[llvm] d9bf79f - [Attributor][FIX] Add a missing dependence track in noalias deduction

[Hideto Ueno via llvm-commits]

Author: Hideto Ueno
Date: 2020-03-12T15:27:35Z
New Revision: d9bf79f4e9952acca1fa353e39bcee89cd69550f

URL: https://github.com/llvm/llvm-project/commit/d9bf79f4e9952acca1fa353e39bcee89cd69550f
DIFF: https://github.com/llvm/llvm-project/commit/d9bf79f4e9952acca1fa353e39bcee89cd69550f.diff

LOG: [Attributor][FIX] Add a missing dependence track in noalias deduction

Added: 
    

Modified: 
    llvm/lib/Transforms/IPO/Attributor.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/IPO/Attributor.cpp b/llvm/lib/Transforms/IPO/Attributor.cpp
index d0bd1cc6692c..0cecfd4461d4 100644
--- a/llvm/lib/Transforms/IPO/Attributor.cpp
+++ b/llvm/lib/Transforms/IPO/Attributor.cpp
@@ -2812,6 +2812,8 @@ struct AANoAliasCallSiteArgument final : AANoAliasImpl {
       return false;
     }
 
+    A.recordDependence(NoAliasAA, *this, DepClassTy::OPTIONAL);
+
     const IRPosition &VIRP = IRPosition::value(getAssociatedValue());
     auto &NoCaptureAA =
         A.getAAFor<AANoCapture>(*this, VIRP, /* TrackDependence */ false);