minix/sys/external/bsd/compiler_rt/dist/lib/subdf3.c
Lionel Sambuc 4684ddb6aa LLVM Minix changes
- import libcxx
 - reduce targets to the one when compiled as a tools

Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
2014-07-28 17:05:59 +02:00

29 lines
884 B
C

//===-- lib/adddf3.c - Double-precision subtraction ---------------*- C -*-===//
//
// 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 double-precision soft-float subtraction with the
// IEEE-754 default rounding (to nearest, ties to even).
//
//===----------------------------------------------------------------------===//
#define DOUBLE_PRECISION
#include "fp_lib.h"
fp_t COMPILER_RT_ABI __adddf3(fp_t a, fp_t b);
ARM_EABI_FNALIAS(dsub, subdf3)
// Subtraction; flip the sign bit of b and add.
COMPILER_RT_ABI fp_t
__subdf3(fp_t a, fp_t b) {
return __adddf3(a, fromRep(toRep(b) ^ signBit));
}
/* FIXME: rsub for ARM EABI */