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Diffstat (limited to 'contrib/compiler-rt/lib/divsi3.c')
-rw-r--r-- | contrib/compiler-rt/lib/divsi3.c | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/contrib/compiler-rt/lib/divsi3.c b/contrib/compiler-rt/lib/divsi3.c deleted file mode 100644 index cd19de9525c0..000000000000 --- a/contrib/compiler-rt/lib/divsi3.c +++ /dev/null @@ -1,39 +0,0 @@ -/* ===-- divsi3.c - Implement __divsi3 -------------------------------------=== - * - * 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 __divsi3 for the compiler_rt library. - * - * ===----------------------------------------------------------------------=== - */ - -#include "int_lib.h" - -su_int COMPILER_RT_ABI __udivsi3(su_int n, su_int d); - -/* Returns: a / b */ - -ARM_EABI_FNALIAS(idiv, divsi3) - -COMPILER_RT_ABI si_int -__divsi3(si_int a, si_int b) -{ - const int bits_in_word_m1 = (int)(sizeof(si_int) * CHAR_BIT) - 1; - si_int s_a = a >> bits_in_word_m1; /* s_a = a < 0 ? -1 : 0 */ - si_int s_b = b >> bits_in_word_m1; /* s_b = b < 0 ? -1 : 0 */ - a = (a ^ s_a) - s_a; /* negate if s_a == -1 */ - b = (b ^ s_b) - s_b; /* negate if s_b == -1 */ - s_a ^= s_b; /* sign of quotient */ - /* - * On CPUs without unsigned hardware division support, - * this calls __udivsi3 (notice the cast to su_int). - * On CPUs with unsigned hardware division support, - * this uses the unsigned division instruction. - */ - return ((su_int)a/(su_int)b ^ s_a) - s_a; /* negate if s_a == -1 */ -} |