Commit Graph

5 Commits

Author SHA1 Message Date
John McCall 8e4c74bb7c Simplify EH control flow by observing that EH scopes form a simple
hierarchy of delegation, and that EH selector values are meaningful
function-wide (good thing, too, or inlining wouldn't work).
2,3d
1a
hierarchy of delegation and that EH selector values have the same
meaning everywhere in the function instead of being meaningful only
in the context of a specific selector.

This removes the need for routing edges through EH cleanups,
since a cleanup simply always branches to its enclosing scope.

llvm-svn: 137293
2011-08-11 02:22:43 +00:00
John McCall 928a25714e Enforce access control for the destructor in a new[] expression and mark
it as used.  Otherwise, we can fail to instantiate or validate the destructor,
which can lead to crashes in IR gen like PR10351.

llvm-svn: 135073
2011-07-13 20:12:57 +00:00
John McCall f677a8e99e Convert the standard default-construction loops to use phis and
partial destruction.

llvm-svn: 135033
2011-07-13 06:10:41 +00:00
John McCall 3b935d33a1 Emit partial destruction of structs with initializer lists.
llvm-svn: 134913
2011-07-11 19:35:02 +00:00
John McCall 178360e1cd Fix a lot of problems with the partial destruction of arrays:
- an off-by-one error in emission of irregular array limits for
   InitListExprs
 - use an EH partial-destruction cleanup within the normal
   array-destruction cleanup
 - get the branch destinations right for the empty check
Also some refactoring which unfortunately obscures these changes.

llvm-svn: 134890
2011-07-11 08:38:19 +00:00