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Re: Some thoughts about steerring commitee work

H. J. Lu wrote:

> Why don't we turn on vectorizer at -O3 or even -O2, depending on
> ISA? I added -ftree-vectorize to BOOT_CFLAGS on x86-64. According to
> -ftree-vectorizer-verbose=1, there are 82 loops vectorized in
> gcc source. There are no regressions. There are not much changes
> in bootstrap time as well as "make check" time.

We have about two dozen cases of packages that break when
-ftree-vectorize is used.  I'm sure there are several more as we tend to
discourage such bug reports.

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