1 files changed, 96 insertions, 0 deletions
diff --git a/lib/Basic/Targets/WebAssembly.cpp b/lib/Basic/Targets/WebAssembly.cpp
new file mode 100644
index 000000000000..915aad4b563b
--- /dev/null
+++ b/lib/Basic/Targets/WebAssembly.cpp
@@ -0,0 +1,96 @@
+//===--- WebAssembly.cpp - Implement WebAssembly target feature support ---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements WebAssembly TargetInfo objects.
+//
+//===----------------------------------------------------------------------===//
+
+#include "WebAssembly.h"
+#include "Targets.h"
+#include "clang/Basic/Builtins.h"
+#include "clang/Basic/Diagnostic.h"
+#include "clang/Basic/TargetBuiltins.h"
+#include "llvm/ADT/StringSwitch.h"
+
+using namespace clang;
+using namespace clang::targets;
+
+const Builtin::Info WebAssemblyTargetInfo::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/BuiltinsWebAssembly.def"
+};
+
+bool WebAssemblyTargetInfo::hasFeature(StringRef Feature) const {
+  return llvm::StringSwitch<bool>(Feature)
+      .Case("simd128", SIMDLevel >= SIMD128)
+      .Case("nontrapping-fptoint", HasNontrappingFPToInt)
+      .Default(false);
+}
+
+bool WebAssemblyTargetInfo::isValidCPUName(StringRef Name) const {
+  return llvm::StringSwitch<bool>(Name)
+      .Case("mvp", true)
+      .Case("bleeding-edge", true)
+      .Case("generic", true)
+      .Default(false);
+}
+
+void WebAssemblyTargetInfo::getTargetDefines(const LangOptions &Opts,
+                                             MacroBuilder &Builder) const {
+  defineCPUMacros(Builder, "wasm", /*Tuning=*/false);
+  if (SIMDLevel >= SIMD128)
+    Builder.defineMacro("__wasm_simd128__");
+}
+
+bool WebAssemblyTargetInfo::handleTargetFeatures(
+    std::vector<std::string> &Features, DiagnosticsEngine &Diags) {
+  for (const auto &Feature : Features) {
+    if (Feature == "+simd128") {
+      SIMDLevel = std::max(SIMDLevel, SIMD128);
+      continue;
+    }
+    if (Feature == "-simd128") {
+      SIMDLevel = std::min(SIMDLevel, SIMDEnum(SIMD128 - 1));
+      continue;
+    }
+    if (Feature == "+nontrapping-fptoint") {
+      HasNontrappingFPToInt = true;
+      continue;
+    }
+    if (Feature == "-nontrapping-fptoint") {
+      HasNontrappingFPToInt = false;
+      continue;
+    }
+
+    Diags.Report(diag::err_opt_not_valid_with_opt)
+        << Feature << "-target-feature";
+    return false;
+  }
+  return true;
+}
+
+ArrayRef<Builtin::Info> WebAssemblyTargetInfo::getTargetBuiltins() const {
+  return llvm::makeArrayRef(BuiltinInfo, clang::WebAssembly::LastTSBuiltin -
+                                             Builtin::FirstTSBuiltin);
+}
+
+void WebAssembly32TargetInfo::getTargetDefines(const LangOptions &Opts,
+                                               MacroBuilder &Builder) const {
+  WebAssemblyTargetInfo::getTargetDefines(Opts, Builder);
+  defineCPUMacros(Builder, "wasm32", /*Tuning=*/false);
+}
+
+void WebAssembly64TargetInfo::getTargetDefines(const LangOptions &Opts,
+                                               MacroBuilder &Builder) const {
+  WebAssemblyTargetInfo::getTargetDefines(Opts, Builder);
+  defineCPUMacros(Builder, "wasm64", /*Tuning=*/false);
+}