[llvm] 674d3d7 - [ReachingDefs] make ReachingDefDefaultVal smaller

[Bing1 Yu via llvm-commits]

Author: Bing1 Yu
Date: 2023-04-13T16:19:49+08:00
New Revision: 674d3d7acceead99ac55117ab4451ae11e59262a

URL: https://github.com/llvm/llvm-project/commit/674d3d7acceead99ac55117ab4451ae11e59262a
DIFF: https://github.com/llvm/llvm-project/commit/674d3d7acceead99ac55117ab4451ae11e59262a.diff

LOG: [ReachingDefs] make ReachingDefDefaultVal smaller

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D148198

Added: 
    

Modified: 
    llvm/include/llvm/CodeGen/ReachingDefAnalysis.h

Removed: 
    


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diff  --git a/llvm/include/llvm/CodeGen/ReachingDefAnalysis.h b/llvm/include/llvm/CodeGen/ReachingDefAnalysis.h
index 5144548a2792..630f9dab2d1d 100644
--- a/llvm/include/llvm/CodeGen/ReachingDefAnalysis.h
+++ b/llvm/include/llvm/CodeGen/ReachingDefAnalysis.h
@@ -102,7 +102,7 @@ class ReachingDefAnalysis : public MachineFunctionPass {
   MBBReachingDefsInfo MBBReachingDefs;
 
   /// Default values are 'nothing happened a long time ago'.
-  const int ReachingDefDefaultVal = -(1 << 20);
+  const int ReachingDefDefaultVal = -(1 << 21);
 
   using InstSet = SmallPtrSetImpl<MachineInstr*>;
   using BlockSet = SmallPtrSetImpl<MachineBasicBlock*>;