[flang-commits] [clang] [flang] [llvm] [flang][cmake][perf-training] Optimize flang with PGO and BOLT (PR #198863)

[Michael Kruse via flang-commits]

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@@ -126,6 +145,25 @@ if ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES AND NOT FLANG_STANDALONE_BUILD)
   list(APPEND FLANG_TEST_DEPENDS flang-rt-test-deps)
 endif ()
 
+set(FLANG_BOLT_ALLOWLIST INSTRUMENT PERF LBR)
+set(FLANG_BOLT OFF CACHE STRING "Apply BOLT optimization to flang. \
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Meinersbur wrote:

There is also https://cmake.org/cmake/help/latest/prop_cache/STRINGS.html for a predefined set of allowed enum values

https://github.com/llvm/llvm-project/pull/198863