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Dan Gohman 4a63fad976 Teach SimplifyCFG how to simplify indirectbr instructions. 
- Eliminate redundant successors.
 - Convert an indirectbr with one successor into a direct branch.

Also, generalize SimplifyCFG to be able to be run on a function entry block.
It knows quite a few simplifications which are applicable to the entry
block, and it only needs a few checks to avoid trouble with the entry block.

llvm-svn: 111060
 		2010-08-14 00:29:42 +00:00
clang Implement caching of code-completion results for macro definitions 2010-08-13 22:48:40 +00:00
compiler-rt add unit tests 2010-08-04 23:34:21 +00:00
libcxx Everything under [re.regex] 2010-08-13 18:11:23 +00:00
lldb Added a workaround for test suite hang while terminating by checking env variable 2010-08-13 22:58:44 +00:00
llvm Teach SimplifyCFG how to simplify indirectbr instructions. 2010-08-14 00:29:42 +00:00