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Author SHA1 Message Date
James Y Knight 3f8b916698 Fix the behavior of clang's -w flag. 
It is intended to disable _all_ warnings, even those upgraded to
errors via `-Werror=warningname` or `#pragma clang diagnostic error'

Fixes: https://llvm.org/PR38231
Differential Revision: https://reviews.llvm.org/D53199

llvm-svn: 352535
 2019-01-29 19:33:48 +00:00
Daniel Dunbar 58d0af6c5f Basic/Diagnostics: Rewrite DiagnosticIDs::getDiagnosticLevel completely to be straighter line code, use the new DiagnosticMappingInfo flags, and eliminate the odd MAP_WARNING_NO_WERROR and friend mappings. 
- This fixes a host of obscure bugs with regards to how warning mapping options composed with one another, and I believe makes the code substantially easier to read and reason about.

llvm-svn: 140770
 2011-09-29 01:58:05 +00:00
Daniel Dunbar e9a700cba1 tests: Add some more tests for warning mappings. 
llvm-svn: 140764
 2011-09-29 01:37:40 +00:00