[PATCH] D92669: [PGO] Adjust -vp-counters-per-site.

[Hiroshi Yamauchi via Phabricator via llvm-commits]

yamauchi updated this revision to Diff 310684.
yamauchi added a comment.
Herald added a subscriber: mgorny.

Adjust only for dynamic linking mode. Rebase.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D92669/new/

https://reviews.llvm.org/D92669

Files:
  llvm/cmake/modules/HandleLLVMOptions.cmake


Index: llvm/cmake/modules/HandleLLVMOptions.cmake
===================================================================
--- llvm/cmake/modules/HandleLLVMOptions.cmake
+++ llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -917,6 +917,15 @@
           CMAKE_EXE_LINKER_FLAGS
           CMAKE_SHARED_LINKER_FLAGS)
     endif()
+    # Set this to avoid running out of the value profile node section
+    # under clang in dynamic linking mode.
+    if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
+        CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 11 AND
+        LLVM_LINK_LLVM_DYLIB)
+      append("-Xclang -mllvm -Xclang -vp-counters-per-site=1.5"
+        CMAKE_CXX_FLAGS
+        CMAKE_C_FLAGS)
+    endif()
   elseif(uppercase_LLVM_BUILD_INSTRUMENTED STREQUAL "CSIR")
     append("-fcs-profile-generate=\"${LLVM_CSPROFILE_DATA_DIR}\""
       CMAKE_CXX_FLAGS


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