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Author SHA1 Message Date
Adrian Prantl 42ab39f1e8 Revert "Revert rL346454: Fix a use-after-free introduced by r344915." 
This un-reverts commit 346454 with a relaxed CHECK for Windows.

llvm-svn: 346556
 2018-11-09 21:17:38 +00:00
Simon Pilgrim b1e694b87e Revert rL346454: Fix a use-after-free introduced by r344915. 
r344915 added a call to ApplyDebugLocation to the sanitizer check
function emitter. Some of the sanitizers are emitted in the function
epilogue though and the LexicalScopeStack is emptied out before. By
detecting this situation and early-exiting from ApplyDebugLocation the
fallback location is used, which is equivalent to the return location.

rdar://problem/45859802
........
Causes EXPENSIVE_CHECKS build bot failures: http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win

llvm-svn: 346549
 2018-11-09 19:42:53 +00:00
Adrian Prantl 009cc9b7ca Fix a use-after-free introduced by r344915. 
r344915 added a call to ApplyDebugLocation to the sanitizer check
function emitter. Some of the sanitizers are emitted in the function
epilogue though and the LexicalScopeStack is emptied out before. By
detecting this situation and early-exiting from ApplyDebugLocation the
fallback location is used, which is equivalent to the return location.

rdar://problem/45859802

llvm-svn: 346454
 2018-11-09 00:26:15 +00:00