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Re: [patch] 2 patches for PR tree-optimization/34648

Richard Kenner wrote:
Are you sure this makes sense? The act of throwing an exception writes to (thread local) memory. This seems like it would always be a side effect. 

Memoization is a side-effect too, but it doesn't prevent the function
from being pure.

No, it was agreed a while ago that memoization does not make a function pure; I had even proposed a patch to make some insn-attrtab functions pure. That's because you cannot detect when the memoization cache is cleared.

Paolo

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