[Mlir-commits] [mlir] [mlir][spirv] Add support for SPV_ARM_graph extension - part 2 (PR #156665)

[Jakub Kuderski]

================
@@ -669,6 +669,200 @@ spirv::Deserializer::processFunctionEnd(ArrayRef<uint32_t> operands) {
   return success();
 }
 
+LogicalResult
+spirv::Deserializer::processGraphEntryPointARM(ArrayRef<uint32_t> operands) {
+  if (operands.size() < 2) {
+    return emitError(unknownLoc,
+                     "missing graph defintion in OpGraphEntryPointARM");
+  }
+
+  unsigned wordIndex = 0;
+  uint32_t grID = operands[wordIndex++];
+  if (!graphMap.count(grID)) {
+    return emitError(unknownLoc,
+                     "missing graph definition/declaration with id ")
+           << grID;
+  }
+
+  spirv::GraphARMOp graphARM = graphMap[grID];
+  StringRef name = decodeStringLiteral(operands, wordIndex);
+  graphARM.setSymName(name);
+  graphARM.setEntryPoint(true);
+
+  SmallVector<Attribute, 4> interface;
+  for (int64_t size = operands.size(); wordIndex < size; wordIndex++) {
+    if (spirv::GlobalVariableOp arg = getGlobalVariable(operands[wordIndex])) {
+      interface.push_back(SymbolRefAttr::get(arg.getOperation()));
+    } else {
+      return emitError(unknownLoc, "undefined result <id> ")
+             << operands[wordIndex] << " while decoding OpGraphEntryPoint";
+    }
+  }
+
+  // RAII guard to reset the insertion point to previous value when done.
+  OpBuilder::InsertionGuard insertionGuard(opBuilder);
+  opBuilder.setInsertionPoint(graphARM);
+  opBuilder.create<spirv::GraphEntryPointARMOp>(
+      unknownLoc, SymbolRefAttr::get(opBuilder.getContext(), name),
+      opBuilder.getArrayAttr(interface));
+
+  return success();
+}
+
+LogicalResult
+spirv::Deserializer::processGraphARM(ArrayRef<uint32_t> operands) {
+  if (curGraph) {
+    return emitError(unknownLoc, "found graph inside graph");
+  }
+  // Get the result type.
+  if (operands.size() < 2) {
+    return emitError(unknownLoc, "OpGraphARM must have at least 2 parameters");
+  }
+
+  Type type = getType(operands[0]);
+  if (!type || !isa<GraphType>(type)) {
+    return emitError(unknownLoc, "unknown graph type from <id> ")
+           << operands[0];
+  }
+  auto graphType = cast<GraphType>(type);
+  if (graphType.getNumResults() <= 0) {
+    return emitError(unknownLoc, "expected at least one result");
+  }
+
+  uint32_t grID = operands[1];
+  if (graphMap.count(grID)) {
----------------
kuhar wrote:

also here

https://github.com/llvm/llvm-project/pull/156665