[llvm] 03b529a - [ValueTracking] Use switch for Intrinsics in `isKnownToBePowerOfTwo`; NFC

[Noah Goldstein via llvm-commits]

Author: Noah Goldstein
Date: 2023-08-09T14:42:54-05:00
New Revision: 03b529a2a6ca685be6244b52232d1dae4f02c6a5

URL: https://github.com/llvm/llvm-project/commit/03b529a2a6ca685be6244b52232d1dae4f02c6a5
DIFF: https://github.com/llvm/llvm-project/commit/03b529a2a6ca685be6244b52232d1dae4f02c6a5.diff

LOG: [ValueTracking] Use switch for Intrinsics in `isKnownToBePowerOfTwo`; NFC

Differential Revision: https://reviews.llvm.org/D157305

Added: 
    

Modified: 
    llvm/lib/Analysis/ValueTracking.cpp

Removed: 
    


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diff  --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 794c1100a017be..2cdfbdfb825f53 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -2122,11 +2122,20 @@ bool isKnownToBeAPowerOfTwo(const Value *V, bool OrZero, unsigned Depth,
       return isKnownToBeAPowerOfTwo(U.get(), OrZero, NewDepth, RecQ);
     });
   }
+  case Instruction::Invoke:
   case Instruction::Call: {
-    Value *X, *Y;
-    if (match(I, m_MaxOrMin(m_Value(X), m_Value(Y))))
-      return isKnownToBeAPowerOfTwo(X, OrZero, Depth, Q) &&
-             isKnownToBeAPowerOfTwo(Y, OrZero, Depth, Q);
+    if (auto *II = dyn_cast<IntrinsicInst>(I)) {
+      switch (II->getIntrinsicID()) {
+      case Intrinsic::umax:
+      case Intrinsic::smax:
+      case Intrinsic::umin:
+      case Intrinsic::smin:
+        return isKnownToBeAPowerOfTwo(II->getArgOperand(1), OrZero, Depth, Q) &&
+               isKnownToBeAPowerOfTwo(II->getArgOperand(0), OrZero, Depth, Q);
+      default:
+        break;
+      }
+    }
     return false;
   }
   default: