steakhal added a comment.

AFAICT this patch does not introduce significant overhead to the exploded graph 
DOT dumps.
Before the patch, an exploded graph took 12G and about 55 secs for a single 
top-level function.
After the patch, it increased to 13G, and the runtime remained the same as 
expected.

Which is about a 1.5 % increase in size in total. TBH I expected slightly 
higher numbers.

This benchmark was done using a release build with dumps, asserts, and 
expensive checks.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D103967/new/

https://reviews.llvm.org/D103967

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