[PATCH] D120329: [SelectionDAG] Emit calls to __divei4 and friends for division/remainder of large integers

[Matthias Gehre via Phabricator via llvm-commits]

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Emit calls to __divei4 and friends for divison/remainder of large integers.

This fixes https://github.com/llvm/llvm-project/issues/44994.

The overall RFC is in https://discourse.llvm.org/t/rfc-add-support-for-division-of-large-bitint-builtins-selectiondag-globalisel-clang/60329

The compiler-rt part is in https://reviews.llvm.org/D120327


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D120329

Files:
  llvm/include/llvm/IR/RuntimeLibcalls.def
  llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
  llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
  llvm/test/CodeGen/X86/udivmodei5.ll

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