[llvm-bugs] [Bug 52271] New: Efficiently searching an array - ICC outperforms LLVM

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Oct 23 09:02:03 PDT 2021


            Bug ID: 52271
           Summary: Efficiently searching an array - ICC outperforms LLVM
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: david.bolvansky at gmail.com
                CC: llvm-bugs at lists.llvm.org


ICC is smarter here and uses SIMD instructions.

Maybe LoopIdiom should recognize "memchr" like pattern here?

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