[Bug fortran/34040] relation between kinds and C types (for math builtins) shouldn't be hardcoded

[fxcoudert at gcc dot gnu dot org]

------- Comment #8 from fxcoudert at gcc dot gnu dot org  2007-11-17 17:10 -------
First, a question: what are the math functions that should be used for DFmode
on sh with -m2e? For example, what function should we use for copysign(DFmode,
DFmode): is that copysignl?  

After talking about it on IRC...
  - this is a 4.3 regression, but the underlying problem is present since
gfortran was created
  - targets with DOUBLE_TYPE_SIZE != 64 aren't so common
  - even if we fix the front-end issue, we might have plenty of failures in the
testsuite because the testsuite widely uses 64-bit floating-points types, for
which we might not have math functions...


-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.3 Regression] ICE: in    |relation between kinds and C
                   |simplify_subreg, at         |types (for math builtins)
                   |simplify-rtx.c:4921 building|shouldn't be hardcoded
                   |libgfortran                 |
   Target Milestone|4.3.0                       |4.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34040