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//===-- 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"
#include "int_lib.h"
fp_t __adddf3(fp_t a, fp_t b);
ARM_EABI_FNALIAS(dsub, subdf3);
// Subtraction; flip the sign bit of b and add.
fp_t __subdf3(fp_t a, fp_t b) {
return __adddf3(a, fromRep(toRep(b) ^ signBit));
}
/* FIXME: rsub for ARM EABI */
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