diff options
Diffstat (limited to 'ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.c')
-rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.c | 154 |
1 files changed, 77 insertions, 77 deletions
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.c b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.c index f9e5afe912..972fc065e9 100644 --- a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.c +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.c @@ -1,77 +1,77 @@ -/** @file - Compiler intrinsic for 64-bit mod, 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" - -UINT64 __udivmoddi4(UINT64 a, UINT64 b, UINT64* rem); - -// Returns: a % b - -INT64 -__moddi3(INT64 a, INT64 b) -{ - const int bits_in_dword_m1 = (int)(sizeof(INT64) * CHAR_BIT) - 1; - INT64 s = b >> bits_in_dword_m1; // s = b < 0 ? -1 : 0 - b = (b ^ s) - s; // negate if s == -1 - s = a >> bits_in_dword_m1; // s = a < 0 ? -1 : 0 - a = (a ^ s) - s; // negate if s == -1 - INT64 r; - __udivmoddi4(a, b, (UINT64*)&r); - return (r ^ s) - s; // negate if s == -1 -} - +/** @file
+ Compiler intrinsic for 64-bit mod, 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"
+
+UINT64 __udivmoddi4(UINT64 a, UINT64 b, UINT64* rem);
+
+// Returns: a % b
+
+INT64
+__moddi3(INT64 a, INT64 b)
+{
+ const int bits_in_dword_m1 = (int)(sizeof(INT64) * CHAR_BIT) - 1;
+ INT64 s = b >> bits_in_dword_m1; // s = b < 0 ? -1 : 0
+ b = (b ^ s) - s; // negate if s == -1
+ s = a >> bits_in_dword_m1; // s = a < 0 ? -1 : 0
+ a = (a ^ s) - s; // negate if s == -1
+ INT64 r;
+ __udivmoddi4(a, b, (UINT64*)&r);
+ return (r ^ s) - s; // negate if s == -1
+}
+
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