[Patch debug] Fix PR60655 partially.

[Richard Biener]

On Fri, Apr 4, 2014 at 12:27 PM, Ramana Radhakrishnan
<ramana.gcc@googlemail.com> wrote:
> On Thu, Mar 27, 2014 at 11:25 AM, Ramana Radhakrishnan <ramrad01@arm.com> wrote:
>> Hi,
>>
>>    This is a partial fix for PR60655 where dwarf2out.c rejects NOT of a
>> value in const_ok_for_output_1. There is still a problem with the testcase
>> on armhf where we get operations of the form, const (minus (const_int)
>> (symref)) without the -fdata-sections option which is just weird. I'm not
>> yet sure where this is produced from and will not have the time to dig
>> further today.
>>
>> As Jakub said on IRC, const_ok_for_output_1 is called only with partial
>> rtx's and therefore disabling minus (const_int) (symref) might not be the
>> best thing to do especially if this were part of plus (symref) (minus (const
>> int) (symref)) and both symrefs were in the same section. I will try and
>> find sometime to investigate this further tomorrow.
>>
>> Bootstrapped and regtested on armhf
>>
>> Bootstrap and regression test running on x86_64.
>>
>> Ok to commit ?
>
> Ping ?

Ok.

Thanks,
Richard.

> Ramana
>
>>
>> regards
>> Ramana
>>
>> gcc/
>>
>> <DATE>   Jakub Jelinek <jakub@redhat.com>
>>          Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
>>
>>         * dwarf2out.c (const_ok_for_output_1): Reject expressions containing
>> a NOT.
>>
>> gcc/testsuite
>>
>> <DATE>  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
>>
>>         * gcc.c-torture/compile/pr60655-1.c: New test.