[Bug tree-optimization/90213] UBSAN: signed integer overflow: -5621332293356458048 * 8 cannot be represented in type 'long int'
rguenth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Apr 24 12:22:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90213
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-04-24
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The code even says
/* TODO: This code seems wrong, multiply then check
to see if it fits. */
offset *= tree_to_uhwi (unit_size);
offset *= BITS_PER_UNIT;
it might be as simple as moving the multiplication above the to_shwi
check.
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