AArch64/ARM64: remove AArch64 from tree prior to renaming ARM64.

I'm doing this in two phases for a better "git blame" record. This
commit removes the previous AArch64 backend and redirects all
functionality to ARM64. It also deduplicates test-lines and removes
orphaned AArch64 tests.

The next step will be "git mv ARM64 AArch64" and rewire most of the
tests.

Hopefully LLVM is still functional, though it would be even better if
no-one ever had to care because the rename happens straight
afterwards.

llvm-svn: 209576

1 files changed, 0 insertions, 99 deletions

diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
deleted file mode 100644
index f88c899cc9c..00000000000
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ /dev/null
@@ -1,99 +0,0 @@
-//===-- AArch64Subtarget.cpp - AArch64 Subtarget Information --------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the AArch64 specific subclass of TargetSubtargetInfo.
-//
-//===----------------------------------------------------------------------===//
-
-#include "AArch64Subtarget.h"
-#include "AArch64RegisterInfo.h"
-#include "MCTargetDesc/AArch64MCTargetDesc.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/IR/GlobalValue.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Target/TargetSubtargetInfo.h"
-
-using namespace llvm;
-
-#define DEBUG_TYPE "aarch64-subtarget"
-
-#define GET_SUBTARGETINFO_TARGET_DESC
-#define GET_SUBTARGETINFO_CTOR
-#include "AArch64GenSubtargetInfo.inc"
-
-enum AlignMode {
-  DefaultAlign,
-  StrictAlign,
-  NoStrictAlign
-};
-
-static cl::opt<AlignMode>
-Align(cl::desc("Load/store alignment support"),
-      cl::Hidden, cl::init(DefaultAlign),
-      cl::values(
-          clEnumValN(DefaultAlign,  "aarch64-default-align",
-                     "Generate unaligned accesses only on hardware/OS "
-                     "combinations that are known to support them"),
-          clEnumValN(StrictAlign,   "aarch64-strict-align",
-                     "Disallow all unaligned memory accesses"),
-          clEnumValN(NoStrictAlign, "aarch64-no-strict-align",
-                     "Allow unaligned memory accesses"),
-          clEnumValEnd));
-
-// Pin the vtable to this file.
-void AArch64Subtarget::anchor() {}
-
-AArch64Subtarget::AArch64Subtarget(StringRef TT, StringRef CPU, StringRef FS,
-                                   bool LittleEndian)
-    : AArch64GenSubtargetInfo(TT, CPU, FS), ARMProcFamily(Others),
-      HasFPARMv8(false), HasNEON(false), HasCrypto(false), TargetTriple(TT),
-      CPUString(CPU), IsLittleEndian(LittleEndian) {
-
-  initializeSubtargetFeatures(CPU, FS);
-}
-
-void AArch64Subtarget::initializeSubtargetFeatures(StringRef CPU,
-                                                   StringRef FS) {
-  AllowsUnalignedMem = false;
-
-  if (CPU.empty())
-    CPUString = "generic";
-
-  std::string FullFS = FS;
-  if (CPUString == "generic") {
-    // Enable FP by default.
-    if (FullFS.empty())
-      FullFS = "+fp-armv8";
-    else
-      FullFS = "+fp-armv8," + FullFS;
-  }
-
-  ParseSubtargetFeatures(CPU, FullFS);
-
-  switch (Align) {
-    case DefaultAlign:
-      // Linux targets support unaligned accesses on AARCH64
-      AllowsUnalignedMem = isTargetLinux();
-      break;
-    case StrictAlign:
-      AllowsUnalignedMem = false;
-      break;
-    case NoStrictAlign:
-      AllowsUnalignedMem = true;
-      break;
-  }
-}
-
-bool AArch64Subtarget::GVIsIndirectSymbol(const GlobalValue *GV,
-                                          Reloc::Model RelocM) const {
-  if (RelocM == Reloc::Static)
-    return false;
-
-  return !GV->hasLocalLinkage() && !GV->hasHiddenVisibility();
-}