[Bug fortran/40675] Support -fnosign-zero for SIGN intrinsic for Fortran 77 compatibility

[burnus at gcc dot gnu dot org]

------- Comment #15 from burnus at gcc dot gnu dot org  2009-07-08 19:35 -------
Subject: Bug 40675

Author: burnus
Date: Wed Jul  8 19:34:49 2009
New Revision: 149390

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149390
Log:
2009-07-08  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40675
        * simplify.c (gfc_simplify_sign): Handle signed zero correctly.
        * trans-intrinsic.c (gfc_conv_intrinsic_sign): Support
        -fno-sign-zero.
        * invoke.texi (-fno-sign-zero): Add text regarding SIGN
        * intrinsic.

2009-07-08  Tobias Burnus  <burnus@net-b.de>

        PR fortran/40675
        * gfortran.dg/nosigned_zero_1.f90: New test.
        * gfortran.dg/nosigned_zero_2.f90: New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/nosigned_zero_1.f90
    trunk/gcc/testsuite/gfortran.dg/nosigned_zero_2.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/invoke.texi
    trunk/gcc/fortran/simplify.c
    trunk/gcc/fortran/trans-intrinsic.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40675