[llvm-bugs] [Bug 50586] New: Poor OpenSSL performance (Clang 12 vs GCC 11)

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=50586

            Bug ID: 50586
           Summary: Poor OpenSSL performance (Clang 12 vs GCC 11)
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            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

Results
https://i.imgur.com/nSn6jHU.png


RSA 4096-bit performance of OpenSSL (Clang) is 54% worse than OpenSSL (GCC) on
Xeon Ice Lake.

Source:
https://www.phoronix.com/scan.php?page=article&item=clang12-gcc11-icelake&num=6

Benchmark is available here: https://openbenchmarking.org/test/pts/openssl

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