[NFC] Add optional include to Format.h

Format.h uses std::optional but doesn't include the optional header resulting in a build failure due to a missing 'optional' type. Reviewed By: compnerd, mib Differential Revision: https://reviews.llvm.org/D154664
llvm · Jul 9, 2023 · 0f9f951 · 0f9f951
1 parent 643b7bc
commit 0f9f951
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/llvm/include/llvm/Support/Format.h b/llvm/include/llvm/Support/Format.h
@@ -28,6 +28,7 @@
 #include "llvm/Support/DataTypes.h"
 #include <cassert>
 #include <cstdio>
+#include <optional>
 #include <tuple>
 #include <utility>