[llvm-bugs] [Bug 31698] New: NewGVN fails to do store to load forwarding

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31698

            Bug ID: 31698
           Summary: NewGVN fails to do store to load forwarding
           Product: libraries
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: bigcheesegs at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 17868
  --> https://llvm.org/bugs/attachment.cgi?id=17868&action=edit
IR

For the attached code, opt -gvn optimizes to one load and one store. -newgvn
optimizes to two loads and one store. It fails to do the store to load
forwarding.

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