[llvm] f0ca0a3 - [CodeGen] Init EmptyExpr before the first use

[Vitaly Buka via llvm-commits]

Author: Vitaly Buka
Date: 2022-06-17T17:40:06-07:00
New Revision: f0ca0a324fd5d32285ec081616b01f23c8fc635b

URL: https://github.com/llvm/llvm-project/commit/f0ca0a324fd5d32285ec081616b01f23c8fc635b
DIFF: https://github.com/llvm/llvm-project/commit/f0ca0a324fd5d32285ec081616b01f23c8fc635b.diff

LOG: [CodeGen] Init EmptyExpr before the first use

Added: 
    

Modified: 
    llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
index 6735837ec98c..30ca8bd871e8 100644
--- a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
+++ b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp
@@ -3175,12 +3175,12 @@ bool InstrRefBasedLDV::ExtendRanges(MachineFunction &MF,
   assert(MaxNumBlocks >= 0);
   ++MaxNumBlocks;
 
+  initialSetup(MF);
+
   MLocTransfer.resize(MaxNumBlocks);
   vlocs.resize(MaxNumBlocks, VLocTracker(OverlapFragments, EmptyExpr));
   SavedLiveIns.resize(MaxNumBlocks);
 
-  initialSetup(MF);
-
   produceMLocTransferFunction(MF, MLocTransfer, MaxNumBlocks);
 
   // Allocate and initialize two array-of-arrays for the live-in and live-out