[llvm] [LLVM-Tablegen] Pretty Printing Arguments in LLVM Intrinsics (PR #162629)

[Rahul Joshi via llvm-commits]

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@@ -805,6 +815,72 @@ AttributeSet Intrinsic::getFnAttributes(LLVMContext &C, ID id) {{
                 NoFunctionAttrsID);
 }
 
+void IntrinsicEmitter::EmitIntrinsicToPrettyPrintTable(
+    const CodeGenIntrinsicTable &Ints, raw_ostream &OS) {
+  OS << R"(// Intrinsic ID to pretty print bitset.
+)"
+        R"(#ifdef GET_INTRINSIC_PRETTY_PRINT_TABLE
+static constexpr uint8_t PPTable[] = {
+  0
+  )";
+  int CountPerLine = 0;
+  for (auto [I, Int] : enumerate(Ints)) {
+    size_t Idx = I + 1;
+
+    if (Idx % 8 == 0) {
+      OS << ",  0";
+      CountPerLine++;
+      if (CountPerLine == 8) {
+        OS << "\n  ";
+        CountPerLine = 0;
+      }
+    }
+    if (!Int.PrettyPrintFunctions.empty())
+      OS << " | (1<<" << Idx % 8 << ')';
+  }
+  OS << "\n};\n\n";
+  OS << "return (PPTable[id/8] & (1 << (id%8))) != 0;\n";
+  OS << "#endif // GET_INTRINSIC_PRETTY_PRINT_TABLE\n\n";
+}
+
+void IntrinsicEmitter::EmitPrettyPrintArguments(
+    const CodeGenIntrinsicTable &Ints, raw_ostream &OS) {
+  OS << R"(
+#ifdef GET_INTRINSIC_PRETTY_PRINT_ARGUMENTS
+
+void Intrinsic::printImmArg(ID IID, unsigned ArgIdx, raw_ostream &OS, const Constant *ImmArgVal) {
+  using namespace Intrinsic;
+  switch (IID) {
+)";
+
+  for (const auto &Int : Ints) {
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jurahul wrote:

nit: use actual type here

https://github.com/llvm/llvm-project/pull/162629