[llvm-bugs] [Bug 50349] New: Create VOP3 encoding of V_READFIRSTLANE_B32

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https://bugs.llvm.org/show_bug.cgi?id=50349

            Bug ID: 50349
           Summary: Create VOP3 encoding of V_READFIRSTLANE_B32
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: AMDGPU
          Assignee: unassignedbugs at nondot.org
          Reporter: joseph.nash at amd.com
                CC: llvm-bugs at lists.llvm.org

There is a TODO comment to do this enhancement as well in the tree. 

V_READFIRSTLANE_B32 currently only has a VOP1 encoding, but the hardware also
supports a VOP3 encoding. Refactoring the definition of the instruction to use
a VOP_Profile as most instructions do would make it easier to create a VOP3
encoding. 

Approximate line of definition, VOP1Instructions.td:182

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