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[Bug middle-end/49545] [4.7 Regression] New C++ test failures
- From: "jason at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 28 Jun 2011 06:33:26 +0000
- Subject: [Bug middle-end/49545] [4.7 Regression] New C++ test failures
- Auto-submitted: auto-generated
- References: <bug-49545-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49545
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org,
| |rsandifo at gcc dot gnu.org
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-28 06:31:11 UTC ---
constexpr-ptrmem.C is now failing because the C++ ABI uses the low bit of the
function pointer field in a pointer-to-member function to indicate whether that
field is actually a function pointer or a vtable index, and constexpr-ptrmem.C
relies on being able to fold (&fn) & 1 to 0.
I assume that the ARM C++ ABI variant uses a different representation.