[llvm-bugs] [Bug 48050] New: [X86] Use GFNI for some simple vXi8 ops like LZCNT/LSCNT/TZCNT/BSR

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48050

            Bug ID: 48050
           Summary: [X86] Use GFNI for some simple vXi8 ops like
                    LZCNT/LSCNT/TZCNT/BSR
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: craig.topper at gmail.com, llvm-bugs at lists.llvm.org,
                    llvm-dev at redking.me.uk, pengfei.wang at intel.com,
                    spatel+llvm at rotateright.com

As detailed on
https://gist.github.com/animetosho/6cb732ccb5ecd86675ca0a442b3c0622

GFNI can be used to lower various vXi8 ops (LZCNT/LSCNT/TZCNT/BSR etc.).

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