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diff src/cpu/x86/vm/sharedRuntime_x86_64.cpp @ 9025:ff5a32117e02

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Implement fast invocation of installed code (direct tail call to the target machine code address).
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Fri, 12 Apr 2013 01:53:52 +0200
parents b9a918201d47
children c6a1ffc707ff
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line diff
--- a/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Thu Apr 11 17:48:30 2013 +0200
+++ b/src/cpu/x86/vm/sharedRuntime_x86_64.cpp	Fri Apr 12 01:53:52 2013 +0200
@@ -1670,6 +1670,11 @@
   verify_oop_args(masm, method, sig_bt, regs);
   vmIntrinsics::ID iid = method->intrinsic_id();
 
+  if (iid == vmIntrinsics::_CompilerToVMImpl_executeCompiledMethod) {
+    __ jmp(Address(j_rarg3, nmethod::verified_entry_point_offset()));
+    return;
+  }
+
   // Now write the args into the outgoing interpreter space
   bool     has_receiver   = false;
   Register receiver_reg   = noreg;