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