1 files changed, 164 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.cpp b/contrib/llvm-project/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.cpp
new file mode 100644
index 000000000000..7bb075c36e79
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.cpp
@@ -0,0 +1,164 @@
+//===-- AArch64BaseInfo.cpp - AArch64 Base encoding information------------===//
+//
+// 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 provides basic encoding and assembly information for AArch64.
+//
+//===----------------------------------------------------------------------===//
+#include "AArch64BaseInfo.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Support/Regex.h"
+
+using namespace llvm;
+
+namespace llvm {
+  namespace AArch64AT {
+#define GET_AT_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+
+namespace llvm {
+  namespace AArch64DB {
+#define GET_DB_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64DC {
+#define GET_DC_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64IC {
+#define GET_IC_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64ISB {
+#define GET_ISB_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64TSB {
+#define GET_TSB_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64PRCTX {
+#define GET_PRCTX_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64PRFM {
+#define GET_PRFM_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64SVEPRFM {
+#define GET_SVEPRFM_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64SVEPredPattern {
+#define GET_SVEPREDPAT_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64ExactFPImm {
+#define GET_EXACTFPIMM_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64PState {
+#define GET_PSTATE_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64PSBHint {
+#define GET_PSB_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64BTIHint {
+#define GET_BTI_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+namespace llvm {
+  namespace AArch64SysReg {
+#define GET_SYSREG_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}
+
+uint32_t AArch64SysReg::parseGenericRegister(StringRef Name) {
+  // Try to parse an S<op0>_<op1>_<Cn>_<Cm>_<op2> register name
+  Regex GenericRegPattern("^S([0-3])_([0-7])_C([0-9]|1[0-5])_C([0-9]|1[0-5])_([0-7])$");
+
+  std::string UpperName = Name.upper();
+  SmallVector<StringRef, 5> Ops;
+  if (!GenericRegPattern.match(UpperName, &Ops))
+    return -1;
+
+  uint32_t Op0 = 0, Op1 = 0, CRn = 0, CRm = 0, Op2 = 0;
+  uint32_t Bits;
+  Ops[1].getAsInteger(10, Op0);
+  Ops[2].getAsInteger(10, Op1);
+  Ops[3].getAsInteger(10, CRn);
+  Ops[4].getAsInteger(10, CRm);
+  Ops[5].getAsInteger(10, Op2);
+  Bits = (Op0 << 14) | (Op1 << 11) | (CRn << 7) | (CRm << 3) | Op2;
+
+  return Bits;
+}
+
+std::string AArch64SysReg::genericRegisterString(uint32_t Bits) {
+  assert(Bits < 0x10000);
+  uint32_t Op0 = (Bits >> 14) & 0x3;
+  uint32_t Op1 = (Bits >> 11) & 0x7;
+  uint32_t CRn = (Bits >> 7) & 0xf;
+  uint32_t CRm = (Bits >> 3) & 0xf;
+  uint32_t Op2 = Bits & 0x7;
+
+  return "S" + utostr(Op0) + "_" + utostr(Op1) + "_C" + utostr(CRn) + "_C" +
+         utostr(CRm) + "_" + utostr(Op2);
+}
+
+namespace llvm {
+  namespace AArch64TLBI {
+#define GET_TLBI_IMPL
+#include "AArch64GenSystemOperands.inc"
+  }
+}