[llvm-branch-commits] [clang] release/21.x: [Clang][CMake] Use IRPGO instead of FE PGO for Cmake Caches (#155957) (PR #156271)

via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Sun Aug 31 20:55:35 PDT 2025


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: None (llvmbot)

<details>
<summary>Changes</summary>

Backport 7fca1f841b4c226d50ab7bad64de5db225d4193b

Requested by: @<!-- -->boomanaiden154

---
Full diff: https://github.com/llvm/llvm-project/pull/156271.diff


1 Files Affected:

- (modified) clang/cmake/caches/PGO.cmake (+1-1) 


``````````diff
diff --git a/clang/cmake/caches/PGO.cmake b/clang/cmake/caches/PGO.cmake
index 15bc755d110d1..d6471160037c1 100644
--- a/clang/cmake/caches/PGO.cmake
+++ b/clang/cmake/caches/PGO.cmake
@@ -5,7 +5,7 @@ set(LLVM_ENABLE_PROJECTS "clang;lld" CACHE STRING "")
 set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
 
 set(LLVM_TARGETS_TO_BUILD Native CACHE STRING "")
-set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED ON CACHE BOOL "")
+set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED IR CACHE BOOL "")
 set(CLANG_BOOTSTRAP_TARGETS
   generate-profdata
   stage2

``````````

</details>


https://github.com/llvm/llvm-project/pull/156271


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