[PATCH] D157420: [clang] Enable constexpr on LZCNT/POPCNT MS extension intrinsics

[Alejandro Aguirre via Phabricator via cfe-commits]

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This enables us to use __lzcnt / __popcnt intrinsics inside constexpr code.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D157420

Files:
  clang/include/clang/Basic/Builtins.def
  clang/lib/AST/ExprConstant.cpp
  clang/test/CodeGen/ms-intrinsics-other.c

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