Backport: add and use preprocessors macros for loop unrolling (#32499) #596
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Define preprocessor macros that exoand to pragmas controlling loop unrolling.
Two set of macrso are defined:
- CMS_UNROLL_LOOP and friends are applied on both host and device compilation
- CMS_DEVICE_UNROLL_LOOP and friends is only applied in device compilation,
and expands to nothing on the host
The supported compilers are
- CUDA nvcc
- HIP (untested)
- gcc
- clang
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Define preprocessor macros that expand to pragmas controlling loop unrolling.
Two set of macros are defined:
The supported compilers are
Use CMS_UNROLL_LOOP instead of #pragma unroll.