3 Commits

Author	SHA1	Message	Date
Manman Ren	0ed04fc9ab	TBAA: handle scalar TBAA format and struct-path aware TBAA format. ... Remove the command line argument "struct-path-tbaa" since we should not depend on command line argument to decide which format the IR file is using. Instead, we check the first operand of the tbaa tag node, if it is a MDNode, we treat it as struct-path aware TBAA format, otherwise, we treat it as scalar TBAA format. When clang starts to use struct-path aware TBAA format no matter whether struct-path-tbaa is no, and we can auto-upgrade existing bc files, the support for scalar TBAA format can be dropped. Existing testing cases are updated to use the struct-path aware TBAA format. llvm-svn: 191538	2013-09-27 18:34:27 +00:00
Dmitri Gribenko	d7beca87f5	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. My previous regex was not good enough to find these. llvm-svn: 171343	2013-01-01 13:57:25 +00:00
Rafael Espindola	47d988c54c	When gvn decides to replace an instruction with another, we have to patch the ... replacement to make it at least as generic as the instruction being replaced. This includes: * dropping nsw/nuw flags * getting the least restrictive tbaa and fpmath metadata * merging ranges Fixes PR12979. llvm-svn: 157958	2012-06-04 22:44:21 +00:00