[clang] [llvm] [MTE] Apply alignment / size in AsmPrinter rather than IR (PR #111918)

[Florian Mayer via cfe-commits]

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@@ -764,11 +764,18 @@ void AsmPrinter::emitGlobalVariable(const GlobalVariable *GV) {
 
   const DataLayout &DL = GV->getDataLayout();
   uint64_t Size = DL.getTypeAllocSize(GV->getValueType());
+  if (GV->isTagged())
+    Size = alignTo(Size, 16);
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fmayer wrote:

We don't need the padding to be initialized to anything in particular, the code shouldn't use it (other than its tag memory)

https://github.com/llvm/llvm-project/pull/111918