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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2014-03-01 00:08:04 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2014-03-01 00:08:04 +0000 |
| commit | 49f906a36fdad83a9935d6f1815d620a7d0bf57a (patch) | |
| tree | 8cd2c4e93b4c73e04c2af692c044eadb55c809ca /llvm/lib/Support/SmallPtrSet.cpp | |
| parent | 49133948a96617a67631c59d3158a8aa3463136c (diff) | |
| download | llvm-49f906a36fdad83a9935d6f1815d620a7d0bf57a.zip llvm-49f906a36fdad83a9935d6f1815d620a7d0bf57a.tar.gz llvm-49f906a36fdad83a9935d6f1815d620a7d0bf57a.tar.bz2 | |
If a module A exports a macro M, and a module B imports that macro and #undef's
it, importers of B should not see the macro. This is complicated by the fact
that A's macro could also be visible through a different path. The rules (as
hashed out on cfe-commits) are included as a documentation update in this
change.
With this, the number of regressions in libc++'s testsuite when modules are
enabled drops from 47 to 7. Those remaining 7 are also macro-related, and are
due to remaining bugs in this change (in particular, the handling of submodules
is imperfect).
llvm-svn: 202560
Diffstat (limited to 'llvm/lib/Support/SmallPtrSet.cpp')
0 files changed, 0 insertions, 0 deletions