[Bug tree-optimization/81588] [7/8 Regression] Wrong code at -O2

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81588

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #41860|0                           |1
        is obsolete|                            |

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 41872
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41872&action=edit
gcc8-pr81588.patch

Untested fix - second attempt.