re PR target/23552 (FAIL: gfortran.dg/large_real_kind_1.f90)
PR target/23552
* acinclude.m4 (LIBGFOR_CHECK_FOR_BROKEN_ISFINITE): New.
(LIBGFOR_CHECK_FOR_BROKEN_ISNAN): New.
(LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY): New.
* configure.ac (LIBGFOR_CHECK_FOR_BROKEN_ISFINITE): Add use.
(LIBGFOR_CHECK_FOR_BROKEN_ISNAN): Add use.
(LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY): Add use.
* configure: Regenerate.
* config.h.in: Regenerate.
* libgfortan.h (isfinite): undef if broken, set if needed.
(isnan): undef if broken, set if needed.
(fpclassify): undef if broken, set if needed.
* io/write.c: Remove TODO comment about working isfinite.
* intrinsics/c99_functions.c (round): Use isfinite instead
of fpclassify.
* intrinsics/c99_functions.c (roundf): Ditto.
From-SVN: r104710
This commit is contained in:
Steve Ellcey
Steve Ellcey
parent
ca7a5aec06
commit
118ea208fa
@ -1,3 +1,22 @@
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2005-09-27 Steve Ellcey <sje@cup.hp.com>
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PR target/23552
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* acinclude.m4 (LIBGFOR_CHECK_FOR_BROKEN_ISFINITE): New.
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(LIBGFOR_CHECK_FOR_BROKEN_ISNAN): New.
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(LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY): New.
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* configure.ac (LIBGFOR_CHECK_FOR_BROKEN_ISFINITE): Add use.
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(LIBGFOR_CHECK_FOR_BROKEN_ISNAN): Add use.
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(LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY): Add use.
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* configure: Regenerate.
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* config.h.in: Regenerate.
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* libgfortan.h (isfinite): undef if broken, set if needed.
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(isnan): undef if broken, set if needed.
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(fpclassify): undef if broken, set if needed.
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* io/write.c: Remove TODO comment about working isfinite.
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* intrinsics/c99_functions.c (round): Use isfinite instead
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of fpclassify.
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* intrinsics/c99_functions.c (roundf): Ditto.
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2005-09-24 Janne Blomqvist <jblomqvi@cc.hut.fi>
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* io.h: Changed prototypes of list_formatted_{read|write}.
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@ -230,3 +230,122 @@ esac])])
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if test x"$have_crlf" = xyes; then
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AC_DEFINE(HAVE_CRLF, 1, [Define if CRLF is line terminator.])
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fi])
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dnl Check whether isfinite is broken.
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dnl The most common problem is that it does not work on long doubles.
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AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_ISFINITE], [
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AC_CACHE_CHECK([whether isfinite is broken],
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have_broken_isfinite, [
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libgfor_check_for_broken_isfinite_save_LIBS=$LIBS
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LIBS="$LIBS -lm"
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AC_TRY_RUN([
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#ifdef HAVE_MATH_H
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#include <math.h>
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#endif
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#include <float.h>
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int main ()
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{
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#ifdef isfinite
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#ifdef LDBL_MAX
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if (!isfinite(LDBL_MAX)) return 1;
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#endif
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#ifdef DBL_MAX
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if (!isfinite(DBL_MAX)) return 1;
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#endif
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#endif
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return 0;
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}], have_broken_isfinite=no, have_broken_isfinite=yes, [
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case "${target}" in
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hppa*-*-hpux*) have_broken_isfinite=yes ;;
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*) have_broken_isfinite=no ;;
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esac])]
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LIBS=$libgfor_check_for_broken_isfinite_save_LIBS)
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if test x"$have_broken_isfinite" = xyes; then
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AC_DEFINE(HAVE_BROKEN_ISFINITE, 1, [Define if isfinite is broken.])
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fi])
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dnl Check whether isnan is broken.
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dnl The most common problem is that it does not work on long doubles.
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AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_ISNAN], [
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AC_CACHE_CHECK([whether isnan is broken],
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have_broken_isnan, [
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libgfor_check_for_broken_isnan_save_LIBS=$LIBS
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LIBS="$LIBS -lm"
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AC_TRY_RUN([
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#ifdef HAVE_MATH_H
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#include <math.h>
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#endif
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#include <float.h>
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int main ()
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{
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#ifdef isnan
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#ifdef LDBL_MAX
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{
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long double x;
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x = __builtin_nanl ("");
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if (!isnan(x)) return 1;
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if (isnan(LDBL_MAX)) return 1;
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#ifdef NAN
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x = (long double) NAN;
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if (!isnan(x)) return 1;
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#endif
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}
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#endif
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#ifdef DBL_MAX
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{
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double y;
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y = __builtin_nan ("");
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if (!isnan(y)) return 1;
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if (isnan(DBL_MAX)) return 1;
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#ifdef NAN
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y = (double) NAN;
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if (!isnan(y)) return 1;
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#endif
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}
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#endif
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#endif
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return 0;
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}], have_broken_isnan=no, have_broken_isnan=yes, [
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case "${target}" in
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hppa*-*-hpux*) have_broken_isnan=yes ;;
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*) have_broken_isnan=no ;;
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esac])]
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LIBS=$libgfor_check_for_broken_isnan_save_LIBS)
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if test x"$have_broken_isnan" = xyes; then
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AC_DEFINE(HAVE_BROKEN_ISNAN, 1, [Define if isnan is broken.])
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fi])
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dnl Check whether fpclassify is broken.
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dnl The most common problem is that it does not work on long doubles.
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AC_DEFUN([LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY], [
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AC_CACHE_CHECK([whether fpclassify is broken],
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have_broken_fpclassify, [
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libgfor_check_for_broken_fpclassify_save_LIBS=$LIBS
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LIBS="$LIBS -lm"
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AC_TRY_RUN([
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#ifdef HAVE_MATH_H
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#include <math.h>
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#endif
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#include <float.h>
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int main ()
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{
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#ifdef fpclassify
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#ifdef LDBL_MAX
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if (fpclassify(LDBL_MAX) == FP_NAN
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|| fpclassify(LDBL_MAX) == FP_INFINITE) return 1;
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#endif
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#ifdef DBL_MAX
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if (fpclassify(DBL_MAX) == FP_NAN
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|| fpclassify(DBL_MAX) == FP_INFINITE) return 1;
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#endif
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#endif
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return 0;
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}], have_broken_fpclassify=no, have_broken_fpclassify=yes, [
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case "${target}" in
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hppa*-*-hpux*) have_broken_fpclassify=yes ;;
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*) have_broken_fpclassify=no ;;
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esac])]
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LIBS=$libgfor_check_for_broken_fpclassify_save_LIBS)
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if test x"$have_broken_fpclassify" = xyes; then
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AC_DEFINE(HAVE_BROKEN_FPCLASSIFY, 1, [Define if fpclassify is broken.])
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fi])
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@ -75,6 +75,15 @@
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/* Define to 1 if the target supports __attribute__((visibility(...))). */
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#undef HAVE_ATTRIBUTE_VISIBILITY
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/* Define if fpclassify is broken. */
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#undef HAVE_BROKEN_FPCLASSIFY
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/* Define if isfinite is broken. */
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#undef HAVE_BROKEN_ISFINITE
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/* Define if isnan is broken. */
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#undef HAVE_BROKEN_ISNAN
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/* libm includes cabs */
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#undef HAVE_CABS
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247
libgfortran/configure
vendored
247
libgfortran/configure
vendored
@ -19028,7 +19028,7 @@ _ACEOF
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fi
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# Hack for AIX
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# On AIX, clog is present in libm as __clog
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echo "$as_me:$LINENO: checking for __clog in -lm" >&5
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echo $ECHO_N "checking for __clog in -lm... $ECHO_C" >&6
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if test "${ac_cv_lib_m___clog+set}" = set; then
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@ -19107,6 +19107,251 @@ _ACEOF
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fi
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# Check for a isfinite macro that works on long doubles.
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echo "$as_me:$LINENO: checking whether isfinite is broken" >&5
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echo $ECHO_N "checking whether isfinite is broken... $ECHO_C" >&6
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if test "${have_broken_isfinite+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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libgfor_check_for_broken_isfinite_save_LIBS=$LIBS
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LIBS="$LIBS -lm"
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if test "$cross_compiling" = yes; then
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case "${target}" in
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hppa*-*-hpux*) have_broken_isfinite=yes ;;
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*) have_broken_isfinite=no ;;
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esac
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else
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#ifdef HAVE_MATH_H
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#include <math.h>
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#endif
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#include <float.h>
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int main ()
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{
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#ifdef isfinite
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#ifdef LDBL_MAX
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if (!isfinite(LDBL_MAX)) return 1;
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#endif
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#ifdef DBL_MAX
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if (!isfinite(DBL_MAX)) return 1;
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#endif
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#endif
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return 0;
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}
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_ACEOF
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rm -f conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } && { ac_try='./conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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have_broken_isfinite=no
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else
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echo "$as_me: program exited with status $ac_status" >&5
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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( exit $ac_status )
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have_broken_isfinite=yes
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fi
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rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
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fi
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LIBS=$libgfor_check_for_broken_isfinite_save_LIBS
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fi
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echo "$as_me:$LINENO: result: $have_broken_isfinite" >&5
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echo "${ECHO_T}$have_broken_isfinite" >&6
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if test x"$have_broken_isfinite" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_BROKEN_ISFINITE 1
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_ACEOF
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fi
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# Check for a isnan macro that works on long doubles.
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echo "$as_me:$LINENO: checking whether isnan is broken" >&5
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echo $ECHO_N "checking whether isnan is broken... $ECHO_C" >&6
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if test "${have_broken_isnan+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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libgfor_check_for_broken_isnan_save_LIBS=$LIBS
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LIBS="$LIBS -lm"
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if test "$cross_compiling" = yes; then
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case "${target}" in
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hppa*-*-hpux*) have_broken_isnan=yes ;;
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*) have_broken_isnan=no ;;
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esac
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else
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#ifdef HAVE_MATH_H
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#include <math.h>
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#endif
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#include <float.h>
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int main ()
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{
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#ifdef isnan
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#ifdef LDBL_MAX
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{
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long double x;
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x = __builtin_nanl ("");
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if (!isnan(x)) return 1;
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if (isnan(LDBL_MAX)) return 1;
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#ifdef NAN
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x = (long double) NAN;
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if (!isnan(x)) return 1;
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#endif
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}
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#endif
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#ifdef DBL_MAX
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{
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double y;
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y = __builtin_nan ("");
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if (!isnan(y)) return 1;
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if (isnan(DBL_MAX)) return 1;
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#ifdef NAN
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y = (double) NAN;
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if (!isnan(y)) return 1;
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#endif
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}
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#endif
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#endif
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return 0;
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}
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_ACEOF
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rm -f conftest$ac_exeext
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
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(eval $ac_link) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } && { ac_try='./conftest$ac_exeext'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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have_broken_isnan=no
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else
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echo "$as_me: program exited with status $ac_status" >&5
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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( exit $ac_status )
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have_broken_isnan=yes
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fi
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rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
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fi
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LIBS=$libgfor_check_for_broken_isnan_save_LIBS
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fi
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echo "$as_me:$LINENO: result: $have_broken_isnan" >&5
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echo "${ECHO_T}$have_broken_isnan" >&6
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if test x"$have_broken_isnan" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_BROKEN_ISNAN 1
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_ACEOF
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fi
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# Check for a fpclassify macro that works on long doubles.
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echo "$as_me:$LINENO: checking whether fpclassify is broken" >&5
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echo $ECHO_N "checking whether fpclassify is broken... $ECHO_C" >&6
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if test "${have_broken_fpclassify+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
|
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else
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|
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libgfor_check_for_broken_fpclassify_save_LIBS=$LIBS
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LIBS="$LIBS -lm"
|
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if test "$cross_compiling" = yes; then
|
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|
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case "${target}" in
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hppa*-*-hpux*) have_broken_fpclassify=yes ;;
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*) have_broken_fpclassify=no ;;
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esac
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else
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#ifdef HAVE_MATH_H
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#include <math.h>
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#endif
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#include <float.h>
|
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int main ()
|
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{
|
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#ifdef fpclassify
|
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#ifdef LDBL_MAX
|
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if (fpclassify(LDBL_MAX) == FP_NAN
|
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|| fpclassify(LDBL_MAX) == FP_INFINITE) return 1;
|
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#endif
|
||||
#ifdef DBL_MAX
|
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if (fpclassify(DBL_MAX) == FP_NAN
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|| fpclassify(DBL_MAX) == FP_INFINITE) return 1;
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||||
#endif
|
||||
#endif
|
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return 0;
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}
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_ACEOF
|
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rm -f conftest$ac_exeext
|
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if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
|
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(eval $ac_link) 2>&5
|
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
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(exit $ac_status); } && { ac_try='./conftest$ac_exeext'
|
||||
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
|
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
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(exit $ac_status); }; }; then
|
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have_broken_fpclassify=no
|
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else
|
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echo "$as_me: program exited with status $ac_status" >&5
|
||||
echo "$as_me: failed program was:" >&5
|
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sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
( exit $ac_status )
|
||||
have_broken_fpclassify=yes
|
||||
fi
|
||||
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
|
||||
fi
|
||||
LIBS=$libgfor_check_for_broken_fpclassify_save_LIBS
|
||||
fi
|
||||
echo "$as_me:$LINENO: result: $have_broken_fpclassify" >&5
|
||||
echo "${ECHO_T}$have_broken_fpclassify" >&6
|
||||
if test x"$have_broken_fpclassify" = xyes; then
|
||||
|
||||
cat >>confdefs.h <<\_ACEOF
|
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#define HAVE_BROKEN_FPCLASSIFY 1
|
||||
_ACEOF
|
||||
|
||||
fi
|
||||
|
||||
# Fallback in case isfinite is not available.
|
||||
echo "$as_me:$LINENO: checking for finite in -lm" >&5
|
||||
echo $ECHO_N "checking for finite in -lm... $ECHO_C" >&6
|
||||
|
||||
@ -328,6 +328,15 @@ AC_CHECK_LIB([m],[ynl],[AC_DEFINE([HAVE_YNL],[1],[libm includes ynl])])
|
||||
# On AIX, clog is present in libm as __clog
|
||||
AC_CHECK_LIB([m],[__clog],[AC_DEFINE([HAVE_CLOG],[1],[libm includes clog])])
|
||||
|
||||
# Check for a isfinite macro that works on long doubles.
|
||||
LIBGFOR_CHECK_FOR_BROKEN_ISFINITE
|
||||
|
||||
# Check for a isnan macro that works on long doubles.
|
||||
LIBGFOR_CHECK_FOR_BROKEN_ISNAN
|
||||
|
||||
# Check for a fpclassify macro that works on long doubles.
|
||||
LIBGFOR_CHECK_FOR_BROKEN_FPCLASSIFY
|
||||
|
||||
# Fallback in case isfinite is not available.
|
||||
AC_CHECK_LIB([m],[finite],[AC_DEFINE([HAVE_FINITE],[1],[libm includes finite])])
|
||||
|
||||
|
||||
@ -344,12 +344,8 @@ double
|
||||
round(double x)
|
||||
{
|
||||
double t;
|
||||
#if defined(fpclassify)
|
||||
int i;
|
||||
i = fpclassify(x);
|
||||
if (i == FP_INFINITE || i == FP_NAN)
|
||||
if (!isfinite (x))
|
||||
return (x);
|
||||
#endif
|
||||
|
||||
if (x >= 0.0)
|
||||
{
|
||||
@ -377,13 +373,8 @@ float
|
||||
roundf(float x)
|
||||
{
|
||||
float t;
|
||||
#if defined(fpclassify)
|
||||
int i;
|
||||
|
||||
i = fpclassify(x);
|
||||
if (i == FP_INFINITE || i == FP_NAN)
|
||||
if (!isfinite (x))
|
||||
return (x);
|
||||
#endif
|
||||
|
||||
if (x >= 0.0)
|
||||
{
|
||||
|
||||
@ -821,9 +821,6 @@ write_float (fnode *f, const char *source, int len)
|
||||
|
||||
if (f->format != FMT_B && f->format != FMT_O && f->format != FMT_Z)
|
||||
{
|
||||
/* TODO: there are some systems where isfinite is not able to work
|
||||
with long double variables. We should detect this case and
|
||||
provide our own version for isfinite. */
|
||||
res = isfinite (n);
|
||||
if (res == 0)
|
||||
{
|
||||
|
||||
@ -177,13 +177,33 @@ typedef off_t gfc_offset;
|
||||
|
||||
When isfinite is not available, try to use one of the
|
||||
alternatives, or bail out. */
|
||||
#if (!defined(isfinite) || defined(__CYGWIN__))
|
||||
|
||||
#if defined(HAVE_BROKEN_ISFINITE) || defined(__CYGWIN__)
|
||||
#undef isfinite
|
||||
#if defined(fpclassify)
|
||||
#define isfinite(x) (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
|
||||
#else
|
||||
#define isfinite(x) ((x) - (x) == 0)
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_BROKEN_ISNAN)
|
||||
#undef isnan
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_BROKEN_FPCLASSIFY)
|
||||
#undef fpclassify
|
||||
#endif
|
||||
|
||||
#if !defined(isfinite)
|
||||
#if !defined(fpclassify)
|
||||
#define isfinite(x) ((x) - (x) == 0)
|
||||
#else
|
||||
#define isfinite(x) (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE)
|
||||
#endif /* !defined(fpclassify) */
|
||||
#endif /* !defined(isfinite) */
|
||||
|
||||
#if !defined(isnan)
|
||||
#if !defined(fpclassify)
|
||||
#define isnan(x) ((x) != (x))
|
||||
#else
|
||||
#define isnan(x) (fpclassify(x) == FP_NAN)
|
||||
#endif /* !defined(fpclassify) */
|
||||
#endif /* !defined(isfinite) */
|
||||
|
||||
/* TODO: find the C99 version of these an move into above ifdef. */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user