https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32306
Bernd Schmidt <bernds at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |bernds at gcc dot gnu.org
--- Comment #29 from Bernd Schmidt <bernds at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #19)
> Shorter testcase, compilable and to the point. We are not able to CSE
> the b1 && ... && b8 sequence because we produce control-flow for it
> during gimplification.
>
> void bar (short *array,
> short b1, short b2, short b3, short b4,
> short b5, short b6, short b7, short b8)
> {
> array[0] = b1 && b2 && b3 && b4 && b5 && b6 && b7 && b8;
> array[1] = b1 && b2 && b3 && b4 && b5 && b6 && b7 && b8;
> }
This seems to be optimized as of 4.7, but the original testcase still needs
work. Maybe sccvn could be taught to recreate the conditionals?
