[llvm-bugs] [Bug 37203] New: PHI node has multiple entries for the same basic block with different incoming values!

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=37203

            Bug ID: 37203
           Summary: PHI node has multiple entries for the same basic block
                    with different incoming values!
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: mikael.holmen at ericsson.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 20209
  --> https://bugs.llvm.org/attachment.cgi?id=20209&action=edit
reproducer

Reproduce with:
 opt -S -sroa tr15912.ll -o -</pre>

which gives

 PHI node has multiple entries for the same basic block with different incoming
values!
   %g.0.sroa.speculated = phi i16 [ %g.0.sroa.speculate.load.cleanup, %cleanup
], [ %g.0.sroa.speculate.load.cleanup1, %cleanup ], [ undef, %if.else ]
 label %cleanup
   %g.0.sroa.speculate.load.cleanup1 = load i16, i16* @a, align 1
   %g.0.sroa.speculate.load.cleanup = load i16, i16* @a, align 1
 LLVM ERROR: Broken function found, compilation aborted!

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