forked from OSchip/llvm-project
ca741a87f2
Summary: Make MemorySSA allow reordering of two loads that may alias, when one is volatile. This makes MemorySSA less conservative and behaving the same as the AliasSetTracker. For more context, see D16875. LLVM language reference: "The optimizers must not change the number of volatile operations or change their order of execution relative to other volatile operations. The optimizers may change the order of volatile operations relative to non-volatile operations. This is not Java’s “volatile” and has no cross-thread synchronization behavior." Reviewers: george.burgess.iv, dberlin Subscribers: sanjoy, reames, hfinkel, llvm-commits, Prazek Differential Revision: https://reviews.llvm.org/D41525 llvm-svn: 321382 |
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| .. | ||
| assume.ll | ||
| atomic-clobber.ll | ||
| basicaa-memcpy.ll | ||
| constant-memory.ll | ||
| cyclicphi.ll | ||
| forward-unreachable.ll | ||
| function-clobber.ll | ||
| function-mem-attrs.ll | ||
| invariant-groups.ll | ||
| lifetime-simple.ll | ||
| load-invariant.ll | ||
| many-dom-backedge.ll | ||
| many-doms.ll | ||
| multi-edges.ll | ||
| multiple-backedges-hal.ll | ||
| multiple-locations.ll | ||
| no-disconnected.ll | ||
| optimize-use.ll | ||
| phi-translation.ll | ||
| pr28880.ll | ||
| ptr-const-mem.ll | ||
| volatile-clobber.ll | ||