+2008-06-18 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
+
+ * targhooks.h (struct gcc_target): New member unwind_word_mode.
+ (default_unwind_word_mode): Add prototype.
+ * targhooks.c (default_unwind_word_mode): New function.
+ (default_eh_return_filter_mode): Return targetm.unwind_word_mode ()
+ instead of word_mode.
+ * target-def.h (TARGET_UNWIND_WORD_MODE): New macro.
+ (TARGET_INITIALIZER): Use it.
+
+ * c-common.c (handle_mode_attribute): Support "unwind_word"
+ mode attribute.
+ * unwind-generic.h (_Unwind_Word, _Unwind_Sword): Use it.
+
+ * except.c (init_eh): Use targetm.unwind_word_mode () instead of
+ word_mode to access SjLj_Function_Context member "data".
+ (sjlj_emit_dispatch_table): Likewise. Also, perform type
+ conversion from targetm.eh_return_filter_mode () to
+ targetm.unwind_word_mode () if they differ.
+
+ * builtin-types.def (BT_UNWINDWORD): New primitive type.
+ (BT_FN_UNWINDWORD_PTR): New function type.
+ (BT_FN_WORD_PTR): Remove.
+ * builtins.def (BUILT_IN_EXTEND_POINTER): Use BT_FN_UNWINDWORD_PTR.
+ * except.c (expand_builtin_extend_pointer): Convert pointer to
+ targetm.unwind_word_mode () instead of word_mode.
+
+ * config/spu/spu-protos.h (spu_eh_return_filter_mode): Remove.
+ * config/spu/spu.c (spu_eh_return_filter_mode): Remove.
+ (spu_unwind_word_mode): New function.
+ (TARGET_EH_RETURN_FILTER_MODE): Do not define.
+ (TARGET_UNWIND_WORD_MODE): Define.
+ * config/spu/t-spu-elf (TARGET_LIBGCC2_CFLAGS): Remove -D__word__=SI.
+