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Author SHA1 Message Date
Leonard Chan 007f674c6a Reland the "[NewPM] Port Sancov" patch from rL365838. No functional 
changes were made to the patch since then.

--------

[NewPM] Port Sancov

This patch contains a port of SanitizerCoverage to the new pass manager. This one's a bit hefty.

Changes:

- Split SanitizerCoverageModule into 2 SanitizerCoverage for passing over
  functions and ModuleSanitizerCoverage for passing over modules.
- ModuleSanitizerCoverage exists for adding 2 module level calls to initialization
  functions but only if there's a function that was instrumented by sancov.
- Added legacy and new PM wrapper classes that own instances of the 2 new classes.
- Update llvm tests and add clang tests.

llvm-svn: 367053
 2019-07-25 20:53:15 +00:00
Leonard Chan bb147aabc6 Revert "[NewPM] Port Sancov" 
This reverts commit 5652f35817.

llvm-svn: 366153
 2019-07-15 23:18:31 +00:00
Leonard Chan 5652f35817 [NewPM] Port Sancov 
This patch contains a port of SanitizerCoverage to the new pass manager. This one's a bit hefty.

Changes:

- Split SanitizerCoverageModule into 2 SanitizerCoverage for passing over
  functions and ModuleSanitizerCoverage for passing over modules.
- ModuleSanitizerCoverage exists for adding 2 module level calls to initialization
  functions but only if there's a function that was instrumented by sancov.
- Added legacy and new PM wrapper classes that own instances of the 2 new classes.
- Update llvm tests and add clang tests.

Differential Revision: https://reviews.llvm.org/D62888

llvm-svn: 365838
 2019-07-11 22:35:40 +00:00
Matt Morehouse 3bea25e554 [SanitizerCoverage] Create comdat for global arrays. 
Summary:
Place global arrays in comdat sections with their associated functions.
This makes sure they are stripped along with the functions they
reference, even on the BFD linker.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51902

llvm-svn: 342186
 2018-09-13 21:45:55 +00:00
Matt Morehouse f0d7daa972 Revert "[SanitizerCoverage] Create comdat for global arrays." 
This reverts r341987 since it will cause trouble when there's a module
ID collision.

llvm-svn: 341995
 2018-09-11 21:15:41 +00:00
Matt Morehouse 7ce6032432 [SanitizerCoverage] Create comdat for global arrays. 
Summary:
Place global arrays in comdat sections with their associated functions.
This makes sure they are stripped along with the functions they
reference, even on the BFD linker.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51902

llvm-svn: 341987
 2018-09-11 20:10:40 +00:00
Matt Morehouse 40fbdd0c4f Revert "[SanitizerCoverage] Create comdat for global arrays." 
This reverts r341951 due to bot breakage.

llvm-svn: 341965
 2018-09-11 17:20:14 +00:00
Matt Morehouse eac270caf4 [SanitizerCoverage] Create comdat for global arrays. 
Summary:
Place global arrays in comdat sections with their associated functions.
This makes sure they are stripped along with the functions they
reference, even on the BFD linker.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51902

llvm-svn: 341951
 2018-09-11 15:23:14 +00:00
Kostya Serebryany 5ac427b8e4 [sanitizer-coverage] add two more modes of instrumentation: trace-div and trace-gep, mostly usaful for value-profile-based fuzzing; llvm part 
llvm-svn: 280043
 2016-08-30 01:12:10 +00:00