yann@677: Fix building gfortran for ARM.
yann@677: http://gcc.gnu.org/ml/gcc-patches/2007-05/msg01010.html
yann@677: ----
yann@677: 
yann@677: The patch below fixes a crash building libgfortran on arm-linux-gnueabi.
yann@677: 
yann@677: This target doesn't really have a 128-bit integer type, however it does use 
yann@677: TImode to represent the return value of certain special ABI defined library 
yann@677: functions. This results in type_for_size(TImode) being called.
yann@677: 
yann@677: Because TImode deosn't correspond to any gfortran integer kind 
yann@677: gfc_type_for_size returns NULL and we segfault shortly after.
yann@677: 
yann@677: The patch below fixes this by making gfc_type_for_size handle TImode in the 
yann@677: same way as the C frontend.
yann@677: 
yann@677: Tested on x86_64-linux and arm-linux-gnueabi.
yann@677: Applied to trunk.
yann@677: 
yann@677: Paul
yann@677: 
yann@677: 2007-05-15  Paul Brook  <paul@codesourcery.com>
yann@677: 
yann@677:     gcc/fortran/
yann@677:     * trans-types.c (gfc_type_for_size): Handle signed TImode.
yann@677: 
yann@677: diff -durN gcc-4.2.3.old/gcc/fortran/trans-types.c gcc-4.2.3/gcc/fortran/trans-types.c
yann@677: --- gcc-4.2.3.old/gcc/fortran/trans-types.c	2007-08-31 10:27:50.000000000 +0200
yann@677: +++ gcc-4.2.3/gcc/fortran/trans-types.c	2008-07-17 09:54:20.000000000 +0200
yann@677: @@ -1799,6 +1799,13 @@
yann@677:  	  if (type && bits == TYPE_PRECISION (type))
yann@677:  	    return type;
yann@677:  	}
yann@677: +
yann@677: +	/* Handle TImode as a special case because it is used by some backends
yann@677: +	   (eg. ARM) even though it is not available for normal use.  */
yann@677: +#if HOST_BITS_PER_WIDE_INT >= 64
yann@677: +	if (bits == TYPE_PRECISION (intTI_type_node))
yann@677: +	  return intTI_type_node;
yann@677: +#endif
yann@677:      }
yann@677:    else
yann@677:      {