llvm-project

9d65f771 - [KeyInstr] Enable -gkey-instructions by default if optimisations are enabled (#149509)

[KeyInstr] Enable -gkey-instructions by default if optimisations are enabled (#149509) That's enabling Clang's -gkey-instructions, cc1's -gkey-instructions remains off by default. Key Instructions improves the optimized-code debug-stepping experience in debuggers that use DWARF's `is_stmt` line table register to determine stepping behaviour. The feature can be disabled with -gno-key-instructions (note that the positive and negative flag both imply -g). RFC: https://discourse.llvm.org/t/rfc-improving-is-stmt-placement-for-better-interactive-debugging/82668