[Bug tree-optimization/64434] [5 Regression] Performance regression after operand canonicalization (r216728).

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64434

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Shouldn't you cache the result of count_num_stmt in some SSA_NAME_VERSION
indexed vector?  Otherwise it can be expensive on pathological testcases.
And with the caching I'd hope it should be cheap enough that you could do that
even outside of loops.