Yingwei Zheng 04c38981a9 [Clang][CodeGen] Do not set inbounds flag in EmitMemberDataPointerAddress when the base pointer is null (#130952) ...

See also https://github.com/llvm/llvm-project/pull/130734 for the
original motivation.

This pattern (`container_of`) is also widely used by real-world
programs.
Examples:

1d89d7d5d7/llvm/include/llvm/IR/SymbolTableListTraits.h (L77-L87)

a2a53cb728/src/util-inl.h (L134-L137)
https://github.com/search?q=*%29nullptr-%3E*&type=code

2025-04-11 10:51:08 +08:00

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