4 Commits

Author	SHA1	Message	Date
Rafael Espindola	c229a4fff4	Fix const merging when an alias of a const is llvm.used. ... We used to disable constant merging not only if a constant is llvm.used, but also if an alias of a constant is llvm.used. This change fixes that. llvm-svn: 181175	2013-05-06 01:48:55 +00:00
Dmitri Gribenko	b137c9e551	Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID ... This is done to avoid odd test failures, like the one fixed in r171243. llvm-svn: 171246	2012-12-30 01:28:40 +00:00
Nick Lewycky	8ac9ecedfd	Teach the ConstantMerge pass about alignment. Fixes PR10514! ... llvm-svn: 136250	2011-07-27 19:47:34 +00:00
Rafael Espindola	751677a040	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. llvm-svn: 123584	2011-01-16 17:05:09 +00:00