[Bug tree-optimization/79824] [7 Regression] Failure to peel for gaps leads to read beyond mapped memory
rsandifo at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Apr 25 17:49:00 GMT 2017
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79824
rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #5 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
I don't think the patch is enough for load-lanes. E.g. suppose we're loading 3
vectors of 8x16 bytes. A gap of 3 meets the new test but an ld3 would still
load beyond the end of the original loop.
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