# HG changeset patch
# User Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
# Date 1330127578 -3600
# Node ID e29339f342deabf9f329fc8a02160e37f694a27f
# Parent  6336b144e391985aed7b60eae785d89d8a20587d
Removed HandleException runtime call and associated C++ code (unused).

diff -r 6336b144e391 -r e29339f342de graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiRuntimeCall.java
--- a/graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiRuntimeCall.java	Sat Feb 25 00:49:04 2012 +0100
+++ b/graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiRuntimeCall.java	Sat Feb 25 00:52:58 2012 +0100
@@ -33,7 +33,6 @@
     UnwindException(Void, Object),
     Deoptimize(Void),
     RegisterFinalizer(Void, Object),
-    HandleException(Void, Object),
     SetDeoptInfo(Void, Object),
     CreateNullPointerException(Object),
     CreateOutOfBoundsException(Object, Int),
diff -r 6336b144e391 -r e29339f342de src/cpu/x86/vm/c1_Runtime1_x86.cpp
--- a/src/cpu/x86/vm/c1_Runtime1_x86.cpp	Sat Feb 25 00:49:04 2012 +0100
+++ b/src/cpu/x86/vm/c1_Runtime1_x86.cpp	Sat Feb 25 00:52:58 2012 +0100
@@ -773,74 +773,6 @@
   return oop_maps;
 }
 
-void Runtime1::graal_generate_handle_exception(StubAssembler *sasm, OopMapSet* oop_maps, OopMap* oop_map) {
-  NOT_LP64(fatal("64 bit only"));
-  // incoming parameters
-  const Register exception_oop = j_rarg0;
-  // other registers used in this stub
-  const Register exception_pc = j_rarg1;
-  const Register thread = r15_thread;
-
-  __ block_comment("graal_generate_handle_exception");
-
-  // verify that rax, contains a valid exception
-  __ verify_not_null_oop(exception_oop);
-
-#ifdef ASSERT
-  // check that fields in JavaThread for exception oop and issuing pc are
-  // empty before writing to them
-  Label oop_empty;
-  __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), (int32_t) NULL_WORD);
-  __ jcc(Assembler::equal, oop_empty);
-  __ stop("exception oop already set");
-  __ bind(oop_empty);
-
-  Label pc_empty;
-  __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), 0);
-  __ jcc(Assembler::equal, pc_empty);
-  __ stop("exception pc already set");
-  __ bind(pc_empty);
-#endif
-
-  // save exception oop and issuing pc into JavaThread
-  // (exception handler will load it from here)
-  __ movptr(Address(thread, JavaThread::exception_oop_offset()), exception_oop);
-  __ movptr(exception_pc, Address(rbp, 1*BytesPerWord));
-  __ movptr(Address(thread, JavaThread::exception_pc_offset()), exception_pc);
-
-  // compute the exception handler.
-  // the exception oop and the throwing pc are read from the fields in JavaThread
-  int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc));
-  oop_maps->add_gc_map(call_offset, oop_map);
-
-  // rax,: handler address
-  //      will be the deopt blob if nmethod was deoptimized while we looked up
-  //      handler regardless of whether handler existed in the nmethod.
-
-  // only rax, is valid at this time, all other registers have been destroyed by the runtime call
-  __ invalidate_registers(false, true, true, true, true, true);
-
-#ifdef ASSERT
-  // Do we have an exception handler in the nmethod?
-  Label done;
-  __ testptr(rax, rax);
-  __ jcc(Assembler::notZero, done);
-  __ stop("no handler found");
-  __ bind(done);
-#endif
-
-  // exception handler found
-  // patch the return address -> the stub will directly return to the exception handler
-  __ movptr(Address(rbp, 1*BytesPerWord), rax);
-
-  // restore registers
-  restore_live_registers(sasm, false);
-
-  // return to exception handler
-  __ leave();
-  __ ret(0);
-}
-
 
 void Runtime1::generate_unwind_exception(StubAssembler *sasm) {
   // incoming parameters
@@ -1986,14 +1918,6 @@
       break;
     }
 
-    case graal_handle_exception_id: {
-      StubFrame f(sasm, "graal_handle_exception", dont_gc_arguments);
-      oop_maps = new OopMapSet();
-      OopMap* oop_map = save_live_registers(sasm, 1, false);
-      graal_generate_handle_exception(sasm, oop_maps, oop_map);
-      break;
-    }
-
     case graal_slow_subtype_check_id: {
       Label success;
       Label miss;
diff -r 6336b144e391 -r e29339f342de src/share/vm/c1/c1_Runtime1.hpp
--- a/src/share/vm/c1/c1_Runtime1.hpp	Sat Feb 25 00:49:04 2012 +0100
+++ b/src/share/vm/c1/c1_Runtime1.hpp	Sat Feb 25 00:52:58 2012 +0100
@@ -137,7 +137,6 @@
   static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument);
   static OopMapSet* generate_handle_exception(StubID id, StubAssembler* sasm);
   static void       generate_unwind_exception(StubAssembler *sasm);
-  static void       graal_generate_handle_exception(StubAssembler *sasm, OopMapSet* oop_maps, OopMap* oop_map);
   static OopMapSet* generate_patching(StubAssembler* sasm, address target);
 
   static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry,
diff -r 6336b144e391 -r e29339f342de src/share/vm/graal/graalCodeInstaller.cpp
--- a/src/share/vm/graal/graalCodeInstaller.cpp	Sat Feb 25 00:49:04 2012 +0100
+++ b/src/share/vm/graal/graalCodeInstaller.cpp	Sat Feb 25 00:52:58 2012 +0100
@@ -537,9 +537,6 @@
   } else if (runtime_call == CiRuntimeCall::UnwindException()) {
     target_addr = Runtime1::entry_for(Runtime1::graal_unwind_exception_call_id);
     TRACE_graal_3("CiRuntimeCall::UnwindException()");
-  } else if (runtime_call == CiRuntimeCall::HandleException()) {
-    target_addr = Runtime1::entry_for(Runtime1::graal_handle_exception_id);
-    TRACE_graal_3("CiRuntimeCall::HandleException()");
   } else if (runtime_call == CiRuntimeCall::SetDeoptInfo()) {
     target_addr = Runtime1::entry_for(Runtime1::graal_set_deopt_info_id);
     TRACE_graal_3("CiRuntimeCall::SetDeoptInfo()");