Paweł Dziepak eb2e88e925 linearization_context: remove non-trivial operations from fast path ...

Since linearization_context is thread_local every time it is accessed
the compiler needs to emit code that checks if it was already
constructed and does so if it wasn't. Moreover, upon leaving the context
from the outermost scope the map needs to be cleared.

All these operations impose some performance overhead and aren't really
necessary if no buffers were linearised (the expected case). This patch
rearranges the code so that lineatization_context is trivially
constructible and the map is cleared only if it was modified.

2018-01-30 18:33:25 +01:00

1.6 KiB

Raw Blame History

View Raw