[PATCH] D53458: [X86] Add support for more than 32 features for __builtin_cpu_is

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: erichkeane, echristo.

libgcc now 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.


https://reviews.llvm.org/D53458

Files:
  lib/CodeGen/CGBuiltin.cpp
  lib/CodeGen/CodeGenFunction.h
  test/CodeGen/builtin-cpu-supports.c
  test/CodeGen/target-builtin-noerror.c

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