[llvm-bugs] [Bug 36808] New: [X86] PMULLD latency wrong in skylake scheduler model

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=36808

            Bug ID: 36808
           Summary: [X86] PMULLD latency wrong in skylake scheduler model
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: craig.topper at gmail.com
                CC: llvm-bugs at lists.llvm.org

skylake client and server scheduler models show a latency of 8.
Haswell/Broadwell have 10. Agner's tables, Intel® Xeon® Scalable Processor
throughput latency doc, and the llvm-exegesis data show 10 for skylake.

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