[Bug target/114676] [12/13/14 Regression] DSE removes assignment that is used later

[aleksei.nikiforov at linux dot ibm.com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114676

--- Comment #4 from Aleksei Nikiforov <aleksei.nikiforov at linux dot ibm.com> 
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Yes, it doesn't reproduce on x86_64, and previously getting rid of -O3 or using
-fno-tree-dse also helped.