[Bug tree-optimization/128575] [14/15/16 Regression] dse_optimize_redundant_stores omits gimple_has_volatile_ops(use_stmt) and deletes subsequent volatile zeroing stores (*(volatile T *)p = 0) when preceded by a zero store to the same address

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128575

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |17.0, 9.5.0
           Priority|P3                          |P2
      Known to fail|                            |10.1.0, 13.5.0
            Summary|dse_optimize_redundant_stor |[14/15/16 Regression]
                   |es omits                    |dse_optimize_redundant_stor
                   |gimple_has_volatile_ops(use |es omits
                   |_stmt) and deletes          |gimple_has_volatile_ops(use
                   |subsequent volatile zeroing |_stmt) and deletes
                   |stores (*(volatile T *)p =  |subsequent volatile zeroing
                   |0) when preceded by a zero  |stores (*(volatile T *)p =
                   |store to the same address   |0) when preceded by a zero
                   |                            |store to the same address
   Target Milestone|---                         |14.5

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
r10-1362-g3fe0ddc88334f9