[PATCH] D25264: Implement MS _BitScan intrinsics

[Albert Gutowski via cfe-commits]

agutowski updated this revision to Diff 73685.
agutowski added a comment.

make _BitScan intrinsics compatible with Intel specification when the mask is zero


https://reviews.llvm.org/D25264

Files:
  include/clang/Basic/BuiltinsARM.def
  include/clang/Basic/BuiltinsX86.def
  include/clang/Basic/BuiltinsX86_64.def
  lib/Basic/Targets.cpp
  lib/CodeGen/CGBuiltin.cpp
  lib/CodeGen/CodeGenFunction.h
  lib/Headers/intrin.h
  test/CodeGen/ms-intrinsics.c

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