https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119614
--- Comment #46 from Jan Hubicka <hubicka at gcc dot gnu.org> --- Created attachment 61133 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61133&action=edit updated patch The problem in previous patch was that ipa-prop streams 0 to the end of block of summary section but never reads it. I guess someone copied streaming code that expected the block to be 0 terminated but also added logic to count how many summaries are streamed. Now the longer testcase compiles for me, but also it means that the testcase included in patch is not really testing the streaming (since it worked with streaming fully disabled)