Commit Graph

6 Commits

Author SHA1 Message Date
Vedant Kumar 86705ba5b1 Reapply (2x) "[PGO] Fix name encoding for ObjC-like functions"
Function names in ObjC can have spaces in them. This interacts poorly
with name compression, which uses spaces to separate PGO names. Fix the
issue by using a different separator and update a test.

I chose "\01" as the separator because 1) it's non-printable, 2) we
strip it from PGO names, and 3) it's the next natural choice once "\00"
is discarded (that one's overloaded).

What's changed since the original commit?

- I fixed up the covmap-V2 binary format tests using a linux VM.
- I weakened the CHECK lines in instrprof-comdat.h to account for the
  fact that there have been bugfixes to clang coverage. These will be
  fixed up in a follow-up.
- I added an assert to make sure we don't get bitten by this again.
- I constructed the c-general.profraw file without name compression
  enabled to appease some bots.

Differential Revision: http://reviews.llvm.org/D18516

llvm-svn: 264658
2016-03-28 21:06:42 +00:00
Vedant Kumar 476a94d9ef Revert "Reapply "[PGO] Fix name encoding for ObjC-like functions""
This reverts commit r264641 to investigate why c-general.test is failing
on the bots.

llvm-svn: 264643
2016-03-28 20:20:40 +00:00
Vedant Kumar f20b6cec1c Reapply "[PGO] Fix name encoding for ObjC-like functions"
Function names in ObjC can have spaces in them. This interacts poorly
with name compression, which uses spaces to separate PGO names. Fix the
issue by using a different separator and update a test.

I chose "\01" as the separator because 1) it's non-printable, 2) we
strip it from PGO names, and 3) it's the next natural choice once "\00"
is discarded (that one's overloaded).

This reverts the revert commit beaf3d18. What's changed?

- I fixed up the covmap-V2 binary format tests using a linux VM.
- I updated the expected counts in instrprof-comdat.h to account for
  the fact that there have been bugfixes to clang coverage.
- I added an assert to make sure we don't get bitten by this again.

Differential Revision: http://reviews.llvm.org/D18516

llvm-svn: 264641
2016-03-28 20:12:07 +00:00
Xinliang David Li b4fc4cbee6 re-submit test case (withright format-version)
llvm-svn: 258384
2016-01-21 02:35:59 +00:00
Xinliang David Li d75eaf2b17 Revert 258376 -- wrong version
llvm-svn: 258377
2016-01-21 01:21:00 +00:00
Xinliang David Li bc05e4e4c0 [Coverage] Add a test case for comdat
The binary contains two (merged) covmap sections which
have duplicate CovMapRecords from comdat (template instantation).
This test makes sure the reader reads it properly. It also
tests that the coverage data from different instantiations
of the same template function are properly merged in show
output.

llvm-svn: 258376
2016-01-21 00:57:42 +00:00