Backport of "compiler: Use util/bitset.h for system_values_read" to 20.3
requested to merge cmarcelo/mesa:backport/20.3/compiler-use-bitset-for-system-values-read into staging/20.3
It is currently a bitset on top of a uint64_t but there are already more than 64 values. Change to use BITSET to cover all the SYSTEM_VALUE_MAX bits.
Backported from 9f3d5e99 ("compiler: Use util/bitset.h for system_values_read").
Cc: mesa-stable Reviewed-by: Jason Ekstrand jason@jlekstrand.net Reviewed-by: Karol Herbst kherbst@redhat.com Acked-by: Jesse Natalie jenatali@microsoft.com Acked-by: Alyssa Rosenzweig alyssa.rosenzweig@collabora.com Acked-by: Pierre-Eric Pelloux-Prayer pierre-eric.pelloux-prayer@amd.com Acked-by: Alejandro Piñeiro apinheiro@igalia.com