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Clang builds a working 2.6.36 Kernel

Clang builds a working 2.6.36 Kernel

Posted Oct 26, 2010 13:04 UTC (Tue) by juliank (guest, #45896)
In reply to: Clang builds a working 2.6.36 Kernel by juliank
Parent article: Clang builds a working 2.6.36 Kernel

It might be that clang is able to optimize (-O2)

for (*va = 0; a < b; a++)
    *va += a;

to

*va = (1 + b)*(b/2) - b

- as per Gauss: 1+2+...+N=(1 + N)*(N/2)


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