[llvm-bugs] [Bug 40754] New: [MemSSA loop-dep] Assertion "Memory Def does not dominate it's uses"' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40754

            Bug ID: 40754
           Summary: [MemSSA loop-dep] Assertion "Memory Def does not
                    dominate it's uses"' failed.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: paulsson at linux.vnet.ibm.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 21486
  --> https://bugs.llvm.org/attachment.cgi?id=21486&action=edit
reduced testcase

opt -mtriple=systemz-unknown -mcpu=z13 tc_mssa_memdef_dom.ll -O3 -S -o
out.opt.ll -enable-mssa-loop-dependency

lib/Analysis/MemorySSA.cpp:1912: void
llvm::MemorySSA::verifyDomination(llvm::Function&) const: Assertion
`dominates(MD, U) && "Memory Def does not dominate it's uses"' failed.

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