Imported Upstream version 5.18.0.205

Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927

external/llvm/lib/Target/Mips/Mips16HardFloatInfo.cpp

@@ -0,0 +1,50 @@
+//===---- Mips16HardFloatInfo.cpp for Mips16 Hard Float              -----===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the Mips16 implementation of Mips16HardFloatInfo
+// namespace.
+//
+//===----------------------------------------------------------------------===//
+
+#include "Mips16HardFloatInfo.h"
+#include <string.h>
+
+namespace llvm {
+
+namespace Mips16HardFloatInfo {
+
+const FuncNameSignature PredefinedFuncs[] = {
+  { "__floatdidf", { NoSig, DRet } },
+  { "__floatdisf", { NoSig, FRet } },
+  { "__floatundidf", { NoSig, DRet } },
+  { "__fixsfdi", { FSig, NoFPRet } },
+  { "__fixunsdfsi", { DSig, NoFPRet } },
+  { "__fixunsdfdi", { DSig, NoFPRet } },
+  { "__fixdfdi", { DSig, NoFPRet } },
+  { "__fixunssfsi", { FSig, NoFPRet } },
+  { "__fixunssfdi", { FSig, NoFPRet } },
+  { "__floatundisf", { NoSig, FRet } },
+  { nullptr, { NoSig, NoFPRet } }
+};
+
+// just do a search for now. there are very few of these special cases.
+//
+extern FuncSignature const *findFuncSignature(const char *name) {
+  const char *name_;
+  int i = 0;
+  while (PredefinedFuncs[i].Name) {
+    name_ = PredefinedFuncs[i].Name;
+    if (strcmp(name, name_) == 0)
+      return &PredefinedFuncs[i].Signature;
+    i++;
+  }
+  return nullptr;
+}
+}
+}