Commit Graph

4 Commits

Author SHA1 Message Date
Chandler Carruth ffbf705cc3 [Modules] Fix a sneaky bug in r233249 where we would look for implicit
constructors in the current lexical context even though name lookup
found them via some other context merged into the redecl chain.

This can only happen for implicit constructors which can only have the
name of the type of the current context, so we can fix this by simply
*always* merging those names first. This also has the advantage of
removing the walk of the current lexical context from the common case
when this is the only constructor name we need to deal with (implicit or
otherwise).

I've enhanced the tests to cover this case (and uncovered an unrelated
bug which I fixed in r233325).

llvm-svn: 233327
2015-03-26 22:27:09 +00:00
Chandler Carruth 70a1369b34 [Modules] Add some more fun code to my modules stress test, this time
templates. Turns out all of this works correctly (so far). But it should
cover more code paths and will let me test some things that don't
actually work next.

llvm-svn: 233263
2015-03-26 08:49:55 +00:00
Chandler Carruth f85d98285e [Modules] Make "#pragma weak" undeclared identifiers be tracked
deterministically.

This fixes a latent issue where even Clang's Sema (and diagnostics) were
non-deterministic in the face of this pragma. The fix is super simple --
just use a MapVector so we track the order in which these are parsed (or
imported). Especially considering how rare they are, this seems like the
perfect tradeoff. I've also simplified the client code with judicious
use of auto and range based for loops.

I've added some pretty hilarious code to my stress test which now
survives the binary diff without issue.

llvm-svn: 233261
2015-03-26 08:32:49 +00:00
Chandler Carruth 75fc6a7f61 [Modules] Make the DeclUpdates map be processed in insertion order.
This fixes my stress tests non-determinism so far. However, I've not
started playing with templates, friends, or terrible macros. I've found
at least two more seeming instabilities and am just waiting for a test
case to actually trigger them.

llvm-svn: 233162
2015-03-25 01:02:12 +00:00