Displaying 1 result from an estimated 1 matches for "r5tby9zyw6o".
2020 Sep 27
2
A 4x slower initialization loop in LLVM vs GCC and MSVC
...teract here, so I was
wondering if anyone knows more about that. It seems to me that the problem
starts
with SROA. Also, I'm not familiar with how these llvm.memcpy / memset are
handled down
the pipeline. Finally, the regalloc probably did not go very well.
Best,
Stefanos
[1] https://youtu.be/R5tBY9Zyw6o?t=3580
[2] https://godbolt.org/z/9oWhEn
[3] https://godbolt.org/z/xa4jo9
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