Created attachment 8792662 [details] Screen shot of FF devtools profiler flame chart The MDN page describing Firefox Devtools' profiler's flame chart display doesn't explain the meaning of the purple "JIT" blocks. There is no hover text that explains what they do either. The attached screen shot shows several instances of what I'm talking about. I've put the URL for the MDN page in question in the bugzilla "URL" field.
Do we know if this was added with the JIT coach work? I'm going to set this bug to blocking the JIT view anyway.
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