3 Commits

Author	SHA1	Message	Date
Kostya Serebryany	4cadd4afa0	[asan/coverage] change the way asan coverage instrumentation is done: instead of setting the guard to 1 in the generated code, pass the pointer to guard to __sanitizer_cov and set it there. No user-visible functionality change expected ... llvm-svn: 222675	2014-11-24 18:49:53 +00:00
Kostya Serebryany	cb45b126fb	[asan] add experimental basic-block tracing to asan-coverage; also fix -fsanitize-coverage=3 which was broken by r221718 ... llvm-svn: 222290	2014-11-19 00:22:58 +00:00
Kostya Serebryany	29a18dcbc5	Move asan-coverage into a separate phase. ... Summary: This change moves asan-coverage instrumentation into a separate Module pass. The other part of the change in clang introduces a new flag -fsanitize-coverage=N. Another small patch will update tests in compiler-rt. With this patch no functionality change is expected except for the flag name. The following changes will make the coverage instrumentation work with tsan/msan Test Plan: Run regression tests, chromium. Reviewers: nlewycky, samsonov Reviewed By: nlewycky, samsonov Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D6152 llvm-svn: 221718	2014-11-11 22:14:37 +00:00