Unconditionally append .hip as the default output filename

[ROCm/clr commit: dbbd6d576d]

projects/clr/hipamd/hipify-clang/src/Cuda2Hip.cpp

@@ -4225,20 +4225,14 @@ int main(int argc, const char **argv) {
   }
   for (const auto & src : fileSources) {
     if (dst.empty()) {
-      dst = src;
-      if (!Inplace) {
-        size_t pos = dst.rfind(".");
-        if (pos != std::string::npos && pos + 1 < dst.size()) {
-          dst = dst.substr(0, pos) + ".hip." + dst.substr(pos + 1, dst.size() - pos - 1);
-        } else {
-          dst += ".hip.cu";
-        }
-      }
-    } else {
       if (Inplace) {
-        llvm::errs() << "[HIPIFY] conflict: both -o and -inplace options are specified.\n";
-        return 1;
+        dst = src;
+      } else {
+        dst = src + ".hip";
       }
+    } else if (Inplace) {
+      llvm::errs() << "[HIPIFY] conflict: both -o and -inplace options are specified.\n";
+      return 1;
     }
 
     std::string tmpFile = src + ".hipify-tmp";