[llvm-dev] Stack Usage is more in the libunwind library .

[Umesh Kalappa via llvm-dev]

Hi All,

We recently migrated to llvm 9 from gcc -7 and found that the stack
usage is more  like 5K in the below function

getInfoFromDwarfSection() @ line : 1484
<https://github.com/llvm-mirror/libunwind/blob/master/src/UnwindCursor.hpp#L1484>


With our analysis and found that  "typename CFI_Parser<A>::PrologInfo
prolog" local data is taking up almost 4K space.
So we thinking to refactor the code by pushing the "prolog" to a global
scope.
Any comments on our approach will be appreciated

Thank you
~Umesh
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