Yuanfang Chen 27a972a699 Diagnose -Wunused-value based on CFG reachability ... (This relands 59337263ab and makes sure comma operator diagnostics are suppressed in a SFINAE context.) While at it, add the diagnosis message "left operand of comma operator has no effect" (used by GCC) for comma operator. This also makes Clang diagnose in the constant evaluation context which aligns with GCC/MSVC behavior. (https://godbolt.org/z/7zxb8Tx96) Reviewed By: aaron.ballman Differential Revision: https://reviews.llvm.org/D103938		2021-09-28 10:00:15 -07:00
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p8.cpp	Diagnose -Wunused-value based on CFG reachability	2021-09-28 10:00:15 -07:00
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