Pergunta de entrevista da empresa Intel Corporation
The performance of a program is slower than the same program before the backend of the compiler has changed. What direction would you look into this issue and solve it?
Resposta da entrevista
Sigiloso
5 de jan. de 2016
I will utilize tools to find out hotspots in the target program. Then disassemble some particular hotspots, to see whether it's regard to loop, and CPU pipeline. Then try to unroll the loop, or rearrange the policy of the CG backend.