[llvm] ed162d4 - [DAG] Avoid hasOneUse() calls if the cheaper !AssumeSingleUse test has already failed. NFC.

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2022-08-09T16:42:19+01:00
New Revision: ed162d455a6585a75290c60c934b2a514ac55747

URL: https://github.com/llvm/llvm-project/commit/ed162d455a6585a75290c60c934b2a514ac55747
DIFF: https://github.com/llvm/llvm-project/commit/ed162d455a6585a75290c60c934b2a514ac55747.diff

LOG: [DAG] Avoid hasOneUse() calls if the cheaper !AssumeSingleUse test has already failed. NFC.

Very minor optimization, but every little helps..

Added: 
    

Modified: 
    llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index afdbbd83b4ee..f4f952df6c02 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1107,7 +1107,7 @@ bool TargetLowering::SimplifyDemandedBits(
 
   // Other users may use these bits.
   bool HasMultiUse = false;
-  if (!Op.getNode()->hasOneUse() && !AssumeSingleUse) {
+  if (!AssumeSingleUse && !Op.getNode()->hasOneUse()) {
     if (Depth >= SelectionDAG::MaxRecursionDepth) {
       // Limit search depth.
       return false;
@@ -2827,7 +2827,7 @@ bool TargetLowering::SimplifyDemandedVectorElts(
   }
 
   // If Op has other users, assume that all elements are needed.
-  if (!Op.getNode()->hasOneUse() && !AssumeSingleUse)
+  if (!AssumeSingleUse && !Op.getNode()->hasOneUse())
     DemandedElts.setAllBits();
 
   // Not demanding any elements from Op.