Re: [RFC v2] RISC-V: Add Ztso atomic mappings

2023-08-08 Thread Patrick O'Neill
On 7/31/23 22:04, Jeff Law wrote: On 7/17/23 15:28, Patrick O'Neill wrote: The RISC-V Ztso extension currently has no effect on generated code. With the additional ordering constraints guarenteed by Ztso, we can emit more optimized atomic mappings than the RVWMO mappings. This PR defines a

Re: [RFC v2] RISC-V: Add Ztso atomic mappings

2023-07-31 Thread Jeff Law via Gcc-patches
On 7/17/23 15:28, Patrick O'Neill wrote: The RISC-V Ztso extension currently has no effect on generated code. With the additional ordering constraints guarenteed by Ztso, we can emit more optimized atomic mappings than the RVWMO mappings. This PR defines a strengthened version of Andrea Parri

[RFC v2] RISC-V: Add Ztso atomic mappings

2023-07-17 Thread Patrick O'Neill
The RISC-V Ztso extension currently has no effect on generated code. With the additional ordering constraints guarenteed by Ztso, we can emit more optimized atomic mappings than the RVWMO mappings. This PR defines a strengthened version of Andrea Parri's proposed Ztso mappings ("Proposed Mapping"