[PATCH] D39973: Fix CaptureTracking for llvm.invariant.group.barrier
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 13 14:52:22 PST 2017
arsenm added inline comments.
================
Comment at: lib/Analysis/CaptureTracking.cpp:244
+ if (CS.onlyReadsMemory() && CS.doesNotThrow() &&
+ (I->getType()->isVoidTy() || I->use_empty()))
break;
----------------
I don't understand the I->use_empty() check, or how this is related to the address space change
https://reviews.llvm.org/D39973
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