ARM Packages: Fixed line endings
This large code change only modifies the line endings to be CRLF to be compliant with the EDK2 coding convention document. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14088 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
@@ -1,287 +1,287 @@
|
||||
/** @file
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||||
Compiler intrinsic for 64-bit compare, ported from LLVM code.
|
||||
|
||||
Copyright (c) 2008-2009, Apple Inc. All rights reserved.<BR>
|
||||
|
||||
This program and the accompanying materials
|
||||
are licensed and made available under the terms and conditions of the BSD License
|
||||
which accompanies this distribution. The full text of the license may be found at
|
||||
http://opensource.org/licenses/bsd-license.php
|
||||
|
||||
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||
|
||||
**/
|
||||
/**
|
||||
University of Illinois/NCSA
|
||||
Open Source License
|
||||
|
||||
Copyright (c) 2003-2008 University of Illinois at Urbana-Champaign.
|
||||
All rights reserved.
|
||||
|
||||
Developed by:
|
||||
|
||||
LLVM Team
|
||||
|
||||
University of Illinois at Urbana-Champaign
|
||||
|
||||
http://llvm.org
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal with
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
of the Software, and to permit persons to whom the Software is furnished to do
|
||||
so, subject to the following conditions:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimers.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimers in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the names of the LLVM Team, University of Illinois at
|
||||
Urbana-Champaign, nor the names of its contributors may be used to
|
||||
endorse or promote products derived from this Software without specific
|
||||
prior written permission.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
|
||||
SOFTWARE.
|
||||
**/
|
||||
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||||
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#include "Llvm_int_lib.h"
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// Effects: if rem != 0, *rem = a % b
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// Returns: a / b
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// Translated from Figure 3-40 of The PowerPC Compiler Writer's Guide
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UINT64
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__udivmoddi4 (UINT64 a, UINT64 b, UINT64* rem)
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{
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const unsigned n_uword_bits = sizeof(UINT32) * CHAR_BIT;
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const unsigned n_udword_bits = sizeof(UINT64) * CHAR_BIT;
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udwords n;
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n.all = a;
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udwords d;
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d.all = b;
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udwords q;
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udwords r;
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unsigned sr;
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if (b == 0) {
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// ASSERT (FALSE);
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return 0;
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}
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// special cases, X is unknown, K != 0
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if (n.high == 0)
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{
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if (d.high == 0)
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{
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// 0 X
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// ---
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// 0 X
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if (rem)
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*rem = n.low % d.low;
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return n.low / d.low;
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}
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// 0 X
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// ---
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// K X
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if (rem)
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*rem = n.low;
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return 0;
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}
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// n.high != 0
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if (d.low == 0)
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{
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if (d.high == 0)
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{
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// K X
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// ---
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// 0 0
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if (rem)
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*rem = n.high % d.low;
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return n.high / d.low;
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}
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// d.high != 0
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||||
if (n.low == 0)
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{
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// K 0
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// ---
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// K 0
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if (rem)
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{
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r.high = n.high % d.high;
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r.low = 0;
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*rem = r.all;
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}
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return n.high / d.high;
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}
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||||
// K K
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// ---
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// K 0
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if ((d.high & (d.high - 1)) == 0) // if d is a power of 2
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||||
{
|
||||
if (rem)
|
||||
{
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||||
r.low = n.low;
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||||
r.high = n.high & (d.high - 1);
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*rem = r.all;
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||||
}
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return n.high >> COUNT_TRAILING_ZEROS(d.high);
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}
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// K K
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// ---
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// K 0
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sr = COUNT_LEADING_ZEROS(d.high) - COUNT_LEADING_ZEROS(n.high);
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// 0 <= sr <= n_uword_bits - 2 or sr large
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||||
if (sr > n_uword_bits - 2)
|
||||
{
|
||||
if (rem)
|
||||
*rem = n.all;
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return 0;
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}
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++sr;
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// 1 <= sr <= n_uword_bits - 1
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// q.all = n.all << (n_udword_bits - sr);
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q.low = 0;
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q.high = n.low << (n_uword_bits - sr);
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// r.all = n.all >> sr;
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r.high = n.high >> sr;
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r.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
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||||
}
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||||
else // d.low != 0
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||||
{
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||||
if (d.high == 0)
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||||
{
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||||
// K X
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// ---
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||||
// 0 K
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||||
if ((d.low & (d.low - 1)) == 0) // if d is a power of 2
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||||
{
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||||
if (rem)
|
||||
*rem = n.low & (d.low - 1);
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if (d.low == 1)
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return n.all;
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||||
unsigned sr = COUNT_TRAILING_ZEROS(d.low);
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||||
q.high = n.high >> sr;
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||||
q.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
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||||
return q.all;
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||||
}
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||||
// K X
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||||
// ---
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||||
// 0 K
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||||
sr = 1 + n_uword_bits + COUNT_LEADING_ZEROS(d.low) - COUNT_LEADING_ZEROS(n.high);
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||||
// 2 <= sr <= n_udword_bits - 1
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// q.all = n.all << (n_udword_bits - sr);
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||||
// r.all = n.all >> sr;
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||||
// if (sr == n_uword_bits)
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||||
// {
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||||
// q.low = 0;
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||||
// q.high = n.low;
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// r.high = 0;
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// r.low = n.high;
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||||
// }
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||||
// else if (sr < n_uword_bits) // 2 <= sr <= n_uword_bits - 1
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||||
// {
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||||
// q.low = 0;
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||||
// q.high = n.low << (n_uword_bits - sr);
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||||
// r.high = n.high >> sr;
|
||||
// r.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
|
||||
// }
|
||||
// else // n_uword_bits + 1 <= sr <= n_udword_bits - 1
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||||
// {
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||||
// q.low = n.low << (n_udword_bits - sr);
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||||
// q.high = (n.high << (n_udword_bits - sr)) |
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// (n.low >> (sr - n_uword_bits));
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// r.high = 0;
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// r.low = n.high >> (sr - n_uword_bits);
|
||||
// }
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q.low = (n.low << (n_udword_bits - sr)) &
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((INT32)(n_uword_bits - sr) >> (n_uword_bits-1));
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||||
q.high = ((n.low << ( n_uword_bits - sr)) &
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((INT32)(sr - n_uword_bits - 1) >> (n_uword_bits-1))) |
|
||||
(((n.high << (n_udword_bits - sr)) |
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(n.low >> (sr - n_uword_bits))) &
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((INT32)(n_uword_bits - sr) >> (n_uword_bits-1)));
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r.high = (n.high >> sr) &
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((INT32)(sr - n_uword_bits) >> (n_uword_bits-1));
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r.low = ((n.high >> (sr - n_uword_bits)) &
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((INT32)(n_uword_bits - sr - 1) >> (n_uword_bits-1))) |
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(((n.high << (n_uword_bits - sr)) |
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(n.low >> sr)) &
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((INT32)(sr - n_uword_bits) >> (n_uword_bits-1)));
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}
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else
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{
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// K X
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// ---
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// K K
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sr = COUNT_LEADING_ZEROS(d.high) - COUNT_LEADING_ZEROS(n.high);
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// 0 <= sr <= n_uword_bits - 1 or sr large
|
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if (sr > n_uword_bits - 1)
|
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{
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if (rem)
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*rem = n.all;
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return 0;
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}
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++sr;
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// 1 <= sr <= n_uword_bits
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// q.all = n.all << (n_udword_bits - sr);
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q.low = 0;
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q.high = n.low << (n_uword_bits - sr);
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// r.all = n.all >> sr;
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// if (sr < n_uword_bits)
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// {
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// r.high = n.high >> sr;
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// r.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
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||||
// }
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||||
// else
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// {
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||||
// r.high = 0;
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// r.low = n.high;
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// }
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r.high = (n.high >> sr) &
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((INT32)(sr - n_uword_bits) >> (n_uword_bits-1));
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r.low = (n.high << (n_uword_bits - sr)) |
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((n.low >> sr) &
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((INT32)(sr - n_uword_bits) >> (n_uword_bits-1)));
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}
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}
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// Not a special case
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// q and r are initialized with:
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// q.all = n.all << (n_udword_bits - sr);
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// r.all = n.all >> sr;
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// 1 <= sr <= n_udword_bits - 1
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UINT32 carry = 0;
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for (; sr > 0; --sr)
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{
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// r:q = ((r:q) << 1) | carry
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r.high = (r.high << 1) | (r.low >> (n_uword_bits - 1));
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r.low = (r.low << 1) | (q.high >> (n_uword_bits - 1));
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q.high = (q.high << 1) | (q.low >> (n_uword_bits - 1));
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q.low = (q.low << 1) | carry;
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// carry = 0;
|
||||
// if (r.all >= d.all)
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// {
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// r.all -= d.all;
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// carry = 1;
|
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// }
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const INT64 s = (INT64)(d.all - r.all - 1) >> (n_udword_bits - 1);
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carry = s & 1;
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r.all -= d.all & s;
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}
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q.all = (q.all << 1) | carry;
|
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if (rem)
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*rem = r.all;
|
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return q.all;
|
||||
}
|
||||
/** @file
|
||||
Compiler intrinsic for 64-bit compare, ported from LLVM code.
|
||||
|
||||
Copyright (c) 2008-2009, Apple Inc. All rights reserved.<BR>
|
||||
|
||||
This program and the accompanying materials
|
||||
are licensed and made available under the terms and conditions of the BSD License
|
||||
which accompanies this distribution. The full text of the license may be found at
|
||||
http://opensource.org/licenses/bsd-license.php
|
||||
|
||||
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||
|
||||
**/
|
||||
/**
|
||||
University of Illinois/NCSA
|
||||
Open Source License
|
||||
|
||||
Copyright (c) 2003-2008 University of Illinois at Urbana-Champaign.
|
||||
All rights reserved.
|
||||
|
||||
Developed by:
|
||||
|
||||
LLVM Team
|
||||
|
||||
University of Illinois at Urbana-Champaign
|
||||
|
||||
http://llvm.org
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal with
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
||||
of the Software, and to permit persons to whom the Software is furnished to do
|
||||
so, subject to the following conditions:
|
||||
|
||||
* Redistributions of source code must retain the above copyright notice,
|
||||
this list of conditions and the following disclaimers.
|
||||
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimers in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
* Neither the names of the LLVM Team, University of Illinois at
|
||||
Urbana-Champaign, nor the names of its contributors may be used to
|
||||
endorse or promote products derived from this Software without specific
|
||||
prior written permission.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
|
||||
SOFTWARE.
|
||||
**/
|
||||
|
||||
|
||||
#include "Llvm_int_lib.h"
|
||||
|
||||
// Effects: if rem != 0, *rem = a % b
|
||||
// Returns: a / b
|
||||
|
||||
// Translated from Figure 3-40 of The PowerPC Compiler Writer's Guide
|
||||
|
||||
UINT64
|
||||
__udivmoddi4 (UINT64 a, UINT64 b, UINT64* rem)
|
||||
{
|
||||
const unsigned n_uword_bits = sizeof(UINT32) * CHAR_BIT;
|
||||
const unsigned n_udword_bits = sizeof(UINT64) * CHAR_BIT;
|
||||
udwords n;
|
||||
n.all = a;
|
||||
udwords d;
|
||||
d.all = b;
|
||||
udwords q;
|
||||
udwords r;
|
||||
unsigned sr;
|
||||
|
||||
if (b == 0) {
|
||||
// ASSERT (FALSE);
|
||||
return 0;
|
||||
}
|
||||
|
||||
// special cases, X is unknown, K != 0
|
||||
if (n.high == 0)
|
||||
{
|
||||
if (d.high == 0)
|
||||
{
|
||||
// 0 X
|
||||
// ---
|
||||
// 0 X
|
||||
if (rem)
|
||||
*rem = n.low % d.low;
|
||||
return n.low / d.low;
|
||||
}
|
||||
// 0 X
|
||||
// ---
|
||||
// K X
|
||||
if (rem)
|
||||
*rem = n.low;
|
||||
return 0;
|
||||
}
|
||||
// n.high != 0
|
||||
if (d.low == 0)
|
||||
{
|
||||
if (d.high == 0)
|
||||
{
|
||||
// K X
|
||||
// ---
|
||||
// 0 0
|
||||
if (rem)
|
||||
*rem = n.high % d.low;
|
||||
return n.high / d.low;
|
||||
}
|
||||
// d.high != 0
|
||||
if (n.low == 0)
|
||||
{
|
||||
// K 0
|
||||
// ---
|
||||
// K 0
|
||||
if (rem)
|
||||
{
|
||||
r.high = n.high % d.high;
|
||||
r.low = 0;
|
||||
*rem = r.all;
|
||||
}
|
||||
return n.high / d.high;
|
||||
}
|
||||
// K K
|
||||
// ---
|
||||
// K 0
|
||||
if ((d.high & (d.high - 1)) == 0) // if d is a power of 2
|
||||
{
|
||||
if (rem)
|
||||
{
|
||||
r.low = n.low;
|
||||
r.high = n.high & (d.high - 1);
|
||||
*rem = r.all;
|
||||
}
|
||||
return n.high >> COUNT_TRAILING_ZEROS(d.high);
|
||||
}
|
||||
// K K
|
||||
// ---
|
||||
// K 0
|
||||
sr = COUNT_LEADING_ZEROS(d.high) - COUNT_LEADING_ZEROS(n.high);
|
||||
// 0 <= sr <= n_uword_bits - 2 or sr large
|
||||
if (sr > n_uword_bits - 2)
|
||||
{
|
||||
if (rem)
|
||||
*rem = n.all;
|
||||
return 0;
|
||||
}
|
||||
++sr;
|
||||
// 1 <= sr <= n_uword_bits - 1
|
||||
// q.all = n.all << (n_udword_bits - sr);
|
||||
q.low = 0;
|
||||
q.high = n.low << (n_uword_bits - sr);
|
||||
// r.all = n.all >> sr;
|
||||
r.high = n.high >> sr;
|
||||
r.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
|
||||
}
|
||||
else // d.low != 0
|
||||
{
|
||||
if (d.high == 0)
|
||||
{
|
||||
// K X
|
||||
// ---
|
||||
// 0 K
|
||||
if ((d.low & (d.low - 1)) == 0) // if d is a power of 2
|
||||
{
|
||||
if (rem)
|
||||
*rem = n.low & (d.low - 1);
|
||||
if (d.low == 1)
|
||||
return n.all;
|
||||
unsigned sr = COUNT_TRAILING_ZEROS(d.low);
|
||||
q.high = n.high >> sr;
|
||||
q.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
|
||||
return q.all;
|
||||
}
|
||||
// K X
|
||||
// ---
|
||||
// 0 K
|
||||
sr = 1 + n_uword_bits + COUNT_LEADING_ZEROS(d.low) - COUNT_LEADING_ZEROS(n.high);
|
||||
// 2 <= sr <= n_udword_bits - 1
|
||||
// q.all = n.all << (n_udword_bits - sr);
|
||||
// r.all = n.all >> sr;
|
||||
// if (sr == n_uword_bits)
|
||||
// {
|
||||
// q.low = 0;
|
||||
// q.high = n.low;
|
||||
// r.high = 0;
|
||||
// r.low = n.high;
|
||||
// }
|
||||
// else if (sr < n_uword_bits) // 2 <= sr <= n_uword_bits - 1
|
||||
// {
|
||||
// q.low = 0;
|
||||
// q.high = n.low << (n_uword_bits - sr);
|
||||
// r.high = n.high >> sr;
|
||||
// r.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
|
||||
// }
|
||||
// else // n_uword_bits + 1 <= sr <= n_udword_bits - 1
|
||||
// {
|
||||
// q.low = n.low << (n_udword_bits - sr);
|
||||
// q.high = (n.high << (n_udword_bits - sr)) |
|
||||
// (n.low >> (sr - n_uword_bits));
|
||||
// r.high = 0;
|
||||
// r.low = n.high >> (sr - n_uword_bits);
|
||||
// }
|
||||
q.low = (n.low << (n_udword_bits - sr)) &
|
||||
((INT32)(n_uword_bits - sr) >> (n_uword_bits-1));
|
||||
q.high = ((n.low << ( n_uword_bits - sr)) &
|
||||
((INT32)(sr - n_uword_bits - 1) >> (n_uword_bits-1))) |
|
||||
(((n.high << (n_udword_bits - sr)) |
|
||||
(n.low >> (sr - n_uword_bits))) &
|
||||
((INT32)(n_uword_bits - sr) >> (n_uword_bits-1)));
|
||||
r.high = (n.high >> sr) &
|
||||
((INT32)(sr - n_uword_bits) >> (n_uword_bits-1));
|
||||
r.low = ((n.high >> (sr - n_uword_bits)) &
|
||||
((INT32)(n_uword_bits - sr - 1) >> (n_uword_bits-1))) |
|
||||
(((n.high << (n_uword_bits - sr)) |
|
||||
(n.low >> sr)) &
|
||||
((INT32)(sr - n_uword_bits) >> (n_uword_bits-1)));
|
||||
}
|
||||
else
|
||||
{
|
||||
// K X
|
||||
// ---
|
||||
// K K
|
||||
sr = COUNT_LEADING_ZEROS(d.high) - COUNT_LEADING_ZEROS(n.high);
|
||||
// 0 <= sr <= n_uword_bits - 1 or sr large
|
||||
if (sr > n_uword_bits - 1)
|
||||
{
|
||||
if (rem)
|
||||
*rem = n.all;
|
||||
return 0;
|
||||
}
|
||||
++sr;
|
||||
// 1 <= sr <= n_uword_bits
|
||||
// q.all = n.all << (n_udword_bits - sr);
|
||||
q.low = 0;
|
||||
q.high = n.low << (n_uword_bits - sr);
|
||||
// r.all = n.all >> sr;
|
||||
// if (sr < n_uword_bits)
|
||||
// {
|
||||
// r.high = n.high >> sr;
|
||||
// r.low = (n.high << (n_uword_bits - sr)) | (n.low >> sr);
|
||||
// }
|
||||
// else
|
||||
// {
|
||||
// r.high = 0;
|
||||
// r.low = n.high;
|
||||
// }
|
||||
r.high = (n.high >> sr) &
|
||||
((INT32)(sr - n_uword_bits) >> (n_uword_bits-1));
|
||||
r.low = (n.high << (n_uword_bits - sr)) |
|
||||
((n.low >> sr) &
|
||||
((INT32)(sr - n_uword_bits) >> (n_uword_bits-1)));
|
||||
}
|
||||
}
|
||||
// Not a special case
|
||||
// q and r are initialized with:
|
||||
// q.all = n.all << (n_udword_bits - sr);
|
||||
// r.all = n.all >> sr;
|
||||
// 1 <= sr <= n_udword_bits - 1
|
||||
UINT32 carry = 0;
|
||||
for (; sr > 0; --sr)
|
||||
{
|
||||
// r:q = ((r:q) << 1) | carry
|
||||
r.high = (r.high << 1) | (r.low >> (n_uword_bits - 1));
|
||||
r.low = (r.low << 1) | (q.high >> (n_uword_bits - 1));
|
||||
q.high = (q.high << 1) | (q.low >> (n_uword_bits - 1));
|
||||
q.low = (q.low << 1) | carry;
|
||||
// carry = 0;
|
||||
// if (r.all >= d.all)
|
||||
// {
|
||||
// r.all -= d.all;
|
||||
// carry = 1;
|
||||
// }
|
||||
const INT64 s = (INT64)(d.all - r.all - 1) >> (n_udword_bits - 1);
|
||||
carry = s & 1;
|
||||
r.all -= d.all & s;
|
||||
}
|
||||
q.all = (q.all << 1) | carry;
|
||||
if (rem)
|
||||
*rem = r.all;
|
||||
return q.all;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user