2 Commits

Author	SHA1	Message	Date
David Majnemer	fa0f1e660b	Don't passively concatenate MDNodes ... I have audited all the callers of concatenate and none require duplicate entries to service concatenation. These duplicates serve no purpose but to needlessly embiggen the IR. N.B. Layering getMostGenericAliasScope on top of concatenate makes it O(nlogn + mlogm) instead of O(n*m). llvm-svn: 278836	2016-08-16 18:48:34 +00:00
Akira Hatanaka	f6afd11538	[InstCombine] Preserve metadata when merging loads that are phi ... arguments. Make sure InstCombiner::FoldPHIArgLoadIntoPHI doesn't drop the following metadata: MD_tbaa MD_alias_scope MD_noalias MD_invariant_load MD_nonnull MD_range rdar://problem/17617709 Differential Revision: http://reviews.llvm.org/D12710 llvm-svn: 248419	2015-09-23 18:40:57 +00:00