Mercurial > hg > truffle
comparison src/cpu/x86/vm/x86_32.ad @ 1396:d7f654633cfe
6946040: add intrinsic for short and char reverseBytes
Reviewed-by: never, twisti
Contributed-by: Hiroshi Yamauchi <yamauchi@google.com>
author | never |
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date | Mon, 26 Apr 2010 11:27:21 -0700 |
parents | 2883969d09e7 |
children | c18cbe5936b8 110501f54a99 |
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1385:bc32f286fae0 | 1396:d7f654633cfe |
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1 // | 1 // |
2 // Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. | 2 // Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved. |
3 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 // | 4 // |
5 // This code is free software; you can redistribute it and/or modify it | 5 // This code is free software; you can redistribute it and/or modify it |
6 // under the terms of the GNU General Public License version 2 only, as | 6 // under the terms of the GNU General Public License version 2 only, as |
7 // published by the Free Software Foundation. | 7 // published by the Free Software Foundation. |
6268 "XCHG $dst.lo $dst.hi" %} | 6268 "XCHG $dst.lo $dst.hi" %} |
6269 | 6269 |
6270 ins_cost(125); | 6270 ins_cost(125); |
6271 ins_encode( bswap_long_bytes(dst) ); | 6271 ins_encode( bswap_long_bytes(dst) ); |
6272 ins_pipe( ialu_reg_reg); | 6272 ins_pipe( ialu_reg_reg); |
6273 %} | |
6274 | |
6275 instruct bytes_reverse_unsigned_short(eRegI dst) %{ | |
6276 match(Set dst (ReverseBytesUS dst)); | |
6277 | |
6278 format %{ "BSWAP $dst\n\t" | |
6279 "SHR $dst,16\n\t" %} | |
6280 ins_encode %{ | |
6281 __ bswapl($dst$$Register); | |
6282 __ shrl($dst$$Register, 16); | |
6283 %} | |
6284 ins_pipe( ialu_reg ); | |
6285 %} | |
6286 | |
6287 instruct bytes_reverse_short(eRegI dst) %{ | |
6288 match(Set dst (ReverseBytesS dst)); | |
6289 | |
6290 format %{ "BSWAP $dst\n\t" | |
6291 "SAR $dst,16\n\t" %} | |
6292 ins_encode %{ | |
6293 __ bswapl($dst$$Register); | |
6294 __ sarl($dst$$Register, 16); | |
6295 %} | |
6296 ins_pipe( ialu_reg ); | |
6273 %} | 6297 %} |
6274 | 6298 |
6275 | 6299 |
6276 //---------- Zeros Count Instructions ------------------------------------------ | 6300 //---------- Zeros Count Instructions ------------------------------------------ |
6277 | 6301 |