diff options
Diffstat (limited to 'lib/builtins/fp_fixuint_impl.inc')
-rw-r--r-- | lib/builtins/fp_fixuint_impl.inc | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/lib/builtins/fp_fixuint_impl.inc b/lib/builtins/fp_fixuint_impl.inc index d68ccf27a..5fd361611 100644 --- a/lib/builtins/fp_fixuint_impl.inc +++ b/lib/builtins/fp_fixuint_impl.inc @@ -1,9 +1,8 @@ //===-- lib/fixdfsi.c - Double-precision -> integer conversion ----*- 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. +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // @@ -15,25 +14,25 @@ #include "fp_lib.h" static __inline fixuint_t __fixuint(fp_t a) { - // Break a into sign, exponent, significand - const rep_t aRep = toRep(a); - const rep_t aAbs = aRep & absMask; - const int sign = aRep & signBit ? -1 : 1; - const int exponent = (aAbs >> significandBits) - exponentBias; - const rep_t significand = (aAbs & significandMask) | implicitBit; + // Break a into sign, exponent, significand + const rep_t aRep = toRep(a); + const rep_t aAbs = aRep & absMask; + const int sign = aRep & signBit ? -1 : 1; + const int exponent = (aAbs >> significandBits) - exponentBias; + const rep_t significand = (aAbs & significandMask) | implicitBit; - // If either the value or the exponent is negative, the result is zero. - if (sign == -1 || exponent < 0) - return 0; + // If either the value or the exponent is negative, the result is zero. + if (sign == -1 || exponent < 0) + return 0; - // If the value is too large for the integer type, saturate. - if ((unsigned)exponent >= sizeof(fixuint_t) * CHAR_BIT) - return ~(fixuint_t)0; + // If the value is too large for the integer type, saturate. + if ((unsigned)exponent >= sizeof(fixuint_t) * CHAR_BIT) + return ~(fixuint_t)0; - // If 0 <= exponent < significandBits, right shift to get the result. - // Otherwise, shift left. - if (exponent < significandBits) - return significand >> (significandBits - exponent); - else - return (fixuint_t)significand << (exponent - significandBits); + // If 0 <= exponent < significandBits, right shift to get the result. + // Otherwise, shift left. + if (exponent < significandBits) + return significand >> (significandBits - exponent); + else + return (fixuint_t)significand << (exponent - significandBits); } |