[llvm] 7d4ea77 - [SDAG] Use index type size for offset accumulation

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2025-04-04T15:59:19+02:00
New Revision: 7d4ea771c4817bdb042ebc6a2aa35f877785edcf

URL: https://github.com/llvm/llvm-project/commit/7d4ea771c4817bdb042ebc6a2aa35f877785edcf
DIFF: https://github.com/llvm/llvm-project/commit/7d4ea771c4817bdb042ebc6a2aa35f877785edcf.diff

LOG: [SDAG] Use index type size for offset accumulation

This is a precondition of the API. Not testable with in-tree
targets.

Fixes https://github.com/llvm/llvm-project/issues/134008.

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 63ee2d78cfa1b..1287d6ed4a764 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1564,7 +1564,7 @@ static bool processDbgDeclare(FunctionLoweringInfo &FuncInfo,
 
   // Look through casts and constant offset GEPs. These mostly come from
   // inalloca.
-  APInt Offset(DL.getTypeSizeInBits(Address->getType()), 0);
+  APInt Offset(DL.getIndexTypeSizeInBits(Address->getType()), 0);
   Address = Address->stripAndAccumulateInBoundsConstantOffsets(DL, Offset);
 
   // Check if the variable is a static alloca or a byval or inalloca