diff options
Diffstat (limited to 'ArmPkg/Library/CompilerIntrinsicsLib/Arm/Llvm_int_lib.h')
-rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/Llvm_int_lib.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/Llvm_int_lib.h b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/Llvm_int_lib.h new file mode 100644 index 0000000000..e2c00a2033 --- /dev/null +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/Llvm_int_lib.h @@ -0,0 +1,83 @@ +/** @file + + Copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR> + + All rights reserved. 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 <Base.h> +#include <Library/DebugLib.h> + +#define CHAR_BIT 8 + +typedef union { + INT64 all; + struct { + UINT32 low; + INT32 high; + }; +} dwords; + +typedef union { + UINT64 all; + struct { + UINT32 low; + UINT32 high; + }; +} udwords; + +#if __GNUC__ + #define COUNT_LEADING_ZEROS(_a) __builtin_clz((_a)) + #define COUNT_TRAILING_ZEROS(_a) __builtin_ctz((_a)) +#else +#error COUNT_LEADING_ZEROS() and COUNT_TRAILING_ZEROS() macros not ported to your compiler +#endif |