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3402aac7d9
Trailing spaces create issue/warning when generating/applying patches. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ronald Cron <ronald.cron@arm.com> Reviewed-By: Olivier Martin <olivier.martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15833 6f19259b-4bc3-4df7-8a09-765794883524
99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
/** @file
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Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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/**
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University of Illinois/NCSA
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Open Source License
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Copyright (c) 2003-2008 University of Illinois at Urbana-Champaign.
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All rights reserved.
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Developed by:
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LLVM Team
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University of Illinois at Urbana-Champaign
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http://llvm.org
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal with
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimers.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimers in the
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documentation and/or other materials provided with the distribution.
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* Neither the names of the LLVM Team, University of Illinois at
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Urbana-Champaign, nor the names of its contributors may be used to
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endorse or promote products derived from this Software without specific
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prior written permission.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
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SOFTWARE.
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**/
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#include <Base.h>
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#include "Llvm_int_lib.h"
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// Returns: a * b
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static
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INT64
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__muldsi3(UINT32 a, UINT32 b)
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{
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dwords r;
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const int bits_in_word_2 = (int)(sizeof(INT32) * CHAR_BIT) / 2;
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const UINT32 lower_mask = (UINT32)~0 >> bits_in_word_2;
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r.low = (a & lower_mask) * (b & lower_mask);
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UINT32 t = r.low >> bits_in_word_2;
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r.low &= lower_mask;
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t += (a >> bits_in_word_2) * (b & lower_mask);
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r.low += (t & lower_mask) << bits_in_word_2;
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r.high = t >> bits_in_word_2;
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t = r.low >> bits_in_word_2;
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r.low &= lower_mask;
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t += (b >> bits_in_word_2) * (a & lower_mask);
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r.low += (t & lower_mask) << bits_in_word_2;
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r.high += t >> bits_in_word_2;
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r.high += (a >> bits_in_word_2) * (b >> bits_in_word_2);
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return r.all;
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}
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// Returns: a * b
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INT64
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__muldi3(INT64 a, INT64 b)
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{
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dwords x;
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x.all = a;
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dwords y;
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y.all = b;
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dwords r;
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r.all = __muldsi3(x.low, y.low);
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r.high += x.high * y.low + x.low * y.high;
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return r.all;
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}
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