[llvm-bugs] [Bug 34284] New: __builtin_cpu_supports does not work on ARM

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Aug 22 13:04:43 PDT 2017


            Bug ID: 34284
           Summary: __builtin_cpu_supports does not work on ARM
           Product: compiler-rt
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: gonzalobg88 at gmail.com
                CC: llvm-bugs at lists.llvm.org

I'd like to be able to detect whether an ARM CPU supports Neon vector
instructions using __builtin_cpu_supports("neon") or similar but it seems that
compiler-rt only supports x86_64.

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