1 files changed, 94 insertions, 0 deletions
diff --git a/lib/Basic/Targets/BPF.h b/lib/Basic/Targets/BPF.h
new file mode 100644
index 000000000000..4dd9cbd9d221
--- /dev/null
+++ b/lib/Basic/Targets/BPF.h
@@ -0,0 +1,94 @@
+//===--- BPF.h - Declare BPF target feature support -------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares BPF TargetInfo objects.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_BPF_H
+#define LLVM_CLANG_LIB_BASIC_TARGETS_BPF_H
+
+#include "clang/Basic/TargetInfo.h"
+#include "clang/Basic/TargetOptions.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/Support/Compiler.h"
+
+namespace clang {
+namespace targets {
+
+class LLVM_LIBRARY_VISIBILITY BPFTargetInfo : public TargetInfo {
+public:
+  BPFTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
+      : TargetInfo(Triple) {
+    LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
+    SizeType = UnsignedLong;
+    PtrDiffType = SignedLong;
+    IntPtrType = SignedLong;
+    IntMaxType = SignedLong;
+    Int64Type = SignedLong;
+    RegParmMax = 5;
+    if (Triple.getArch() == llvm::Triple::bpfeb) {
+      resetDataLayout("E-m:e-p:64:64-i64:64-n32:64-S128");
+    } else {
+      resetDataLayout("e-m:e-p:64:64-i64:64-n32:64-S128");
+    }
+    MaxAtomicPromoteWidth = 64;
+    MaxAtomicInlineWidth = 64;
+    TLSSupported = false;
+  }
+
+  void getTargetDefines(const LangOptions &Opts,
+                        MacroBuilder &Builder) const override;
+
+  bool hasFeature(StringRef Feature) const override { return Feature == "bpf"; }
+
+  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return None; }
+
+  const char *getClobbers() const override { return ""; }
+
+  BuiltinVaListKind getBuiltinVaListKind() const override {
+    return TargetInfo::VoidPtrBuiltinVaList;
+  }
+
+  ArrayRef<const char *> getGCCRegNames() const override { return None; }
+
+  bool validateAsmConstraint(const char *&Name,
+                             TargetInfo::ConstraintInfo &info) const override {
+    return true;
+  }
+
+  ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override {
+    return None;
+  }
+
+  CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
+    switch (CC) {
+    default:
+      return CCCR_Warning;
+    case CC_C:
+    case CC_OpenCLKernel:
+      return CCCR_OK;
+    }
+  }
+
+  bool isValidCPUName(StringRef Name) const override {
+    if (Name == "generic" || Name == "v1" ||
+        Name == "v2" || Name == "probe")
+      return true;
+    return false;
+  }
+
+  bool setCPU(const std::string &Name) override {
+    StringRef CPUName(Name);
+    return isValidCPUName(CPUName);
+  }
+};
+} // namespace targets
+} // namespace clang
+#endif // LLVM_CLANG_LIB_BASIC_TARGETS_BPF_H