[llvm-dev] Working on FP SCEV Analysis

[Lawrence, Peter via llvm-dev]

Elena,
             Is this the sort of thing you are hoping to accomplish

You are given

>   float f = 0.01f;
>   for (int i = 1; i < 100; i += 1, f += 0.01f) <== *B*

And want to vectorize into something like this

Vector4xfloat V_f = {0.01, 0.02, 0.03, 0.04};
For (int i=1; i<100; i+=4) {
                ...
                ...
                ...
                V_f += {0.01, 0.01, 0.01, 0.01};
}


If so, I don't see what all the fuss is about

--Peter Lawrence


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