[llvm-bugs] [Bug 35656] New: opt crashes with "opt -scev-aa -print-alias-sets -aa-eval"

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Dec 13 23:12:55 PST 2017


https://bugs.llvm.org/show_bug.cgi?id=35656

            Bug ID: 35656
           Summary: opt crashes with "opt -scev-aa  -print-alias-sets
                    -aa-eval"
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Global Analyses
          Assignee: unassignedbugs at nondot.org
          Reporter: cs12b1010 at iith.ac.in
                CC: llvm-bugs at lists.llvm.org

Created attachment 19544
  --> https://bugs.llvm.org/attachment.cgi?id=19544&action=edit
Minimal test case.

Opt crashes with:
opt -scev-aa  -print-alias-sets -aa-eval a.ll

However it does not crash with:
opt -basicaa -print-alias-sets -aa-eval a.ll
OR
opt -scev-aa -print-alias-sets a.ll
OR
opt -scev-aa -aa-eval a.ll

All three flags(-scev-aa, -print-alias-sets, -aa-eval) are necessary to
reproduce the bug.

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