Hi Hakan,
On Sat, Nov 7, 2015 at 12:11 PM, Hakan Ardo <ha...@debian.org> wrote:
> Also maybe for an opaque pointer to an array that was pointing some instance
> in the first iteration?
Yes, anything dereferencing a pointer basically---during optimization.
It should only matter for Consts.
I realized it is annoying: in theory, we can try to unroll this loop:
[i0, i1]
i2 = int_gt(i1, 0)
guard_true(i2) []
i4 = getarrayitem_raw_pure_i(i0, 0, descr=rawarraydescr)
i3 = int_sub(i1, 1)
jump(12345, i3)
The "12345" is a nonsensical constant raw pointer. Again, this only
makes sense if it is called with i1 = 0 or 1, but unrolling will
really try to perform the getarrayitem_raw_pure(12345, 0) during
optimization.
More thoughts needed.
A bientôt,
Armin.
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