sed + ninja clang-format + fix up spacing for common code.
If you are unhappy that I did not manually change the whitespace of your driver,
you need to enable clang-format for it so the formatting would happen
automatically.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24428>
True for all backends supporting barriers. This lets us collapse lots of code,
since scoped_barriers are based on the SPIR-V definition.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23191>
The new code splits the work into a few passes instead of trying to do
everything with a single pass. This helps to apply the new clarified
rules for structured control flow in the SPIR-V specification, in
particular the "exit construct" rules.
First find an appropriate ordering for the blocks, based on the
approach taken by Tint (WebGPU compiler). Then, with those blocks
in order, identify the SPIR-V constructs start and end positions.
Finally, walk the blocks again to emit NIR for each of them, "opening"
and "closing" the necessary NIR constructs as we reach the start and
end positions of the SPIR-V constructs.
There are a couple of interesting choices when mapping the constructs
to NIR:
- NIR doesn't have something like a switch, so like the previous code,
we lower the switch construct to a series of conditionals for each
case.
- And, unlike the previous code, when there's a need to perform a
break from a construct that NIR doesn't directly support (e.g. inside
a case construct, conditionally breaking early from the switch), we
now use a combination of a NIR loop and an NIR if. Extra code is
added to ensure that loop_break and loop_continues are propagated
to the right loop.
This should fix various issues with valid SPIR-V that previously
resulted in "Invalid back or cross-edge in the CFG" errors.
Thanks to Alan Baker and David Neto for their explanations of
ordering the blocks, in the Tint code and in presentations to
the SPIR-V WG.
Thanks to Jack Clark for providing a lot of valuable tests used to
validate this MR.
Closes: #5973, #6369
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17922>
When running in the CI environment, instead of crashing the test
binary, it is preferable to just fail gracefully (in this case return
a NULL shader) like is done in release mode, so other tests continue
to be executed.
For convenience add a variable break_on_failure to the test so the
breaking behavior can be re-enable in individual tests when debugging.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21512>
This new mode will be only used for the actual payload variables and
not the number of launched mesh shader workgroups, which will still
be treated as an output.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14930>
Fix defect reported by Coverity Scan.
Uninitialized pointer field (UNINIT_CTOR)
uninit_member: Non-static class member shader is not initialized in this
constructor nor in any functions that it calls
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6640>
