[PATCH] D13255: [LAA] LLE 2/6: Fix a NoDep case that should be a Forward dependence
Adam Nemet via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 29 10:28:42 PDT 2015
anemet created this revision.
anemet added a reviewer: hfinkel.
anemet added a subscriber: llvm-commits.
When the dependence distance in zero then we have a loop-independent
dependence from the earlier to the later access.
No current client of LAA uses forward dependences so other than
potentially hitting the MaxDependences threshold earlier, this change
shouldn't affect anything right now.
This and the previous patch were tested together for compile-time
regression. None found in LNT/SPEC.
http://reviews.llvm.org/D13255
Files:
include/llvm/Analysis/LoopAccessAnalysis.h
lib/Analysis/LoopAccessAnalysis.cpp
test/Analysis/LoopAccessAnalysis/forward-loop-independent.ll
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