2 Commits

Author	SHA1	Message	Date
Rafael Espindola	d6e5cbc842	Don't merge two constants if we care about the address of both. ... This fixes the original testcase in PR8927. It also causes a clang binary built with a patched clang to increase in size by 0.21%. We can probably get some of the size back by writing a pass that detects that a global never has its pointer compared and adds unnamed_addr to it (maybe extend global opt). It is also possible that there are some other cases clang could add unnamed_addr to. I will investigate extending globalopt next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123584 91177308-0d34-0410-b5e6-96231b3b80d8	2011-01-16 17:05:09 +00:00
Nick Lewycky	2820c25e84	Make constmerge a two-pass algorithm so that it won't miss merging ... opporuntities. Fixes PR8978. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123541 91177308-0d34-0410-b5e6-96231b3b80d8	2011-01-15 18:14:21 +00:00