Revert r329156 "Add llvm-exegesis tool."

Breaks a bunch of bots.

llvm-svn: 329157

1 files changed, 0 insertions, 38 deletions

diff --git a/llvm/tools/llvm-exegesis/lib/X86.cpp b/llvm/tools/llvm-exegesis/lib/X86.cpp
deleted file mode 100644
index c9afece4a9f..00000000000
--- a/llvm/tools/llvm-exegesis/lib/X86.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//===-- X86.cpp --------------------------------------------------*- C++-*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "X86.h"
-
-namespace exegesis {
-
-static llvm::Error makeError(llvm::Twine Msg) {
-  return llvm::make_error<llvm::StringError>(Msg,
-                                             llvm::inconvertibleErrorCode());
-}
-
-X86Filter::~X86Filter() = default;
-
-// Test whether we can generate a snippet for this instruction.
-llvm::Error X86Filter::shouldRun(const LLVMState &State,
-                                 const unsigned Opcode) const {
-  const auto &InstrInfo = State.getInstrInfo();
-  const llvm::MCInstrDesc &InstrDesc = InstrInfo.get(Opcode);
-  if (InstrDesc.isBranch() || InstrDesc.isIndirectBranch())
-    return makeError("Unsupported opcode: isBranch/isIndirectBranch");
-  if (InstrDesc.isCall() || InstrDesc.isReturn())
-    return makeError("Unsupported opcode: isCall/isReturn");
-  const auto OpcodeName = InstrInfo.getName(Opcode);
-  if (OpcodeName.startswith("POPF") || OpcodeName.startswith("PUSHF") ||
-      OpcodeName.startswith("ADJCALLSTACK")) {
-    return makeError("Unsupported opcode: Push/Pop/AdjCallStack");
-  }
-  return llvm::ErrorSuccess();
-}
-
-} // namespace exegesis