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54 Commits

Author SHA1 Message Date
Dan Gohman f5c5e0773e Add a comment about odd "signed char" incompatibility between C++ and C. 
llvm-svn: 116593
 2010-10-15 17:52:03 +00:00
Dan Gohman d65c196439 Add a TBAA type for pointer types. 
llvm-svn: 116544
 2010-10-15 00:01:39 +00:00
Dan Gohman 3f1cf0f373 Unsigned types are TBAA-compatible with their signed counterparts. 
Also, handle unknown types conservatively.

llvm-svn: 116541
 2010-10-14 23:39:00 +00:00
Dan Gohman 947c9af774 Experimental TBAA support. 
This enables metadata generation by default, however the TBAA pass
in the optimizer is still disabled for now.

llvm-svn: 116536
 2010-10-14 23:06:10 +00:00