diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000-builtin.cc')
| -rw-r--r-- | gcc/config/rs6000/rs6000-builtin.cc | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/gcc/config/rs6000/rs6000-builtin.cc b/gcc/config/rs6000/rs6000-builtin.cc index 3ce729c..90ab39d 100644 --- a/gcc/config/rs6000/rs6000-builtin.cc +++ b/gcc/config/rs6000/rs6000-builtin.cc @@ -733,7 +733,22 @@ rs6000_init_builtins (void) if (TARGET_IEEEQUAD && TARGET_LONG_DOUBLE_128) ieee128_float_type_node = long_double_type_node; else - ieee128_float_type_node = float128_type_node; + { + /* For C we only need to register the __ieee128 name for + it. For C++, we create a distinct type which will mangle + differently (u9__ieee128) vs. _Float128 (DF128_) and behave + backwards compatibly. */ + if (float128t_type_node == NULL_TREE) + { + float128t_type_node = make_node (REAL_TYPE); + TYPE_PRECISION (float128t_type_node) + = TYPE_PRECISION (float128_type_node); + layout_type (float128t_type_node); + SET_TYPE_MODE (float128t_type_node, + TYPE_MODE (float128_type_node)); + } + ieee128_float_type_node = float128t_type_node; + } t = build_qualified_type (ieee128_float_type_node, TYPE_QUAL_CONST); lang_hooks.types.register_builtin_type (ieee128_float_type_node, "__ieee128"); |