https://bugs.llvm.org/show_bug.cgi?id=42940
Bug ID: 42940
Summary: [MemorySSA] Assertion failed: "Incorrect incoming
access into phi."
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Global Analyses
Assignee: unassignedb...@nondot.org
Reporter: pauls...@linux.vnet.ibm.com
CC: llvm-bugs@lists.llvm.org
Created attachment 22362
--> https://bugs.llvm.org/attachment.cgi?id=22362&action=edit
unreduced test case, opt input
opt -O3 -march=arch13 tc_incorr_inc_acc_into_phi.bc -o a.out
-enable-mssa-loop-dependency
opt -O3 -march=arch13 tc_incorr_inc_acc_into_phi.bc -o a.out
-enable-mssa-loop-dependency
opt: llvm/lib/Analysis/MemorySSA.cpp:1884: void
llvm::MemorySSA::verifyPrevDefInPhis(llvm::Function&) const: Assertion `LastAcc
== IncAcc && "Incorrect incoming access into phi."' failed.
...
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