -r 9f669cf29cb0 -r 110501f54a99 src/cpu/x86/vm/runtime_x86_32.cpp
--- a/src/cpu/x86/vm/runtime_x86_32.cpp	Mon May 24 14:15:14 2010 -0700
+++ b/src/cpu/x86/vm/runtime_x86_32.cpp	Tue May 25 02:38:48 2010 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 1998-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 1998-2010 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -117,7 +117,7 @@
 
   // Restore SP from BP if the exception PC is a MethodHandle call site.
   __ cmpl(Address(rcx, JavaThread::is_method_handle_return_offset()), 0);
-  __ cmovptr(Assembler::notEqual, rsp, rbp);
+  __ cmovptr(Assembler::notEqual, rsp, rbp_mh_SP_save);
 
   // We have a handler in rax, (could be deopt blob)
   // rdx - throwing pc, deopt blob will need it.
diff -r 9f669cf29cb0 -r 110501f54a99 src/cpu/x86/vm/sharedRuntime_x86_64.cpp
--- a/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Mon May 24 14:15:14 2010 -0700
+++ b/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Tue May 25 02:38:48 2010 -0700
@@ -3305,7 +3305,7 @@
 
   // Restore SP from BP if the exception PC is a MethodHandle call site.
   __ cmpl(Address(r15_thread, JavaThread::is_method_handle_return_offset()), 0);
-  __ cmovptr(Assembler::notEqual, rsp, rbp);
+  __ cmovptr(Assembler::notEqual, rsp, rbp_mh_SP_save);
 
   // We have a handler in rax (could be deopt blob).
   __ mov(r8, rax);
diff -r 9f669cf29cb0 -r 110501f54a99 src/cpu/x86/vm/x86_32.ad
--- a/src/cpu/x86/vm/x86_32.ad	Mon May 24 14:15:14 2010 -0700
+++ b/src/cpu/x86/vm/x86_32.ad	Tue May 25 02:38:48 2010 -0700
@@ -1841,14 +1841,14 @@
     MacroAssembler _masm(&cbuf);
     // RBP is preserved across all calls, even compiled calls.
     // Use it to preserve RSP in places where the callee might change the SP.
-    __ movptr(rbp, rsp);
+    __ movptr(rbp_mh_SP_save, rsp);
     debug_only(int off1 = cbuf.code_size());
     assert(off1 - off0 == preserve_SP_size(), "correct size prediction");
   %}
 
   enc_class restore_SP %{
     MacroAssembler _masm(&cbuf);
-    __ movptr(rsp, rbp);
+    __ movptr(rsp, rbp_mh_SP_save);
   %}
 
   enc_class Java_Static_Call (method meth) %{    // JAVA STATIC CALL
@@ -13570,7 +13570,7 @@
 // Call Java Static Instruction (method handle version)
 // Note: If this code changes, the corresponding ret_addr_offset() and
 //       compute_padding() functions will have to be adjusted.
-instruct CallStaticJavaHandle(method meth, eBPRegP ebp) %{
+instruct CallStaticJavaHandle(method meth, eBPRegP ebp_mh_SP_save) %{
   match(CallStaticJava);
   predicate(((CallStaticJavaNode*)n)->is_method_handle_invoke());
   effect(USE meth);
diff -r 9f669cf29cb0 -r 110501f54a99 src/cpu/x86/vm/x86_64.ad
--- a/src/cpu/x86/vm/x86_64.ad	Mon May 24 14:15:14 2010 -0700
+++ b/src/cpu/x86/vm/x86_64.ad	Tue May 25 02:38:48 2010 -0700
@@ -2635,14 +2635,14 @@
     MacroAssembler _masm(&cbuf);
     // RBP is preserved across all calls, even compiled calls.
     // Use it to preserve RSP in places where the callee might change the SP.
-    __ movptr(rbp, rsp);
+    __ movptr(rbp_mh_SP_save, rsp);
     debug_only(int off1 = cbuf.code_size());
     assert(off1 - off0 == preserve_SP_size(), "correct size prediction");
   %}
 
   enc_class restore_SP %{
     MacroAssembler _masm(&cbuf);
-    __ movptr(rsp, rbp);
+    __ movptr(rsp, rbp_mh_SP_save);
   %}
 
   enc_class Java_Static_Call(method meth)
@@ -12604,7 +12604,7 @@
 // Call Java Static Instruction (method handle version)
 // Note: If this code changes, the corresponding ret_addr_offset() and
 //       compute_padding() functions will have to be adjusted.
-instruct CallStaticJavaHandle(method meth, rbp_RegP rbp) %{
+instruct CallStaticJavaHandle(method meth, rbp_RegP rbp_mh_SP_save) %{
   match(CallStaticJava);
   predicate(((CallStaticJavaNode*) n)->is_method_handle_invoke());
   effect(USE meth);