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[LLVM] Only enable -fno-lifetime-dse in LTO mode #131381

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Merged
merged 1 commit into from
Mar 14, 2025
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[LLVM] Only enable -fno-lifetime-dse in LTO mode #131381

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2 changes: 1 addition & 1 deletion llvm/cmake/modules/HandleLLVMOptions.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -688,7 +688,7 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
append("-Werror=unguarded-availability-new" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()

if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND LLVM_ENABLE_LTO)
# LLVM data structures like llvm::User and llvm::MDNode rely on
# the value of object storage persisting beyond the lifetime of the
# object (#24952). This is not standard compliant and causes a runtime
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