vendor/llvm/llvm-trunk-r375505vendor/llvm

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/MCA/CodeEmitter.cpp b/lib/MCA/CodeEmitter.cpp
new file mode 100644
index 000000000000..294107219cb0
--- /dev/null
+++ b/lib/MCA/CodeEmitter.cpp
@@ -0,0 +1,37 @@
+//===--------------------- CodeEmitter.cpp ----------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the CodeEmitter API.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MCA/CodeEmitter.h"
+
+namespace llvm {
+namespace mca {
+
+CodeEmitter::EncodingInfo
+CodeEmitter::getOrCreateEncodingInfo(unsigned MCID) {
+  EncodingInfo &EI = Encodings[MCID];
+  if (EI.second)
+    return EI;
+
+  SmallVector<llvm::MCFixup, 2> Fixups;
+  const MCInst &Inst = Sequence[MCID];
+  MCInst Relaxed(Sequence[MCID]);
+  if (MAB.mayNeedRelaxation(Inst, STI))
+    MAB.relaxInstruction(Inst, STI, Relaxed);
+
+  EI.first = Code.size();
+  MCE.encodeInstruction(Relaxed, VecOS, Fixups, STI);
+  EI.second = Code.size() - EI.first;
+  return EI;
+}
+
+} // namespace mca
+} // namespace llvm