[llvm] [MTE] generalize overalignment / size of MTE globals (PR #121957)

[Jessica Clarke via llvm-commits]

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@@ -2398,17 +2398,23 @@ void AsmPrinter::emitRemarksSection(remarks::RemarkStreamer &RS) {
   OutStreamer->emitBinaryData(Buf);
 }
 
-static void tagGlobalDefinition(Module &M, GlobalVariable *G) {
-  Constant *Initializer = G->getInitializer();
+static uint64_t globalSize(const GlobalVariable &G) {
+  const Constant *Initializer = G.getInitializer();
   uint64_t SizeInBytes =
-      M.getDataLayout().getTypeAllocSize(Initializer->getType());
+      G.getParent()->getDataLayout().getTypeAllocSize(Initializer->getType());
 
-  uint64_t NewSize = alignTo(SizeInBytes, 16);
-  if (SizeInBytes != NewSize) {
+  return SizeInBytes;
+}
+
+static void tagGlobalDefinition(GlobalVariable *G) {
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jrtc27 wrote:

Needs a more generic name

https://github.com/llvm/llvm-project/pull/121957