1 files changed, 132 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets/SPIR.h b/clang/lib/Basic/Targets/SPIR.h
new file mode 100644
index 000000000000..802ccf8b671e
--- /dev/null
+++ b/clang/lib/Basic/Targets/SPIR.h
@@ -0,0 +1,132 @@
+//===--- SPIR.h - Declare SPIR target feature support -----------*- 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 declares SPIR TargetInfo objects.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H
+#define LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_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 {
+
+static const unsigned SPIRAddrSpaceMap[] = {
+    0, // Default
+    1, // opencl_global
+    3, // opencl_local
+    2, // opencl_constant
+    0, // opencl_private
+    4, // opencl_generic
+    0, // cuda_device
+    0, // cuda_constant
+    0  // cuda_shared
+};
+
+class LLVM_LIBRARY_VISIBILITY SPIRTargetInfo : public TargetInfo {
+public:
+  SPIRTargetInfo(const llvm::Triple &Triple, const TargetOptions &)
+      : TargetInfo(Triple) {
+    assert(getTriple().getOS() == llvm::Triple::UnknownOS &&
+           "SPIR target must use unknown OS");
+    assert(getTriple().getEnvironment() == llvm::Triple::UnknownEnvironment &&
+           "SPIR target must use unknown environment type");
+    TLSSupported = false;
+    VLASupported = false;
+    LongWidth = LongAlign = 64;
+    AddrSpaceMap = &SPIRAddrSpaceMap;
+    UseAddrSpaceMapMangling = true;
+    HasLegalHalfType = true;
+    HasFloat16 = true;
+    // Define available target features
+    // These must be defined in sorted order!
+    NoAsmVariants = true;
+  }
+
+  void getTargetDefines(const LangOptions &Opts,
+                        MacroBuilder &Builder) const override;
+
+  bool hasFeature(StringRef Feature) const override {
+    return Feature == "spir";
+  }
+
+  // SPIR supports the half type and the only llvm intrinsic allowed in SPIR is
+  // memcpy as per section 3 of the SPIR spec.
+  bool useFP16ConversionIntrinsics() const override { return false; }
+
+  ArrayRef<Builtin::Info> getTargetBuiltins() const override { return None; }
+
+  const char *getClobbers() const override { return ""; }
+
+  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;
+  }
+
+  BuiltinVaListKind getBuiltinVaListKind() const override {
+    return TargetInfo::VoidPtrBuiltinVaList;
+  }
+
+  CallingConvCheckResult checkCallingConvention(CallingConv CC) const override {
+    return (CC == CC_SpirFunction || CC == CC_OpenCLKernel) ? CCCR_OK
+                                                            : CCCR_Warning;
+  }
+
+  CallingConv getDefaultCallingConv() const override {
+    return CC_SpirFunction;
+  }
+
+  void setSupportedOpenCLOpts() override {
+    // Assume all OpenCL extensions and optional core features are supported
+    // for SPIR since it is a generic target.
+    getSupportedOpenCLOpts().supportAll();
+  }
+};
+class LLVM_LIBRARY_VISIBILITY SPIR32TargetInfo : public SPIRTargetInfo {
+public:
+  SPIR32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
+      : SPIRTargetInfo(Triple, Opts) {
+    PointerWidth = PointerAlign = 32;
+    SizeType = TargetInfo::UnsignedInt;
+    PtrDiffType = IntPtrType = TargetInfo::SignedInt;
+    resetDataLayout("e-p:32:32-i64:64-v16:16-v24:32-v32:32-v48:64-"
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+  }
+
+  void getTargetDefines(const LangOptions &Opts,
+                        MacroBuilder &Builder) const override;
+};
+
+class LLVM_LIBRARY_VISIBILITY SPIR64TargetInfo : public SPIRTargetInfo {
+public:
+  SPIR64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
+      : SPIRTargetInfo(Triple, Opts) {
+    PointerWidth = PointerAlign = 64;
+    SizeType = TargetInfo::UnsignedLong;
+    PtrDiffType = IntPtrType = TargetInfo::SignedLong;
+    resetDataLayout("e-i64:64-v16:16-v24:32-v32:32-v48:64-"
+                    "v96:128-v192:256-v256:256-v512:512-v1024:1024");
+  }
+
+  void getTargetDefines(const LangOptions &Opts,
+                        MacroBuilder &Builder) const override;
+};
+} // namespace targets
+} // namespace clang
+#endif // LLVM_CLANG_LIB_BASIC_TARGETS_SPIR_H