diff --git a/Runtimes/Core/CMakeLists.txt b/Runtimes/Core/CMakeLists.txt
index 54c25b0bbb5aa..23c46afbf4a4d 100644
--- a/Runtimes/Core/CMakeLists.txt
+++ b/Runtimes/Core/CMakeLists.txt
@@ -157,6 +157,8 @@ add_link_options($<$<PLATFORM_ID:Windows>:LINKER:/WX>)
 add_compile_options(
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-library-level api>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-runtime-compatibility-version none>"
+  "$<$<COMPILE_LANGUAGE:Swift>:-disable-autolinking-runtime-compatibility-dynamic-replacements>"
+  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -disable-autolinking-runtime-compatibility-concurrency>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature NoncopyableGenerics2>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature SuppressedAssociatedTypes>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature SE427NoInferenceOnExtension>"
@@ -171,10 +173,14 @@ add_compile_options(
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature Extern>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature ValueGenerics>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-enable-experimental-feature AddressableParameters>"
-  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -enable-experimental-concise-pound-file>"
+  # TODO: we should reevaluate if it still makes sense to restrict this
+  # to Darwin, https://github.com/swiftlang/swift/issues/79279
+  "$<$<AND:$<PLATFORM_ID:Darwin>,$<COMPILE_LANGUAGE:Swift>>:-save-optimization-record=bitstream>"
+  "$<$<COMPILE_LANGUAGE:Swift>:-warn-implicit-overrides>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -enable-lexical-lifetimes=false>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -disable-implicit-concurrency-module-import>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -disable-implicit-string-processing-module-import>"
+  "$<$<COMPILE_LANGUAGE:Swift>:-no-link-objc-runtime>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -enforce-exclusivity=unchecked>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -enable-ossa-modules>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -empty-abi-descriptor>"
diff --git a/Runtimes/Core/core/CMakeLists.txt b/Runtimes/Core/core/CMakeLists.txt
index 23f9741d2f887..5b09bfa435e6f 100644
--- a/Runtimes/Core/core/CMakeLists.txt
+++ b/Runtimes/Core/core/CMakeLists.txt
@@ -274,14 +274,13 @@ if(APPLE AND BUILD_SHARED_LIBS)
 endif()
 
 target_compile_options(swiftCore PRIVATE
+  # STAGING: Temporarily avoids having to write #fileID in Swift.swiftinterface.
+  # see also 327ea8bce2d1107a847d444651b19ca6a2901c9e
+  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -enable-experimental-concise-pound-file>"
   $<$<COMPILE_LANGUAGE:Swift>:-parse-stdlib>
   $<$<COMPILE_LANGUAGE:Swift>:-nostdimport>
   $<$<COMPILE_LANGUAGE:Swift>:-explicit-module-build>
-  $<$<COMPILE_LANGUAGE:Swift>:-disable-autolinking-runtime-compatibility-dynamic-replacements>
-  $<$<COMPILE_LANGUAGE:Swift>:-no-link-objc-runtime>
-  $<$<COMPILE_LANGUAGE:Swift>:-warn-implicit-overrides>
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -group-info-path -Xfrontend ${CMAKE_CURRENT_SOURCE_DIR}/GroupInfo.json>"
-  "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -disable-autolinking-runtime-compatibility-concurrency>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -disable-objc-attr-requires-foundation-module>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -require-explicit-availability=ignore>"
   "$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -prespecialize-generic-metadata>")