https://bugs.kde.org/show_bug.cgi?id=413547

            Bug ID: 413547
           Summary: regression test does not check for Arm 64 features
           Product: valgrind
           Version: 3.14.0
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: jsew...@acm.org
          Reporter: assad.has...@linaro.org
  Target Milestone: ---

SUMMARY
Writing a test which relies on specific Arm 64 v8.x CPU feature(s) will fail if
the .vgtest file cannot run tests/arm64_features to establish feature
availability.

STEPS TO REPRODUCE
1. Write a test which uses v8.2 half precision ops
2. Add 'test -x  my_fp16_arithmetic_tests && ../../../tests/arm64_features
fphp'
3. Run 'make regtest'.

OBSERVED RESULT
-- Running  tests in none/tests/arm64 ----------------------------------
/bin/sh: ../../../tests/arm64_features: No such file or directory
prereq returned 127: test -x my_fp16_arithmetic_tests &&
../../../tests/arm64_features fphp

EXPECTED RESULT
The prerequisite should successfully call ../../../tests/arm64_features in
order to run the test.

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