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2019 Mar 29
2
Proposal for O1/Og Optimization and Code Generation Pipeline
When I worked on the HPE NonStop compilers for x86 (we used Open64, not
LLVM), we adjusted our -O1 to make sure the source display didn't
"bounce around" based on feedback from users. We disabled any
optimization that would move things across statement boundaries. We
also disabled/de-tuned dead store since our DWARF location list support
was pretty basic and with the removed store,