[PATCH] D98884: [IR] Ignore bitcasts of function pointers which are only used as callees in callbase instruction

[David Spickett via Phabricator via llvm-commits]

DavidSpickett added a comment.

We've also seen failures on all of our 2 stage bots e.g. http://lab.llvm.org:8011/#/builders/7/builds/2348. Which are fixed now this is reverted.

  [494/5842] Building Attributes.inc...
  FAILED: include/llvm/IR/Attributes.inc 
  cd /home/tcwg-buildslave/worker/clang-cmake-aarch64-full/stage2 && /home/tcwg-buildslave/worker/clang-cmake-aarch64-full/stage2/bin/llvm-tblgen -gen-attrs -I /home/tcwg-buildslave/worker/clang-cmake-aarch64-full/llvm/llvm/include/llvm/IR -I/home/tcwg-buildslave/worker/clang-cmake-aarch64-full/stage2/include -I/home/tcwg-buildslave/worker/clang-cmake-aarch64-full/llvm/llvm/include /home/tcwg-buildslave/worker/clang-cmake-aarch64-full/llvm/llvm/include/llvm/IR/Attributes.td --write-if-changed -o include/llvm/IR/Attributes.inc -d include/llvm/IR/Attributes.inc.d
  pure virtual method called
  terminate called without an active exception

Bisecting this I have seen clang-tblgen crash with a few different asserts. Bad alloc, one in erase() in StringMap, illegal instruction. Our bot doesn't have sanitizers on so it could be the same finicky memory corruption.

This PPC one does though https://lab.llvm.org/buildbot/#/builders/18/builds/1140 and saw similar failures. No immediate explanation but some configs worth checking locally before the reland.


Repository:
  rG LLVM Github Monorepo

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