[llvm-bugs] [Bug 31519] New: [AArch64] bitreverse does not generate rbit

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31519

            Bug ID: 31519
           Summary: [AArch64] bitreverse does not generate rbit
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: AArch64
          Assignee: unassignedbugs at nondot.org
          Reporter: bagel99 at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 17801
  --> https://llvm.org/bugs/attachment.cgi?id=17801&action=edit
Test case for bitreverse

The intrinsic llvm.bitreverse.iN does not generate the rbit instruction.  Test
attached.

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