30 // information from the indexing step for all contexts (especially for testing),
33     "memprof-keep-all-not-cold-contexts", cl::init(false), cl::Hidden,
34     cl::desc("Keep all non-cold contexts (increases cloning overheads)"));
40 // Discard non-cold contexts if they overlap with much larger cold contexts,
41 // specifically, if all contexts reaching a given callsite are at least this
43 // to expose the cold contexts when they greatly dominate non-cold contexts.
47              "contexts"));
49 // Enable saving context size information for largest cold contexts, which can
50 // be used to flag contexts for more aggressive cloning and reporting.
211       // requested identification of contexts above a percentage of the max, see  in createMIBNode()
251 // on options that enable filtering out some NotCold contexts.
285   // discard all non-cold contexts so do not need any of the later pruning  in saveFilteredNewMIBNodes()
286   // handling. We can simply copy over all the cold contexts and return early.  in saveFilteredNewMIBNodes()
291           // Only append cold contexts.  in saveFilteredNewMIBNodes()
308   // Prune unneeded NotCold contexts, taking advantage of the fact  in saveFilteredNewMIBNodes()
309   // that we later will only clone Cold contexts, as NotCold is the allocation  in saveFilteredNewMIBNodes()
310   // default. We only need to keep as metadata the NotCold contexts that  in saveFilteredNewMIBNodes()
312   // need to clone. For example, assume we add the following contexts to the  in saveFilteredNewMIBNodes()
325   // It is sufficient to prune all but one not-cold contexts (either 1,2,5 or  in saveFilteredNewMIBNodes()
330   // contexts kept for a deeper caller, which will have a context length larger  in saveFilteredNewMIBNodes()
348   // longer overlapping contexts;  in saveFilteredNewMIBNodes()
352     // Only keep cold contexts and first (longest non-cold context).  in saveFilteredNewMIBNodes()
356       // Keep any already kept for longer contexts.  in saveFilteredNewMIBNodes()
360       // were no longer contexts.  in saveFilteredNewMIBNodes()
375 // Recursive helper to trim contexts and create metadata nodes.
395   // We don't have a single allocation for all the contexts sharing this prefix,  in buildMIBNodes()
435   // contexts with different allocation types being merged. In that case, we  in buildMIBNodes()
481   // If there were any hot allocation contexts, the Alloc trie node would have  in buildAndAttachMIBMetadata()
483   // contexts, they should be converted to NotCold. This happens in the cloning  in buildAndAttachMIBMetadata()
551   // leaf contexts. For now, keep the first one.  in getMergedMemProfMetadata()
559   // carrying multiple contexts. For now, keep the first one.  in getMergedCallsiteMetadata()