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CMakeLists: disable -Warray-bounds for GCC

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The reason why is explained in the comment.
This commit is contained in:
comex 2023-08-20 14:30:09 -07:00 committed by merry
parent b372dc6157
commit 563b40587a
1 changed files with 9 additions and 0 deletions
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9
CMakeLists.txt
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@ -104,6 +104,15 @@ else()
-Wfatal-errors)
endif()
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
# GCC produces bogus -Warray-bounds warnings from xbyak headers for code paths that are not
# actually reachable. Specifically, it happens in cases where some code casts an Operand&
# to Address& after first checking isMEM(), and that code is inlined in a situation where
# GCC knows that the variable is actually a Reg64. isMEM() will never return true for a
# Reg64, but GCC doesn't know that.
list(APPEND DYNARMIC_CXX_FLAGS -Wno-array-bounds)
endif()
if (CMAKE_CXX_COMPILER_ID MATCHES "[Cc]lang")
# Bracket depth determines maximum size of a fold expression in Clang since 9c9974c3ccb6.
# And this in turns limits the size of a std::array.