Hi,
as I tried to analyze/explain in the audit trail, apparently we are
doing something bogus in grokdeclarator wrt unsigned __int128, which
leads to the latter being wrongly rejected with -pedantic-errors, at
variance with plain __int128 or __int128_t / __uint128_t for that
matter. Thus I prepared the below. Tested x86_64-linux.
Ok for mainline?
Thanks,
Paolo.
/////////////////////
/cp
2011-09-20 Paolo Carlini <paolo.carl...@oracle.com>
PR c++/50454
* decl.c (grokdeclarator): Don't reject unsigned __int128 with
-pedantic-errors.
/testsuite
2011-09-20 Paolo Carlini <paolo.carl...@oracle.com>
PR c++/50454
* g++.dg/ext/int128-1.C: New.
Index: testsuite/g++.dg/ext/int128-1.C
===================================================================
--- testsuite/g++.dg/ext/int128-1.C (revision 0)
+++ testsuite/g++.dg/ext/int128-1.C (revision 0)
@@ -0,0 +1,11 @@
+// PR c++/50454
+// { dg-do compile { target int128 } }
+
+template<typename T>
+ struct limits;
+
+template<>
+ struct limits<__int128> { };
+
+template<>
+ struct limits<unsigned __int128> { };
Index: cp/decl.c
===================================================================
--- cp/decl.c (revision 179004)
+++ cp/decl.c (working copy)
@@ -8695,22 +8695,6 @@ grokdeclarator (const cp_declarator *declarator,
if (flag_pedantic_errors)
ok = 0;
}
- if (explicit_int128)
- {
- if (int128_integer_type_node == NULL_TREE)
- {
- error ("%<__int128%> is not supported by this target");
- ok = 0;
- }
- else if (pedantic)
- {
- pedwarn (input_location, OPT_pedantic,
- "ISO C++ does not support %<__int128%> for %qs",
- name);
- if (flag_pedantic_errors)
- ok = 0;
- }
- }
}
/* Discard the type modifiers if they are invalid. */
