[clang] [Fuchsia] Add STAGE2 flags for PGO (PR #150414)

[via cfe-commits]

https://github.com/gulfemsavrun created https://github.com/llvm/llvm-project/pull/150414

None

>From 50fb66e961d077ffcec3960638b2173e278c2c06 Mon Sep 17 00:00:00 2001
From: Gulfem Savrun Yeniceri <gulfem at google.com>
Date: Thu, 24 Jul 2025 09:40:22 +0000
Subject: [PATCH] [Fuchsia] Add STAGE2 flags for PGO

---
 clang/cmake/caches/Fuchsia.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/clang/cmake/caches/Fuchsia.cmake b/clang/cmake/caches/Fuchsia.cmake
index ee1d681d9f6df..a263c36cc0747 100644
--- a/clang/cmake/caches/Fuchsia.cmake
+++ b/clang/cmake/caches/Fuchsia.cmake
@@ -76,6 +76,9 @@ foreach(variable ${_FUCHSIA_BOOTSTRAP_PASSTHROUGH})
     get_property(value CACHE ${variable} PROPERTY VALUE)
     get_property(type CACHE ${variable} PROPERTY TYPE)
     set(BOOTSTRAP_${variable} "${value}" CACHE ${type} "")
+    if(FUCHSIA_ENABLE_PGO)
+      set(STAGE2_${variable} "${value}" CACHE ${type} "")
+    endif()
   endif()
 endforeach()