Mercurial > hg > truffle

diff src/share/vm/c1/c1_GraphBuilder.cpp @ 11080:b800986664f4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32 Summary: add intrinsics using new instruction to interpreter, C1, C2, for suitable x86; add test Reviewed-by: kvn, twisti
author drchase
date Tue, 02 Jul 2013 20:42:12 -0400
parents 46f6f063b272
children 7894695caee6 f98f5d48f511
line wrap: on
line diff
--- a/src/share/vm/c1/c1_GraphBuilder.cpp	Tue Jul 02 07:51:31 2013 +0200
+++ b/src/share/vm/c1/c1_GraphBuilder.cpp	Tue Jul 02 20:42:12 2013 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2013, Oracle and/or its affiliates. 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
@@ -3461,6 +3461,14 @@
       preserves_state = true;
       break;
 
+    case vmIntrinsics::_updateCRC32:
+    case vmIntrinsics::_updateBytesCRC32:
+    case vmIntrinsics::_updateByteBufferCRC32:
+      if (!UseCRC32Intrinsics) return false;
+      cantrap = false;
+      preserves_state = true;
+      break;
+
     case vmIntrinsics::_loadFence :
     case vmIntrinsics::_storeFence:
     case vmIntrinsics::_fullFence :