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Mirror of https://github.com/RPCS3/llvm-mirror
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Root node in ProfiledCallGraph. In ProfiledCallGraph::addProfiledFunction, to add a function symbol into the ProfiledCallGraph, currently an uninitialized ProfiledCallGraphNode node is created by ProfiledFunctions[Name] and inserted into Callees set of Root node before the node is initialized. The Callees set use ProfiledCallGraphNodeComparer as its comparator so the uninitialized ProfiledCallGraphNode may fail to be inserted into Callees set if it happens to contain a name in memory which has been inserted into the Callees set before. The problem will prevent some function symbols from being annotated with profiles and cause performance regression. The patch fixes the problem. Differential Revision: https://reviews.llvm.org/D101815 |
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