From 7606f6773cb5abe701b615b0bec54e68758955d7 Mon Sep 17 00:00:00 2001
From: Jan Svoboda <jan_svoboda@apple.com>
Date: Fri, 21 Mar 2025 13:52:12 -0700
Subject: [clang] NFCI: Mutate `HeaderSearchOptions` earlier (#130823)

---
 clang/lib/Frontend/CompilerInvocation.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'clang/lib/Frontend/CompilerInvocation.cpp')

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index b2d8d12..756ae10 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -4971,6 +4971,14 @@ bool CompilerInvocation::CreateFromArgsImpl(
   llvm::Triple T(Res.getTargetOpts().Triple);
   ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags,
                         Res.getFileSystemOpts().WorkingDir);
+  if (Res.getFrontendOpts().GenReducedBMI ||
+      Res.getFrontendOpts().ProgramAction ==
+          frontend::GenerateReducedModuleInterface ||
+      Res.getFrontendOpts().ProgramAction ==
+          frontend::GenerateModuleInterface) {
+    Res.getHeaderSearchOpts().ModulesSkipDiagnosticOptions = true;
+    Res.getHeaderSearchOpts().ModulesSkipHeaderSearchPaths = true;
+  }
   ParseAPINotesArgs(Res.getAPINotesOpts(), Args, Diags);
 
   ParsePointerAuthArgs(LangOpts, Args, Diags);
-- 
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