diff options
Diffstat (limited to 'soft-fp')
| -rw-r--r-- | soft-fp/op-common.h | 13 | ||||
| -rw-r--r-- | soft-fp/soft-fp.h | 7 |
2 files changed, 17 insertions, 3 deletions
diff --git a/soft-fp/op-common.h b/soft-fp/op-common.h index b70026f..db75af5 100644 --- a/soft-fp/op-common.h +++ b/soft-fp/op-common.h @@ -1,5 +1,5 @@ /* Software floating-point emulation. Common operations. - Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc. + Copyright (C) 1997,1998,1999,2006,2007,2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson (rth@cygnus.com), Jakub Jelinek (jj@ultra.linux.cz), @@ -146,7 +146,11 @@ do { \ if (!_FP_EXP_NORMAL(fs, wc, X) && !_FP_FRAC_ZEROP_##wc(X)) \ { \ if (X##_e == 0) \ - FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ + { \ + if ((FP_CUR_EXCEPTIONS & FP_EX_INEXACT) \ + || (FP_TRAPPING_EXCEPTIONS & FP_EX_UNDERFLOW)) \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ + } \ else \ { \ if (!_FP_KEEPNANFRACP) \ @@ -226,13 +230,16 @@ do { \ { \ X##_e = 1; \ _FP_FRAC_SET_##wc(X, _FP_ZEROFRAC_##wc); \ + FP_SET_EXCEPTION(FP_EX_INEXACT); \ } \ else \ { \ X##_e = 0; \ _FP_FRAC_SRL_##wc(X, _FP_WORKBITS); \ - FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ } \ + if ((FP_CUR_EXCEPTIONS & FP_EX_INEXACT) \ + || (FP_TRAPPING_EXCEPTIONS & FP_EX_UNDERFLOW)) \ + FP_SET_EXCEPTION(FP_EX_UNDERFLOW); \ } \ else \ { \ diff --git a/soft-fp/soft-fp.h b/soft-fp/soft-fp.h index 46cb1cf..750c7fe 100644 --- a/soft-fp/soft-fp.h +++ b/soft-fp/soft-fp.h @@ -128,6 +128,13 @@ #define FP_CLEAR_EXCEPTIONS \ _fex = 0 +#define FP_CUR_EXCEPTIONS \ + (_fex) + +#ifndef FP_TRAPPING_EXCEPTIONS +#define FP_TRAPPING_EXCEPTIONS 0 +#endif + #define _FP_ROUND_NEAREST(wc, X) \ do { \ if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \ |