Elias Naur 22507dea0e pre-allocate kernel4 scratch space in coarse.comp ...

coarse.comp knows the maximum stack depth, and can pre-allocate scratch
space for kernel4.comp. Kernel4 no longer contains allocations nor
control barriers.

The invocation local blend stack is gone as well; it didn't seem to make
any difference in performance to always use global memory for pushing
and popping.

Signed-off-by: Elias Naur <mail@eliasnaur.com>

2021-03-31 18:48:19 +02:00

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