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[CIR] Disable gcc partially overloaded virtual warning (#130322)

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GCC, unlike clang, issues a warning when one virtual function is
overridden in a derived class but one or more other virtual functions
with the same name and different signature from a base class are not
overridden. This leads to many warnings in the MLIR and ClangIR code
when using the OpenConversionPattern<>::matchAndRewrite() function in
the ordinary way. The "hiding" behavior is what we want, so we're just
disabling the warning here.
This commit is contained in:
Andy Kaylor 2025-03-10 10:21:29 -07:00 committed by GitHub
parent 70477d979f
commit e1bd39c173
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GPG Key ID: B5690EEEBB952194
2 changed files with 22 additions and 0 deletions
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11
clang/lib/CIR/CMakeLists.txt
View File

@ -1,6 +1,17 @@
include_directories(${LLVM_MAIN_SRC_DIR}/../mlir/include)
include_directories(${CMAKE_BINARY_DIR}/tools/mlir/include)
# GCC, unlike clang, issues a warning when one virtual function is overridden
# in a derived class but one or more other virtual functions with the same
# name and different signature from a base class are not overridden. This
# leads to many warnings in the MLIR and ClangIR code when using the
# OpenConversionPattern<>::matchAndRewrite() function in the ordinary way.
# The "hiding" behavior is what we want, so we're just disabling the warning
# here.
if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang"))
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-overloaded-virtual")
endif()
add_subdirectory(Dialect)
add_subdirectory(CodeGen)
add_subdirectory(FrontendAction)

11
clang/tools/cir-opt/CMakeLists.txt
View File

@ -4,6 +4,17 @@ get_property(conversion_libs GLOBAL PROPERTY MLIR_CONVERSION_LIBS)
include_directories(${LLVM_MAIN_SRC_DIR}/../mlir/include)
include_directories(${CMAKE_BINARY_DIR}/tools/mlir/include)
# GCC, unlike clang, issues a warning when one virtual function is overridden
# in a derived class but one or more other virtual functions with the same
# name and different signature from a base class are not overridden. This
# leads to many warnings in the MLIR and ClangIR code when using the
# OpenConversionPattern<>::matchAndRewrite() function in the ordinary way.
# The "hiding" behavior is what we want, so we're just disabling the warning
# here.
if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang"))
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-overloaded-virtual")
endif()
add_clang_tool(cir-opt
cir-opt.cpp
)