================
@@ -617,6 +625,23 @@ FileID SourceManager::createFileIDImpl(ContentCache &File,
StringRef Filename,
return FileID::get(LoadedID);
}
unsigned FileSize = File.getSize();
+#ifdef __MVS__
+ llvm::ErrorOr<bool> NeedConversion =
+ llvm::needzOSConversion(Filename.str().c_str());
+ if (NeedConversion && *NeedConversion) {
+ // Buffer size may increase due to potential z/OS EBCDIC to UTF-8
+ // conversion.
+ if (std::optional<llvm::MemoryBufferRef> Buffer =
+ File.getBufferOrNone(Diag, getFileManager())) {
+ unsigned BufSize = Buffer->getBufferSize();
+ if (BufSize > FileSize) {
+ if (File.ContentsEntry.has_value())
+ File.ContentsEntry->getFileEntry().setSize(BufSize);
+ FileSize = BufSize;
+ }
+ }
+ }
+#endif
----------------
abhina-sree wrote:
I did a small bit of refactoring based on Sean's comments to reduce the number
of ifdefs now, thanks!
https://github.com/llvm/llvm-project/pull/98652
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