[clang] [llvm] [NVPTX] Add NVVMUpgradeAnnotations pass to cleanup legacy annotations (PR #119261)

[Alex MacLean via cfe-commits]

================
@@ -5022,6 +5022,69 @@ bool llvm::UpgradeDebugInfo(Module &M) {
   return Modified;
 }
 
+bool static upgradeSingleNVVMAnnotation(GlobalValue *GV, StringRef K,
+                                        const Metadata *V) {
+  if (K == "kernel") {
+    assert(mdconst::extract<ConstantInt>(V)->getZExtValue() == 1);
+    cast<Function>(GV)->addFnAttr("nvvm.kernel");
+    return true;
+  }
+  if (K == "align") {
+    const uint64_t AlignBits = 
mdconst::extract<ConstantInt>(V)->getZExtValue();
+    const unsigned Idx = (AlignBits >> 16);
+    const Align StackAlign = Align(AlignBits & 0xFFFF);
----------------
AlexMaclean wrote:

Fixed

https://github.com/llvm/llvm-project/pull/119261
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