[llvm] 89c37fe - [WPD] Use getSigned() for offset

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2025-12-12T11:15:44+01:00
New Revision: 89c37fee25b033c89458088978d6298983a87683

URL: https://github.com/llvm/llvm-project/commit/89c37fee25b033c89458088978d6298983a87683
DIFF: https://github.com/llvm/llvm-project/commit/89c37fee25b033c89458088978d6298983a87683.diff

LOG: [WPD] Use getSigned() for offset

This offset is a signed int64_t which can take negative values.

Added: 
    

Modified: 
    llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
index 7aa90eefd0d96..241566d5e22e0 100644
--- a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
+++ b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
@@ -2017,7 +2017,7 @@ bool DevirtModule::tryVirtualConstProp(
     }
 
     // Rewrite each call to a load from OffsetByte/OffsetBit.
-    Constant *ByteConst = ConstantInt::get(Int32Ty, OffsetByte);
+    Constant *ByteConst = ConstantInt::getSigned(Int32Ty, OffsetByte);
     Constant *BitConst = ConstantInt::get(Int8Ty, 1ULL << OffsetBit);
     applyVirtualConstProp(CSByConstantArg.second,
                           TargetsForSlot[0].Fn->getName(), ByteConst, BitConst);