[patch] [4.6] Backport strict-volatile-bitfields fix PR51200

Richard Guenther richard.guenther@gmail.com
Wed Feb 15 11:10:00 GMT 2012


On Wed, Feb 15, 2012 at 8:23 AM, Ye Joey <joey.ye.cc@gmail.com> wrote:
> Ping^2

All hunks apart from the expr.c hunk from 182545 are ok (thus, all hunks
that are explicitly guarded with -fstrict-volatile-bitfields).

Please use -p for diffs, I couldn't spot the place in expr.c you patch,
the line-numbers are off and the patch isn't against the 4.6 branch.

Please state how you tested you backports.

r182649 is ok (obvious ontop of 182545), likewise r182685.

Richard.

> On Mon, Jan 16, 2012 at 11:21 AM, Ye Joey <joey.ye.cc@gmail.com> wrote:
>> Ping
>>
>> On Tue, Dec 27, 2011 at 10:19 AM, Ye Joey <joey.ye.cc@gmail.com> wrote:
>>> Fix PR51200. Backport trunk 182545, 182649, 182685 to 4.6.
>>>
>>> OK to 4.6?
>>>
>>> - Joey
>>>
>>>        2011-12-20  Bernd Schmidt  <bernds@codesourcery.com>
>>>
>>>        PR middle-end/51200
>>>        * expr.c (store_field): Avoid a direct store if the mode is larger
>>>        than the size of the bit field.
>>>        * stor-layout.c (layout_decl): If flag_strict_volatile_bitfields,
>>>        treat non-volatile bit fields like volatile ones.
>>>        * toplev.c (process_options): Disallow combination of
>>>        -fstrict-volatile-bitfields and ABI versions less than 2.
>>>        * config/arm/arm.c (arm_option_override): Don't enable
>>>        flag_strict_volatile_bitfields if the ABI version is less than 2.
>>>        * config/h8300/h8300.c (h8300_option_override): Likewise.
>>>        * config/rx/rx.c (rx_option_override): Likewise.
>>>        * config/m32c/m32c.c (m32c_option_override): Likewise.
>>>        * config/sh/sh.c (sh_option_override): Likewise.
>>>
>>>        2011-12-22  Joey Ye  <joey.ye@arm.com>
>>>
>>>        * toplev.c (process_options): Fix typo.
>>>
>>> testsute
>>>        2011-12-20  Bernd Schmidt  <bernds@codesourcery.com>
>>>
>>>        PR middle-end/51200
>>>        * gcc.target/arm/volatile-bitfields-4.c: New test.
>>>        * c-c++-common/abi-bf.c: New test.
>>>
>>>        2011-12-26  Joey Ye  <joey.ye@arm.com>
>>>
>>>        PR middle-end/51200
>>>        * gcc.dg/volatile-bitfields-2.c: New test.



More information about the Gcc-patches mailing list