[PATCH] D107872: [SimplifyLibCalls] propagate tail/musttail/notail flags on CallInsts

[Nick Desaulniers via Phabricator via llvm-commits]

nickdesaulniers added inline comments.


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Comment at: llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp:2427-2429
+  // Must tail has invariants like trying not to refer to the callers stack
+  // frame via allocas. At the risk of LibCallSimplifier::optimizeCall()
+  // inserting such allocas, just skip libcall optimizing must tail calls.
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There's probably a better way to express/word this. @efriedma please let me know what to replace here.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107872/new/

https://reviews.llvm.org/D107872