[llvm-bugs] [Bug 46929] New: SPEC2017 x264 optimisations

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=46929

            Bug ID: 46929
           Summary: SPEC2017 x264 optimisations
           Product: tools
           Version: trunk
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: opt
          Assignee: unassignedbugs at nondot.org
          Reporter: joel.hutton at arm.com
                CC: llvm-bugs at lists.llvm.org
        Depends on: 46888, 46890, 46902

This is a ticket to group together several possible x264 optimisations.


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=46888
[Bug 46888] AArch64 unneccessary widening lowers vector performance
https://bugs.llvm.org/show_bug.cgi?id=46890
[Bug 46890] -basic-aa-recphi=false prevents moving loads out of loop
https://bugs.llvm.org/show_bug.cgi?id=46902
[Bug 46902] Accessing element of struct prevents vectorization
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