Cast record size to uint64 to prevent overflow

HendrikHuebner · HendrikHuebner · commit 393202b15d68 · 2025-11-11T16:50:55.000+01:00
diff --git a/clang/lib/CIR/Dialect/IR/CIRTypes.cpp b/clang/lib/CIR/Dialect/IR/CIRTypes.cpp
@@ -341,7 +341,7 @@ RecordType::getTypeSizeInBits(const mlir::DataLayout &dataLayout,
   if (isUnion())
     return dataLayout.getTypeSize(getLargestMember(dataLayout));
 
-  unsigned recordSize = computeStructSize(dataLayout);
+  auto recordSize = static_cast<uint64_t>(computeStructSize(dataLayout));
   return llvm::TypeSize::getFixed(recordSize * 8);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -341,7 +341,7 @@ RecordType::getTypeSizeInBits(const mlir::DataLayout &dataLayout,`
`341`	`341`	`if (isUnion())`
`342`	`342`	`return dataLayout.getTypeSize(getLargestMember(dataLayout));`
`343`	`343`
`344`		`- unsigned recordSize = computeStructSize(dataLayout);`
	`344`	`+ auto recordSize = static_cast<uint64_t>(computeStructSize(dataLayout));`
`345`	`345`	`return llvm::TypeSize::getFixed(recordSize * 8);`
`346`	`346`	`}`
`347`	`347`