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diagnostic settings using _Pragma within a macro.
The AST writer had previously been assuming that all diagnostic state
transitions would occur within a FileID corresponding to a file. When a
diagnostic state change occured within a macro, it was unable to form a
location for that state change and would instead corrupt the diagnostic state
of the "root" node (and thus that of the main compilation).
Also introduce a "#pragma clang __debug diag_mapping" debugging utility
that I added to track this issue down.
llvm-svn: 324695
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happen when testing -Wpadded.
llvm-svn: 306349
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The intent for an explicit module build is that the diagnostics produced within
the module are those that were configured when the module was built, not those
that are enabled within a user of the module. This includes diagnostics that
don't actually show up until the module is used (for instance, diagnostics
produced during template instantiation and weird cases like -Wpadded).
We serialized and restored the diagnostic state for individual warning groups,
but previously did not track the state for flags like -Werror and -Weverything,
which are implemented as separate bits rather than as part of the diagnostics
mapping information.
llvm-svn: 301992
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triple. Fixes r301846.
MicrosoftRecordLayoutBuilder doesn't have ability of -Wpadded.
FIXME: Would other diag be available here?
llvm-svn: 301898
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pragmas.
If a file has no diagnostic pragmas, we build its diagnostic state lazily, but
in this case we never set up the root state to be the diagnostic state in which
the module was originally built, so the diagnostic flags for files in the
module with no diagnostic pragmas were incorrectly based on the user of the
module rather than the diagnostic state when the module was built.
llvm-svn: 301846
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