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3 Commits

Author SHA1 Message Date
Duncan Sands e8ce94fcd7 GlobalOpt forgot to handle bitcast when analyzing globals. Found by inspection. 
llvm-svn: 159546
 2012-07-02 18:55:39 +00:00
Rafael Espindola 1821c6c3b0 Some optimizations done by globalopt are safe only for internal linkage, not 
linkonce linkage. For example, it is not valid to add unnamed_addr.

This also fixes a crash in g++.dg/opt/static5.C.

llvm-svn: 158528
 2012-06-15 18:00:24 +00:00
Rafael Espindola fc355bc070 Add unnamed_addr when we can show that address of a global is not used. 
llvm-svn: 123834
 2011-01-19 16:32:21 +00:00