Re: [PATCH] fix small const data for riscv

[Palmer Dabbelt <palmer@dabbelt.com>]

On Fri, 11 Nov 2022 11:56:08 PST (-0800), gcc-patches@gcc.gnu.org wrote:
> On Fri, Nov 11, 2022 at 5:03 AM Oria Chen via Gcc-patches
> <gcc-patches@gcc.gnu.org> wrote:
>>
>> gcc/testsuite ChangeLog:
>>
>> 2022-11-11  Oria Chen  <oriachiuan@gmail.com>
>>
>>         * gcc/testsuite/gcc.dg/pr25521.c: Add compile option "-msmall-data-limit=0" to avoid using .srodata section.
>
> I noticed g++.dg/cpp0x/constexpr-rom.C has some slightly different
> handling here.
> Seems like there should be a generic way to add
> -G0/-msmall-data-limit=0 if we don't want small data for a testcase
> rather than the current scheme of things.

There's also a few tests like these where we modified the regex to match 
.sadata in addition to .data, which fixes the problem on MIPS too.

>
> Thanks,
> Andrew Pinski
>
>> ---
>>  gcc/testsuite/gcc.dg/pr25521.c | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/gcc/testsuite/gcc.dg/pr25521.c b/gcc/testsuite/gcc.dg/pr25521.c
>> index 74fe2ae6626..628ddf1a761 100644
>> --- a/gcc/testsuite/gcc.dg/pr25521.c
>> +++ b/gcc/testsuite/gcc.dg/pr25521.c
>> @@ -2,7 +2,8 @@
>>     sections.
>>
>>     { dg-require-effective-target elf }
>> -   { dg-do compile } */
>> +   { dg-do compile }
>> +   { dg-options "-msmall-data-limit=0" { target { riscv*-*-* } } } */
>>
>>  const volatile int foo = 30;
>>
>> --
>> 2.37.2
>>