[llvm-bugs] [Bug 51487] New: Using "-msve-vector-bits=512" to build GROMACS on AArch64/SVE causes infinite compilation.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=51487

            Bug ID: 51487
           Summary: Using "-msve-vector-bits=512" to build GROMACS on
                    AArch64/SVE causes infinite compilation.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: Common Code Generator Code
          Assignee: unassignedbugs at nondot.org
          Reporter: Paul.Walker at arm.com
                CC: llvm-bugs at lists.llvm.org
            Blocks: 51236

As described in https://reviews.llvm.org/rG01b846674d27 this patch triggers a
broken DAGCombine that results in a failure to build GROMACS when using
"-msve-vector-bits=512".  The fix D108086 has landed on main, but the
release/13.x branch is also
affected.


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=51236
[Bug 51236] [meta] 13.0.0 Release Blockers
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