[PATCH] D32274: [XRay] Detect loops in functions being lowered

[Reid Kleckner via Phabricator via llvm-commits]

rnk accepted this revision.
rnk added a comment.
This revision is now accepted and ready to land.

Looks good with a small suggestion



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Comment at: lib/CodeGen/XRayInstrumentation.cpp:40
+    AU.addRequired<MachineLoopInfo>();
+    AU.addPreserved<MachineLoopInfo>();
+    MachineFunctionPass::getAnalysisUsage(AU);
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This pass at least preserves MachineDomTree, so let's add that too. It seems consistent with other MI passes.


https://reviews.llvm.org/D32274