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soft-fp: add macro FP_NO_EXCEPTIONS.
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ChangeLog
@ -1,5 +1,23 @@
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2013-10-12 Joseph Myers <joseph@codesourcery.com>
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* soft-fp/soft-fp.h [FP_NO_EXCEPTIONS] (FP_SET_EXCEPTION):
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Undefine and redefine.
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[FP_NO_EXCEPTIONS] (FP_CUR_EXCEPTIONS): Likewise.
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[FP_NO_EXCEPTIONS] (FP_TRAPPING_EXCEPTIONS): Likewise.
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[FP_NO_EXCEPTIONS] (FP_ROUNDMODE): Likewise.
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* soft-fp/floatditf.c (FP_NO_EXCEPTIONS): Define macro.
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(__floatditf): Don't use FP_DECL_EX or FP_HANDLE_EXCEPTIONS.
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* soft-fp/floatsidf.c (FP_NO_EXCEPTIONS): Define macro.
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(__floatsidf): Don't use FP_DECL_EX or FP_HANDLE_EXCEPTIONS.
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* soft-fp/floatsitf.c (FP_NO_EXCEPTIONS): Define macro.
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(__floatsitf): Don't use FP_DECL_EX or FP_HANDLE_EXCEPTIONS.
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* soft-fp/floatunditf.c (FP_NO_EXCEPTIONS): Define macro.
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(__floatunditf): Don't use FP_DECL_EX or FP_HANDLE_EXCEPTIONS.
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* soft-fp/floatunsidf.c (FP_NO_EXCEPTIONS): Define macro.
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(__floatunsidf): Don't use FP_DECL_EX or FP_HANDLE_EXCEPTIONS.
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* soft-fp/floatunsitf.c (FP_NO_EXCEPTIONS): Define macro.
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(__floatunsitf): Don't use FP_DECL_EX or FP_HANDLE_EXCEPTIONS.
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[BZ #16032]
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* soft-fp/op-2.h (_FP_DIV_MEAT_2_udiv): Shift numerator right
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without decrementing exponent if mantissa >= that for the
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@ -28,18 +28,17 @@
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define FP_NO_EXCEPTIONS
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#include "soft-fp.h"
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#include "quad.h"
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TFtype __floatditf(DItype i)
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{
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FP_DECL_EX;
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FP_DECL_Q(A);
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TFtype a;
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FP_FROM_INT_Q(A, i, DI_BITS, UDItype);
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FP_PACK_RAW_Q(a, A);
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FP_HANDLE_EXCEPTIONS;
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return a;
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}
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@ -28,18 +28,17 @@
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define FP_NO_EXCEPTIONS
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#include "soft-fp.h"
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#include "double.h"
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DFtype __floatsidf(SItype i)
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{
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FP_DECL_EX;
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FP_DECL_D(A);
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DFtype a;
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FP_FROM_INT_D(A, i, SI_BITS, USItype);
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FP_PACK_RAW_D(a, A);
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FP_HANDLE_EXCEPTIONS;
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return a;
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}
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@ -28,18 +28,17 @@
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define FP_NO_EXCEPTIONS
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#include "soft-fp.h"
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#include "quad.h"
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TFtype __floatsitf(SItype i)
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{
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FP_DECL_EX;
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FP_DECL_Q(A);
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TFtype a;
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FP_FROM_INT_Q(A, i, SI_BITS, USItype);
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FP_PACK_RAW_Q(a, A);
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FP_HANDLE_EXCEPTIONS;
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return a;
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}
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@ -28,19 +28,18 @@
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define FP_NO_EXCEPTIONS
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#include "soft-fp.h"
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#include "quad.h"
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TFtype
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__floatunditf(UDItype i)
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{
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FP_DECL_EX;
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FP_DECL_Q(A);
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TFtype a;
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FP_FROM_INT_Q(A, i, DI_BITS, UDItype);
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FP_PACK_RAW_Q(a, A);
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FP_HANDLE_EXCEPTIONS;
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return a;
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}
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define FP_NO_EXCEPTIONS
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#include "soft-fp.h"
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#include "double.h"
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DFtype __floatunsidf(USItype i)
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{
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FP_DECL_EX;
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FP_DECL_D(A);
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DFtype a;
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FP_FROM_INT_D(A, i, SI_BITS, USItype);
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FP_PACK_RAW_D(a, A);
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FP_HANDLE_EXCEPTIONS;
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return a;
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}
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define FP_NO_EXCEPTIONS
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#include "soft-fp.h"
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#include "quad.h"
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TFtype
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__floatunsitf(USItype i)
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{
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FP_DECL_EX;
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FP_DECL_Q(A);
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TFtype a;
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FP_FROM_INT_Q(A, i, SI_BITS, USItype);
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FP_PACK_RAW_Q(a, A);
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FP_HANDLE_EXCEPTIONS;
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return a;
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}
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@ -142,6 +142,30 @@
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#define FP_TRAPPING_EXCEPTIONS 0
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#endif
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/* A file using soft-fp may define FP_NO_EXCEPTIONS before including
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soft-fp.h to indicate that, although a macro used there could raise
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exceptions, or do rounding and potentially thereby raise
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exceptions, for some arguments, for the particular arguments used
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in that file no exceptions or rounding can occur. Such a file
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should not itself use macros relating to handling exceptions and
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rounding modes; this is only for indirect uses (in particular, in
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_FP_FROM_INT and the macros it calls). */
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#ifdef FP_NO_EXCEPTIONS
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#undef FP_SET_EXCEPTION
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#define FP_SET_EXCEPTION(ex) do {} while (0)
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#undef FP_CUR_EXCEPTIONS
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#define FP_CUR_EXCEPTIONS 0
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#undef FP_TRAPPING_EXCEPTIONS
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#define FP_TRAPPING_EXCEPTIONS 0
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#undef FP_ROUNDMODE
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#define FP_ROUNDMODE FP_RND_ZERO
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#endif
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#define _FP_ROUND_NEAREST(wc, X) \
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do { \
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if ((_FP_FRAC_LOW_##wc(X) & 15) != _FP_WORK_ROUND) \
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