Re: g++ doesn't unroll a loop it should unroll

[Steven Bosscher]

On 12/13/06, Benoît Jacob <[EMAIL PROTECTED]> wrote:

g++ -DUNROLL -O3 toto.cpp -o toto   ---> toto runs in 0.3 seconds
g++ -O3 toto.cpp -o toto            ---> toto runs in 1.9 seconds

So what can I do? Is that a bug in g++? If yes, any hope to see it fixed soon?

You could try adding -funroll-loops.

Gr.
Steven