PR libstdc++/5625

* builtin-types.def (BT_WORD, BT_FN_WORD_PTR): New.
* builtins.c (expand_builtin): Handle BUILT_IN_EXTEND_POINTER.
* builtins.def (BUILT_IN_EXTEND_POINTER): New.
* except.c (expand_builtin_extend_pointer): New.
* except.h (expand_builtin_extend_pointer): Declare.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@77554 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 20 insertions, 0 deletions

diff --git a/gcc/except.c b/gcc/except.c
index 8c4c726cf1e..5d85e512358 100644
--- a/gcc/except.c
+++ b/gcc/except.c
@@ -3076,6 +3076,26 @@ expand_eh_return (void)
 
   emit_label (around_label);
 }
+
+/* Convert a ptr_mode address ADDR_TREE to a Pmode address controlled by
+   POINTERS_EXTEND_UNSIGNED and return it.  */
+
+rtx
+expand_builtin_extend_pointer (tree addr_tree)
+{
+  rtx addr = expand_expr (addr_tree, NULL_RTX, ptr_mode, 0);
+  int extend;
+
+#ifdef POINTERS_EXTEND_UNSIGNED
+  extend = POINTERS_EXTEND_UNSIGNED;
+#else
+  /* The previous EH code did an unsigned extend by default, so we do this also
+     for consistency.  */
+  extend = 1;
+#endif
+
+  return convert_modes (word_mode, ptr_mode, addr, extend);
+}
 
 /* In the following functions, we represent entries in the action table
    as 1-based indices.  Special cases are: