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Add a flag to disable emitting the custom event instrumentation points #36274

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llvmbot opened this issue Mar 28, 2018 · 1 comment
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bugzilla Issues migrated from bugzilla xray

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llvmbot commented Mar 28, 2018

Bugzilla Link 36926
Resolution FIXED
Resolved on Apr 12, 2018 19:36
Version unspecified
OS Linux
Reporter LLVM Bugzilla Contributor

Extended Description

This allows us to control whether or not we want to emit the custom event instrumentation points. We want this for the following reasons:

  • The instrumentation points are not supported in all platforms yet. We can set the default for these flags differently for different targets/front-ends.
  • The instrumentation points are currently expensive in terms of impact in code size as well as runtime overheads.
  • Provide more controls of the XRay instrumentation features we're providing at compile-time to allow users to make trade-offs on which kinds of sleds should be emitted (as we add more instrumentation point types in the future).
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llvmbot commented Apr 13, 2018

Fixed by r329985.

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 10, 2021
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