Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 173 insertions, 0 deletions

diff --git a/gnu/llvm/clang/lib/Basic/Targets/Hexagon.cpp b/gnu/llvm/clang/lib/Basic/Targets/Hexagon.cpp
new file mode 100644
index 00000000000..fcb94b93d69
--- /dev/null
+++ b/gnu/llvm/clang/lib/Basic/Targets/Hexagon.cpp
@@ -0,0 +1,173 @@
+//===--- Hexagon.cpp - Implement Hexagon target feature support -----------===//
+//
+// 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 Hexagon TargetInfo objects.
+//
+//===----------------------------------------------------------------------===//
+
+#include "Hexagon.h"
+#include "Targets.h"
+#include "clang/Basic/MacroBuilder.h"
+#include "clang/Basic/TargetBuiltins.h"
+#include "llvm/ADT/StringSwitch.h"
+
+using namespace clang;
+using namespace clang::targets;
+
+void HexagonTargetInfo::getTargetDefines(const LangOptions &Opts,
+                                         MacroBuilder &Builder) const {
+  Builder.defineMacro("__qdsp6__", "1");
+  Builder.defineMacro("__hexagon__", "1");
+
+  if (CPU == "hexagonv5") {
+    Builder.defineMacro("__HEXAGON_V5__");
+    Builder.defineMacro("__HEXAGON_ARCH__", "5");
+    if (Opts.HexagonQdsp6Compat) {
+      Builder.defineMacro("__QDSP6_V5__");
+      Builder.defineMacro("__QDSP6_ARCH__", "5");
+    }
+  } else if (CPU == "hexagonv55") {
+    Builder.defineMacro("__HEXAGON_V55__");
+    Builder.defineMacro("__HEXAGON_ARCH__", "55");
+    Builder.defineMacro("__QDSP6_V55__");
+    Builder.defineMacro("__QDSP6_ARCH__", "55");
+  } else if (CPU == "hexagonv60") {
+    Builder.defineMacro("__HEXAGON_V60__");
+    Builder.defineMacro("__HEXAGON_ARCH__", "60");
+    Builder.defineMacro("__QDSP6_V60__");
+    Builder.defineMacro("__QDSP6_ARCH__", "60");
+  } else if (CPU == "hexagonv62") {
+    Builder.defineMacro("__HEXAGON_V62__");
+    Builder.defineMacro("__HEXAGON_ARCH__", "62");
+  } else if (CPU == "hexagonv65") {
+    Builder.defineMacro("__HEXAGON_V65__");
+    Builder.defineMacro("__HEXAGON_ARCH__", "65");
+  } else if (CPU == "hexagonv66") {
+    Builder.defineMacro("__HEXAGON_V66__");
+    Builder.defineMacro("__HEXAGON_ARCH__", "66");
+  }
+
+  if (hasFeature("hvx-length64b")) {
+    Builder.defineMacro("__HVX__");
+    Builder.defineMacro("__HVX_ARCH__", HVXVersion);
+    Builder.defineMacro("__HVX_LENGTH__", "64");
+  }
+
+  if (hasFeature("hvx-length128b")) {
+    Builder.defineMacro("__HVX__");
+    Builder.defineMacro("__HVX_ARCH__", HVXVersion);
+    Builder.defineMacro("__HVX_LENGTH__", "128");
+    // FIXME: This macro is deprecated.
+    Builder.defineMacro("__HVXDBL__");
+  }
+}
+
+bool HexagonTargetInfo::initFeatureMap(
+    llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
+    const std::vector<std::string> &FeaturesVec) const {
+  Features["long-calls"] = false;
+
+  return TargetInfo::initFeatureMap(Features, Diags, CPU, FeaturesVec);
+}
+
+bool HexagonTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
+                                             DiagnosticsEngine &Diags) {
+  for (auto &F : Features) {
+    if (F == "+hvx-length64b")
+      HasHVX = HasHVX64B = true;
+    else if (F == "+hvx-length128b")
+      HasHVX = HasHVX128B = true;
+    else if (F.find("+hvxv") != std::string::npos) {
+      HasHVX = true;
+      HVXVersion = F.substr(std::string("+hvxv").length());
+    } else if (F == "-hvx")
+      HasHVX = HasHVX64B = HasHVX128B = false;
+    else if (F == "+long-calls")
+      UseLongCalls = true;
+    else if (F == "-long-calls")
+      UseLongCalls = false;
+  }
+  return true;
+}
+
+const char *const HexagonTargetInfo::GCCRegNames[] = {
+    "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",  "r8",
+    "r9",  "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17",
+    "r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26",
+    "r27", "r28", "r29", "r30", "r31", "p0",  "p1",  "p2",  "p3",
+    "sa0", "lc0", "sa1", "lc1", "m0",  "m1",  "usr", "ugp",
+    "r1:0", "r3:2", "r5:4", "r7:6", "r9:8", "r11:10", "r13:12", "r15:14",
+    "r17:16", "r19:18", "r21:20", "r23:22", "r25:24", "r27:26", "r29:28",
+    "r31:30"
+};
+
+ArrayRef<const char *> HexagonTargetInfo::getGCCRegNames() const {
+  return llvm::makeArrayRef(GCCRegNames);
+}
+
+const TargetInfo::GCCRegAlias HexagonTargetInfo::GCCRegAliases[] = {
+    {{"sp"}, "r29"},
+    {{"fp"}, "r30"},
+    {{"lr"}, "r31"},
+};
+
+ArrayRef<TargetInfo::GCCRegAlias> HexagonTargetInfo::getGCCRegAliases() const {
+  return llvm::makeArrayRef(GCCRegAliases);
+}
+
+const Builtin::Info HexagonTargetInfo::BuiltinInfo[] = {
+#define BUILTIN(ID, TYPE, ATTRS)                                               \
+  {#ID, TYPE, ATTRS, nullptr, ALL_LANGUAGES, nullptr},
+#define LIBBUILTIN(ID, TYPE, ATTRS, HEADER)                                    \
+  {#ID, TYPE, ATTRS, HEADER, ALL_LANGUAGES, nullptr},
+#include "clang/Basic/BuiltinsHexagon.def"
+};
+
+bool HexagonTargetInfo::hasFeature(StringRef Feature) const {
+  std::string VS = "hvxv" + HVXVersion;
+  if (Feature == VS)
+    return true;
+
+  return llvm::StringSwitch<bool>(Feature)
+      .Case("hexagon", true)
+      .Case("hvx", HasHVX)
+      .Case("hvx-length64b", HasHVX64B)
+      .Case("hvx-length128b", HasHVX128B)
+      .Case("long-calls", UseLongCalls)
+      .Default(false);
+}
+
+struct CPUSuffix {
+  llvm::StringLiteral Name;
+  llvm::StringLiteral Suffix;
+};
+
+static constexpr CPUSuffix Suffixes[] = {
+    {{"hexagonv5"},  {"5"}},  {{"hexagonv55"}, {"55"}},
+    {{"hexagonv60"}, {"60"}}, {{"hexagonv62"}, {"62"}},
+    {{"hexagonv65"}, {"65"}}, {{"hexagonv66"}, {"66"}},
+};
+
+const char *HexagonTargetInfo::getHexagonCPUSuffix(StringRef Name) {
+  const CPUSuffix *Item = llvm::find_if(
+      Suffixes, [Name](const CPUSuffix &S) { return S.Name == Name; });
+  if (Item == std::end(Suffixes))
+    return nullptr;
+  return Item->Suffix.data();
+}
+
+void HexagonTargetInfo::fillValidCPUList(
+    SmallVectorImpl<StringRef> &Values) const {
+  for (const CPUSuffix &Suffix : Suffixes)
+    Values.push_back(Suffix.Name);
+}
+
+ArrayRef<Builtin::Info> HexagonTargetInfo::getTargetBuiltins() const {
+  return llvm::makeArrayRef(BuiltinInfo, clang::Hexagon::LastTSBuiltin -
+                                             Builtin::FirstTSBuiltin);
+}