[Bug other/25028] TImode-to-floating conversions broken

[jsm28 at gcc dot gnu dot org]

------- Comment #3 from jsm28 at gcc dot gnu dot org  2005-12-15 21:50 -------
Subject: Bug 25028

Author: jsm28
Date: Thu Dec 15 21:50:10 2005
New Revision: 108598

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108598
Log:
        PR other/25028
        * libgcc2.h (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Define.
        * libgcc2.c (__floatdixf, __floatundixf, __floatditf,
        __floatunditf): Use #error if type sizes don't match requirements
        of implementation.
        (__floatdisf, __floatdidf): Unify.  Possibly use XFmode or TFmode
        as wider floating-point type.  Use #error if type sizes don't
        match requirements of implementation.  Avoid overflow in computing
        Wtype_MAXp1_F * Wtype_MAXp1_F.  When special casing conversion,
        shift one more bit.  Cast 1 to DWtype or UDWtype for shifting.
        (__floatundisf, __floatundidf): Likewise.
        * config/ia64/hpux.h (XF_SIZE, TF_SIZE): Define.
        * config/ia64/ia64.c (ia64_init_libfuncs): Use
        _U_Qfcnvfxt_quad_to_quad and _U_Qfcnvxf_quad_to_quad for
        TFmode-TImode conversions.
        * doc/tm.texi (SF_SIZE, DF_SIZE, XF_SIZE, TF_SIZE): Document.

testsuite:
        * gcc.dg/torture/fp-int-convert-timode.c: Only XFAIL for LP64 IA64
        HP-UX.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/ia64/hpux.h
    trunk/gcc/config/ia64/ia64.c
    trunk/gcc/doc/tm.texi
    trunk/gcc/libgcc2.c
    trunk/gcc/libgcc2.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/torture/fp-int-convert-timode.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25028