llvm dev - Oct 2010 - [LLVMdev] dragonegg vs -ffast-math?

I am finding that llvm 2.8 rc3 with dragonegg svn built against current
gcc-4_5-branch doesn't appear to allow gfortran to use -ffast-math.
Attempting
to compile code using the dragonegg plugin under gcc 4.5.2  with that option
produces the error...

f951: Unknown command line argument '--enable-finite-only-fp-math'. 
Try: 'f951 -help'

The standard gcc 4.5.2 gfortran compiler has no problem with that option.
       Jack

Hi Jack,
>    I am finding that llvm 2.8 rc3 with dragonegg svn built against current
> gcc-4_5-branch doesn't appear to allow gfortran to use -ffast-math.
Attempting
> to compile code using the dragonegg plugin under gcc 4.5.2  with that
option produces the error...
>
> f951: Unknown command line argument '--enable-finite-only-fp-math'.
Try: 'f951 -help'
>
> The standard gcc 4.5.2 gfortran compiler has no problem with that option.
>         Jack
I've fixed this in commit 115781.  The fix will be in the dragonegg 2.8
release,
which should come out sometime this week.

Ciao,

Duncan.

On Wed, Oct 06, 2010 at 02:26:35PM +0200, Duncan Sands
wrote:
> Hi Jack,
> 
> >    I am finding that llvm 2.8 rc3 with dragonegg svn built against
current
> > gcc-4_5-branch doesn't appear to allow gfortran to use
-ffast-math. Attempting
> > to compile code using the dragonegg plugin under gcc 4.5.2  with that
option produces the error...
> >
> > f951: Unknown command line argument
'--enable-finite-only-fp-math'.  Try: 'f951 -help'
> >
> > The standard gcc 4.5.2 gfortran compiler has no problem with that
option.
> >         Jack
> 
> I've fixed this in commit 115781.  The fix will be in the dragonegg 2.8
release,
> which should come out sometime this week.
> 
> Ciao,
> 
> Duncan.
Duncan,
   Thanks. I can confirm this is in fact fixed in current dragonegg svn. On a
different
question, what are the prospects getting aermod to compile under dragonegg? I am
still
seeing compile failures of the form...

de-gfortran45 -ffast-math -funroll-loops -msse3 -O3 aermod.f90 -o aermod
Assertion failed: ((NumParams == FTy->getNumParams() || (FTy->isVarArg()
&& NumParams > FTy->getNumParams())) && "Calling a
function with bad signature!"), function init, file
/sw/src/fink.build/llvm-clang-2.8-1/llvm-2.8/lib/VMCore/Instructions.cpp, line
242.
*** WARNING *** there are active plugins, do not report this as a bug unless you
can reproduce it without enabling any plugins.

This also seems to be the same failure preventing capacita.f90, gas_dyn.f90,
induct.f90, protein.f90, rnflow.f90 and
test_fpu.f90 from compiling.
         Jack
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