From 9224220fb392bc10bc60e394efc0bdea2c9d515b Mon Sep 17 00:00:00 2001 From: Michael Meissner Date: Mon, 1 Jun 1998 09:15:23 +0000 Subject: Fix IEEE negative zero problems From-SVN: r20169 --- gcc/config/fp-bit.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'gcc/config/fp-bit.c') diff --git a/gcc/config/fp-bit.c b/gcc/config/fp-bit.c index 4ff8e028cc7..ca4e0c5ba28 100644 --- a/gcc/config/fp-bit.c +++ b/gcc/config/fp-bit.c @@ -1,7 +1,7 @@ /* This is a software floating point library which can be used instead of the floating point routines in libgcc1.c for targets without hardware floating point. - Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc. This file is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the @@ -663,6 +663,12 @@ _fpadd_parts (fp_number_type * a, } if (iszero (b)) { + if (iszero (a)) + { + *tmp = *a; + tmp->sign = a->sign & b->sign; + return tmp; + } return a; } if (iszero (a)) @@ -1028,7 +1034,7 @@ _fpdiv_parts (fp_number_type * a, if (iszero (b)) { a->class = CLASS_INFINITY; - return b; + return a; } /* Calculate the mantissa by multiplying both 64bit numbers to get a -- cgit v1.2.1