[PATCH] D75397: [ValueTracking] Let getGuaranteedNonFullPoisonOp consider assume, remove mentioning about br

[Juneyoung Lee via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG644e74768172: [ValueTracking] Let getGuaranteedNonFullPoisonOp consider assume, remove… (authored by aqjune).

Changed prior to commit:
  https://reviews.llvm.org/D75397?vs=247405&id=247467#toc

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D75397/new/

https://reviews.llvm.org/D75397

Files:
  llvm/lib/Analysis/ValueTracking.cpp


Index: llvm/lib/Analysis/ValueTracking.cpp
===================================================================
--- llvm/lib/Analysis/ValueTracking.cpp
+++ llvm/lib/Analysis/ValueTracking.cpp
@@ -4708,11 +4708,18 @@
     case Instruction::SRem:
       return I->getOperand(1);
 
+    case Instruction::Call:
+      if (auto *II = dyn_cast<IntrinsicInst>(I)) {
+        switch (II->getIntrinsicID()) {
+        case Intrinsic::assume:
+          return II->getArgOperand(0);
+        default:
+          return nullptr;
+        }
+      }
+      return nullptr;
+
     default:
-      // Note: It's really tempting to think that a conditional branch or
-      // switch should be listed here, but that's incorrect.  It's not
-      // branching off of poison which is UB, it is executing a side effecting
-      // instruction which follows the branch.
       return nullptr;
   }
 }


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