This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH][testsuite] Fix oversized bitfield warning.
- From: Jeff Law <law at redhat dot com>
- To: Matthew Wahab <matthew dot wahab at arm dot com>, gcc-patches at gcc dot gnu dot org
- Date: Wed, 14 Jan 2015 14:42:22 -0700
- Subject: Re: [PATCH][testsuite] Fix oversized bitfield warning.
- Authentication-results: sourceware.org; auth=none
- References: <54B64ADF dot 5090901 at arm dot com>
On 01/14/15 03:54, Matthew Wahab wrote:
Hello,
Test case g++.dg/torture/20141013.C (added
https://gcc.gnu.org/ml/gcc-patches/2014-10/msg01190.html) triggers the
warning
--
20141013.C:45:23: warning: width of 'tree_base::code' exceeds its type
--
on arm-none-eabi.
The code specifies a bitfield of size 16 with an enum as the underlying
type. On arm-none-eabi, enums are packed by default (-fshort-enums) so
the bitfield is oversized and the warning is correct.
This patch adds -fno-short-enums to the compiler options for the test case.
Testing: Ran g++.dg/torture/dg-torture.exp for arm-none-eabi and
arm-none-linux-gnueabihf.
Matthew
2015-01-13 Matthew Wahab <matthew.wahab@arm.com>
* testsuite/g++.dg/torture/20141013.C: Set -fno-short-enums.
OK for the trunk. Please install.
Thanks,
Jeff