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Author SHA1 Message Date
Bryan Chan 3404add468 [EarlyCSE] Verify hash code in regression tests 
As discussed in D86843, -earlycse-debug-hash should be used in more regression
tests to catch inconsistency between the hashing and the equivalence check.

Differential Revision: https://reviews.llvm.org/D86863
 2020-09-04 10:40:35 -04:00
Alina Sbirlea 80c6e79602 [MemorySSA] LoopSimplify preserves MemorySSA only when flag is flipped. 
LoopSimplify can preserve MemorySSA after r360270.
But the MemorySSA analysis is retrieved and preserved only when the
EnableMSSALoopDependency is set to true. Use the same conditional to
mark the pass as preserved, otherwise subsequent passes will get an
invalid analysis.
Resolves PR41853.

llvm-svn: 360697
 2019-05-14 18:07:18 +00:00