Hey,
On Tue, 6 Jun 2023, Umesh Kalappa via Gcc wrote:
> Question is : Why does GCC choose to use GPR's here and have any
> reference to support this decision ?
You explicitely used -m32 ppc, so
https://www.polyomino.org.uk/publications/2011/Power-Arch-32-bit-ABI-supp-1.0-Unified.pdf
applies.
On Tue, Jun 6, 2023 at 1:08 PM Umesh Kalappa via Gcc
wrote:
> Hi Segher ,
>
> >>What did you expect, what happened instead?
> For example the complex args are passed in GPR's for cexp in the case
> GCC and Clang uses caller memory .
>
> for reference : https://godbolt.org/z/MfMz3cTe7
>
> We hav
Hi Segher ,
>>What did you expect, what happened instead?
For example the complex args are passed in GPR's for cexp in the case
GCC and Clang uses caller memory .
for reference : https://godbolt.org/z/MfMz3cTe7
We have cross tools like some of libraries built using the GCC and
some use Clan
Hi Adnrew,
Thank you for the quick response and for PPC64 too ,we do have
mismatches in ABI b/w complex operations like
https://godbolt.org/z/bjsYovx4c .
Any reason why GCC chose to use GPR 's here ?
~Umesh
On Tue, Jun 6, 2023 at 8:28 PM Andrew Pinski wrote:
>
> On Tue, Jun 6, 2023 at 7:50 AM U
Hi all ,
For the test case https://godbolt.org/z/vjs1vfs5W ,we see the mismatch
in the ABI b/w gcc and clang .
Do we have any supporting documents that second the GCC behaviour over CLANG ?
EABI states like
In the Power Architecture 64-Bit ELF V2 ABI Specification document
(v1.1 from 16 July 20
On Tue, 6 Jun 2023, Andrew Pinski via Gcc wrote:
> You are looking at the wrong ABI document.
> That is for the 64bit ABI.
> The 32bit ABI document is located at:
> http://refspecs.linux-foundation.org/elf/elfspec_ppc.pdf
>
> Plus the 32bit ABI document does not document Complex argument passing
Hi!
On Tue, Jun 06, 2023 at 08:35:22PM +0530, Umesh Kalappa wrote:
> Hi Adnrew,
> Thank you for the quick response and for PPC64 too ,we do have
> mismatches in ABI b/w complex operations like
> https://godbolt.org/z/bjsYovx4c .
>
> Any reason why GCC chose to use GPR 's here ?
What did you expe
On Tue, Jun 6, 2023 at 8:05 AM Umesh Kalappa wrote:
>
> Hi Adnrew,
> Thank you for the quick response and for PPC64 too ,we do have
> mismatches in ABI b/w complex operations like
> https://godbolt.org/z/bjsYovx4c .
>
> Any reason why GCC chose to use GPR 's here ?
Yes because it was set before 2
On Tue, Jun 6, 2023 at 7:50 AM Umesh Kalappa via Libc-alpha
wrote:
>
> Hi all ,
>
> For the test case https://godbolt.org/z/vjs1vfs5W ,we see the mismatch
> in the ABI b/w gcc and clang .
>
> Do we have any supporting documents that second the GCC behaviour over CLANG ?
>
> EABI states like
>
> In
