[autovect] [patch] complete-unrolling pass before the vectorizer

Revital1 Eres ERES@il.ibm.com
Tue Mar 20 14:24:00 GMT 2007


> Do you have a test case that shows different code if you remove the
> pass_ccp before the pass_store_ccp?

The testcase is attached.  Complied with -O3 -ffast-math.  Looking at
the dumps with and without the CCP pass, it can be seen that this pass
is essential to clean the constants.

248c248
<   D.1621_251 = tmp2_18 * 6.4e+1;
---
>   D.1621_251 = tmp2_18 * c2_247;

Thanks,
Revital

(See attached file: test_ccp_pass.txt)
>
> Gr.
> Steven
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