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Cycles: Resolve recent performance regression in oneAPI implementation for Intel® Arc™ GPUs

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Recently, performance with oneAPI have regressed due some recent
changes in Blender itself. This commit's changes is resolving this
and also improve compilation time for oneAPI backend first
execution (or Blender compilation time in case of AoT).

Regression have appeared after 5152c7c152 and not related to the
changes itself, but increase of kernels complexity introduced with
it. Changes in this commit is marking some Blender functions as
noinlined for oneAPI backend, which helps GPU compiler to deal with
this complexity without any negative side-effects on performance.
This commit is contained in:
Nikita Sirgienko 2022-08-01 12:43:31 +02:00
parent e2be6bc03f
commit 76169472d3
1 changed files with 1 additions and 1 deletions
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2
intern/cycles/kernel/device/oneapi/compat.h
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@ -30,7 +30,7 @@
#define ccl_global
#define ccl_always_inline __attribute__((always_inline))
#define ccl_device_inline inline
#define ccl_noinline
#define ccl_noinline __attribute__((noinline))
#define ccl_inline_constant const constexpr
#define ccl_static_constant const
#define ccl_device_forceinline __attribute__((always_inline))