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Diffstat (limited to 'lib/ashrti3.c')
-rw-r--r-- | lib/ashrti3.c | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/lib/ashrti3.c b/lib/ashrti3.c deleted file mode 100644 index ed43641c7ef71..0000000000000 --- a/lib/ashrti3.c +++ /dev/null @@ -1,46 +0,0 @@ -/* ===-- ashrti3.c - Implement __ashrti3 -----------------------------------=== - * - * The LLVM Compiler Infrastructure - * - * This file is dual licensed under the MIT and the University of Illinois Open - * Source Licenses. See LICENSE.TXT for details. - * - * ===----------------------------------------------------------------------=== - * - * This file implements __ashrti3 for the compiler_rt library. - * - * ===----------------------------------------------------------------------=== - */ - -#include "int_lib.h" - -#if __x86_64 - -/* Returns: arithmetic a >> b */ - -/* Precondition: 0 <= b < bits_in_tword */ - -ti_int -__ashrti3(ti_int a, si_int b) -{ - const int bits_in_dword = (int)(sizeof(di_int) * CHAR_BIT); - twords input; - twords result; - input.all = a; - if (b & bits_in_dword) /* bits_in_dword <= b < bits_in_tword */ - { - /* result.s.high = input.s.high < 0 ? -1 : 0 */ - result.s.high = input.s.high >> (bits_in_dword - 1); - result.s.low = input.s.high >> (b - bits_in_dword); - } - else /* 0 <= b < bits_in_dword */ - { - if (b == 0) - return a; - result.s.high = input.s.high >> b; - result.s.low = (input.s.high << (bits_in_dword - b)) | (input.s.low >> b); - } - return result.all; -} - -#endif /* __x86_64 */ |