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Author SHA1 Message Date
Rong Xu 1dd39b1133 [PGO] Fix incorrect function entry count 
Function entry count might be zero after the profile counts reset and
before reentry to the function.

Zero profile entry count is very bad as the profile count from BFI will
be wrong.

A simple fix is to set the profile entry count to 1 if there are
non-zero profile counts in this function.

Differential Revision: https://reviews.llvm.org/D84378
 2020-07-24 17:39:55 -07:00
Rong Xu dcf1bca0de Revert "[PGO][InstrProf] Do not promote count if the exit blocks contains ret instruction" 
This reverts commit 867ef4472d.
 2020-07-24 17:33:49 -07:00
Rong Xu 867ef4472d [PGO][InstrProf] Do not promote count if the exit blocks contains ret instruction 
Forgot including the tests in the commit 6fdc6f6c7d.
 2020-07-24 17:23:33 -07:00