tree 5bdff22c0f05093e02e4aa969b6e35bfa9b60b30
parent ffb4b6e299069139908540ce97be4462e16b53a4
author Chris Lattner <sabre@nondot.org> 1239778878 +0000
committer Chris Lattner <sabre@nondot.org> 1239778878 +0000

Rejigger how -pedantic and -pedantic-errors work and their interaction
with other diagnostic mapping.  In the new scheme, -Wfoo or -Wno-foo or 
-Werror=foo all override the -pedantic options, and __extension__ 
robustly silences all extension diagnostics in their scope.

An added bonus of this change is that MAP_DEFAULT goes away, meaning that
per-diagnostic mapping information can now be stored in 2 bits, doubling
the density of the Diagnostic::DiagMapping array.  This also 
substantially simplifies Diagnostic::getDiagnosticLevel.

OTOH, this temporarily introduces some "macro intensive" code in 
Diagnostic.cpp.  This will be addressed in a later patch.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69154 91177308-0d34-0410-b5e6-96231b3b80d8