[PATCH] D27855: [InstCombine] try to extend nonnull-ness of arguments from a callsite back to its parent function

[David Majnemer via Phabricator via llvm-commits]

majnemer added inline comments.


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Comment at: lib/Transforms/InstCombine/InstCombineCalls.cpp:2779-2820
+/// If a callsite has arguments that are also arguments to the parent function,
+/// try to propagate attributes from the callsite's arguments to the parent's
+/// arguments.
+static Instruction *extendArgAttrsToCaller(CallSite &CS, DominatorTree &DT) {
+  // Make sure that this callsite is part of a function.
+  BasicBlock *BB = CS.getParent();
+  if (!BB)
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Any chance this logic could live in `llvm::isKnownNonNullAt`


https://reviews.llvm.org/D27855