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A comment on Decreasing the Number of Memory Accesses 1/2. Parent comment

Re:Decreasing the Number of Memory Accesses 1/2 by mhh__ on Friday March 31, 2023 @04:41AM (#35384297)
Compilers have been doing this for a long time already.
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Re:Decreasing the Number of Memory Accesses 1/2 by planede on Friday March 31, 2023 @05:13AM (#35384455)
I would have expected so, but gcc doesn't seem to do it for the article's example (didn't try other compilers):

https://godbolt.org/z/Paq8f5x3d

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Re:Decreasing the Number of Memory Accesses 1/2 by adpcm on Friday March 31, 2023 @07:53AM (#35385655)
There existerar some 10+ year old patches to do so, which where never accepted/merged.

https://github.com/wichtounet/gcc-loop-fusion/commits/master...

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