* Dumping control flow graph after each optimization pass
@ 2021-10-16 20:27 Jayakrishna Vadayath
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From: Jayakrishna Vadayath @ 2021-10-16 20:27 UTC (permalink / raw)
To: gcc-help
Dear devs,
I wanted to know if it is possible to dump the control flow graph
representation of functions before/after each optimization pass.
I found that it is possible to dump the IR after each optimization
pass using the following flags:
-fdump-ipa-all-all -fdump-rtl-all-all -fdump-tree-all-all.
I also found that using the flag -fdump-tree-all-graph can dump the
control flow graph representation into .dot files.
However, when I compared the number of files generated by both of
these sets of flags,
I found that the first set generated more files than the second one.
I believe this is because the second set only dumps the graph
representation for the optimization passes that fall into -fdump-tree
and does not include the optimization passes for -fdump-ipa and
-fdump-rtl.
Is there a way to dump the control flow graph representation for all
of the optimization passes ?
Please let me know
Thank you.
--
Regards
Jayakrishna Menon
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