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3 Commits

Author SHA1 Message Date
Wei Mi 80865f7579 Add "REQUIRES: zlib" in forward-compatible.test since it handles compressed file. 2021-09-24 15:35:07 -07:00
Wei Mi e8b376547b Fixed a bug in https://reviews.llvm.org/rG8eb617d719bdc6a4ed7773925d2421b9bbdd4b7a. 
For compressed profile when reading an unknown section, the data reader pointer
adjustment was incorrect. This patch fixed that.
 2021-09-24 15:23:45 -07:00
Wei Mi 8eb617d719 [SampleFDO] Allow forward compatibility when adding a new section for extbinary 
format.

Currently when we add a new section in the profile format and generate a profile
containing the new section, older compiler which reads the new profile will
issue an error. The forward incompatibility can cause unnecessary churn when
extending the profile. This patch removes the incompatibility when adding a new
section for extbinary format.

Differential Revision: https://reviews.llvm.org/D109398
 2021-09-07 19:38:43 -07:00