[X86] Add support for more than 32 features for __builtin_cpu_is
libgcc supports more than 32 features by adding a new 32-bit variable __cpu_features2.
This adds the clang support for checking these feature bits.
Patches for compiler-rt and llvm to support this are coming as well.
Probably still need an additional patch for target multiversioning in clang.
Differential Revision: https://reviews.llvm.org/D53458
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@344832 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed
