[ir] [refactor] Let the type of Alloca be pointer

ghstack-source-id: 790315984a78fee0410ed85c89229f2785027338
Pull Request resolved: #8007

python/taichi/lang/_ndrange.py

@@ -23,7 +23,7 @@ def __init__(self, *args):
         for arg in args:
             for bound in arg:
                 if not isinstance(bound, (int, np.integer)) and not (
-                    isinstance(bound, Expr) and is_integral(bound.ptr.get_ret_type())
+                    isinstance(bound, Expr) and is_integral(bound.ptr.get_rvalue_type())
                 ):
                     raise TaichiTypeError(
                         "Every argument of ndrange should be an integer scalar or a tuple/list of (int, int)"

python/taichi/lang/ast/ast_transformer.py

@@ -709,7 +709,7 @@ def transform_as_kernel():
                                 f"Argument {arg.arg} of type {ctx.func.arguments[i].annotation} is expected to be a Matrix, but got {type(data)}."
                             )
 
-                        element_shape = data.ptr.get_ret_type().shape()
+                        element_shape = data.ptr.get_rvalue_type().shape()
                         if len(element_shape) != ctx.func.arguments[i].annotation.ndim:
                             raise TaichiSyntaxError(
                                 f"Argument {arg.arg} of type {ctx.func.arguments[i].annotation} is expected to be a Matrix with ndim {ctx.func.arguments[i].annotation.ndim}, but got {len(element_shape)}."
@@ -1449,7 +1449,7 @@ def ti_format_list_to_assert_msg(raw):
             if isinstance(entry, str):
                 msg += entry
             elif isinstance(entry, _ti_core.Expr):
-                ty = entry.get_ret_type()
+                ty = entry.get_rvalue_type()
                 if ty in primitive_types.real_types:
                     msg += "%f"
                 elif ty in primitive_types.integer_types:

python/taichi/lang/matrix.py

@@ -133,7 +133,7 @@ def _infer_entry_dt(entry):
     if isinstance(entry, (float, np.floating)):
         return impl.get_runtime().default_fp
     if isinstance(entry, expr.Expr):
-        dt = entry.ptr.get_ret_type()
+        dt = entry.ptr.get_rvalue_type()
         if dt == ti_python_core.DataType_unknown:
             raise TaichiTypeError("Element type of the matrix cannot be inferred. Please set dt instead for now.")
         return dt
@@ -1412,7 +1412,7 @@ def __call__(self, *args):
             # Init from a real Matrix
             if isinstance(args[0], expr.Expr) and args[0].ptr.is_tensor():
                 arg = args[0]
-                shape = arg.ptr.get_ret_type().shape()
+                shape = arg.ptr.get_rvalue_type().shape()
                 assert self.ndim == len(shape)
                 assert self.n == shape[0]
                 if self.ndim > 1:
@@ -1554,7 +1554,7 @@ def __call__(self, *args):
             # Init from a real Matrix
             if isinstance(args[0], expr.Expr) and args[0].ptr.is_tensor():
                 arg = args[0]
-                shape = arg.ptr.get_ret_type().shape()
+                shape = arg.ptr.get_rvalue_type().shape()
                 assert len(shape) == 1
                 assert self.n == shape[0]
                 return expr.Expr(arg.ptr)

taichi/analysis/gen_offline_cache_key.cpp

@@ -12,23 +12,6 @@ namespace taichi::lang {
 
 namespace {
 
-enum class ExprOpCode : std::uint8_t {
-  NIL,
-#define PER_EXPRESSION(x) x,
-#include "taichi/inc/expressions.inc.h"
-#undef PER_EXPRESSION
-};
-
-enum class StmtOpCode : std::uint8_t {
-  NIL,
-  EnterBlock,
-  ExitBlock,
-  StopGrad,
-#define PER_STATEMENT(x) x,
-#include "taichi/inc/frontend_statements.inc.h"
-#undef PER_STATEMENT
-};
-
 enum class ForLoopType : std::uint8_t {
   StructForOnSNode,
   StructForOnExternalTensor,
@@ -198,6 +181,7 @@ class ASTSerializer : public IRVisitor, public ExpressionVisitor {
   void visit(IdExpression *expr) override {
     emit(ExprOpCode::IdExpression);
     emit(expr->id);
+    emit(expr->op);
   }
 
   void visit(AtomicOpExpression *expr) override {

taichi/codegen/cuda/codegen_cuda.cpp

@@ -172,8 +172,8 @@ class TaskCodeGenCUDA : public TaskCodeGenLLVM {
 
   void visit(AllocaStmt *stmt) override {
     // Override shared memory codegen logic for large shared memory
-    if (stmt->ret_type->is<TensorType>() && stmt->is_shared) {
-      auto tensor_type = stmt->ret_type->cast<TensorType>();
+    auto tensor_type = stmt->ret_type.ptr_removed()->cast<TensorType>();
+    if (tensor_type && stmt->is_shared) {
       size_t shared_array_bytes =
           tensor_type->get_num_elements() *
           data_type_size(tensor_type->get_element_type());

taichi/codegen/llvm/codegen_llvm.cpp

@@ -126,8 +126,10 @@ void TaskCodeGenLLVM::visit(Block *stmt_list) {
 }
 
 void TaskCodeGenLLVM::visit(AllocaStmt *stmt) {
-  if (stmt->ret_type->is<TensorType>()) {
-    auto tensor_type = stmt->ret_type->cast<TensorType>();
+  TI_ASSERT(stmt->ret_type.is_pointer());
+  auto alloca_type = stmt->ret_type->as<PointerType>()->get_pointee_type();
+  if (alloca_type->is<TensorType>()) {
+    auto tensor_type = alloca_type->cast<TensorType>();
     auto type = tlctx->get_data_type(tensor_type);
     if (stmt->is_shared) {
       auto base = new llvm::GlobalVariable(
@@ -141,12 +143,10 @@ void TaskCodeGenLLVM::visit(AllocaStmt *stmt) {
       llvm_val[stmt] = create_entry_block_alloca(type);
     }
   } else {
-    llvm_val[stmt] =
-        create_entry_block_alloca(stmt->ret_type, stmt->ret_type.is_pointer());
+    llvm_val[stmt] = create_entry_block_alloca(alloca_type);
     // initialize as zero if element is not a pointer
-    if (!stmt->ret_type.is_pointer())
-      builder->CreateStore(tlctx->get_constant(stmt->ret_type, 0),
-                           llvm_val[stmt]);
+    if (!alloca_type->is<PointerType>())
+      builder->CreateStore(tlctx->get_constant(alloca_type, 0), llvm_val[stmt]);
   }
 }
 
@@ -878,6 +878,7 @@ void TaskCodeGenLLVM::visit(IfStmt *if_stmt) {
       llvm::BasicBlock::Create(*llvm_context, "false_block", func);
   llvm::BasicBlock *after_if =
       llvm::BasicBlock::Create(*llvm_context, "after_if", func);
+  llvm_val[if_stmt->cond]->dump();
   llvm::Value *cond = builder->CreateIsNotNull(llvm_val[if_stmt->cond]);
   builder->CreateCondBr(cond, true_block, false_block);
   builder->SetInsertPoint(true_block);
@@ -1310,6 +1311,9 @@ void TaskCodeGenLLVM::visit(LocalLoadStmt *stmt) {
 }
 
 void TaskCodeGenLLVM::visit(LocalStoreStmt *stmt) {
+  //  irpass::print(stmt);
+  //  llvm_val[stmt->val]->dump();
+  //  llvm_val[stmt->dest]->dump();
   builder->CreateStore(llvm_val[stmt->val], llvm_val[stmt->dest]);
 }
 

taichi/codegen/llvm/llvm_codegen_utils.h

@@ -83,8 +83,8 @@ class LLVMModuleBuilder {
 
   llvm::Value *create_entry_block_alloca(DataType dt, bool is_pointer = false) {
     auto type = tlctx->get_data_type(dt);
-    if (is_pointer)
-      type = llvm::PointerType::get(type, 0);
+    //    if (is_pointer)
+    //      type = llvm::PointerType::get(type, 0);
     return create_entry_block_alloca(type);
   }
 

taichi/codegen/spirv/spirv_codegen.cpp

@@ -274,8 +274,8 @@ class TaskCodegen : public IRVisitor {
 
   void visit(AllocaStmt *alloca) override {
     spirv::Value ptr_val;
-    if (alloca->ret_type->is<TensorType>()) {
-      auto tensor_type = alloca->ret_type->cast<TensorType>();
+    auto alloca_type = alloca->ret_type->as<PointerType>()->get_pointee_type();
+    if (auto tensor_type = alloca_type->cast<TensorType>()) {
       auto elem_num = tensor_type->get_num_elements();
       spirv::SType elem_type =
           ir_->get_primitive_type(tensor_type->get_element_type());
@@ -288,7 +288,7 @@ class TaskCodegen : public IRVisitor {
       }
     } else {
       // Alloca for a single variable
-      spirv::SType src_type = ir_->get_primitive_type(alloca->element_type());
+      spirv::SType src_type = ir_->get_primitive_type(alloca_type);
       ptr_val = ir_->alloca_variable(src_type);
       ir_->store_variable(ptr_val, ir_->get_zero(src_type));
     }

taichi/ir/control_flow_graph.cpp

@@ -247,7 +247,7 @@ Stmt *CFGNode::get_store_forwarding_data(Stmt *var, int position) const {
     // result: the value to store
     Stmt *result = irpass::analysis::get_store_data(
         block->statements[last_def_position].get());
-    bool is_tensor_involved = var->ret_type->is<TensorType>();
+    bool is_tensor_involved = var->ret_type.ptr_removed()->is<TensorType>();
     if (!(var->is<AllocaStmt>() && !is_tensor_involved)) {
       // In between the store stmt and current stmt,
       // if there's a third-stmt that "may" have stored a "different value" to
@@ -355,7 +355,7 @@ Stmt *CFGNode::get_store_forwarding_data(Stmt *var, int position) const {
 
   // Check for aliased address
   // There's a store to the same dest_addr before this stmt
-  bool is_tensor_involved = var->ret_type->is<TensorType>();
+  bool is_tensor_involved = var->ret_type.ptr_removed()->is<TensorType>();
   if (!(var->is<AllocaStmt>() && !is_tensor_involved)) {
     // In between the store stmt and current stmt,
     // if there's a third-stmt that "may" have stored a "different value" to
@@ -440,7 +440,8 @@ bool CFGNode::store_to_load_forwarding(bool after_lower_access,
           continue;
 
         // special case of alloca (initialized to 0)
-        auto zero = Stmt::make<ConstStmt>(TypedConstant(result->ret_type, 0));
+        auto zero = Stmt::make<ConstStmt>(
+            TypedConstant(result->ret_type.ptr_removed(), 0));
         replace_with(i, std::move(zero), true);
       } else {
         if (result->ret_type.ptr_removed()->is<TensorType>() &&

taichi/ir/expression_printer.h

@@ -76,11 +76,11 @@ class ExpressionHumanFriendlyPrinter : public ExpressionPrinter {
   }
 
   void visit(TernaryOpExpression *expr) override {
-    emit(ternary_type_name(expr->type), '(');
+    emit(ternary_type_name(expr->type), "(op1: ");
     expr->op1->accept(this);
-    emit(' ');
+    emit(", op2: ");
     expr->op2->accept(this);
-    emit(' ');
+    emit(", op3: ");
     expr->op3->accept(this);
     emit(')');
   }
@@ -125,6 +125,7 @@ class ExpressionHumanFriendlyPrinter : public ExpressionPrinter {
   }
 
   void visit(IndexExpression *expr) override {
+    emit("<" + expr->ret_type->to_string() + ">");
     expr->var->accept(this);
     emit('[');
     if (expr->ret_shape.empty()) {
@@ -164,7 +165,10 @@ class ExpressionHumanFriendlyPrinter : public ExpressionPrinter {
   }
 
   void visit(IdExpression *expr) override {
+    emit("<" + expr->ret_type->to_string() + ">");
     emit(expr->id.name());
+    emit(": ");
+    emit(to_string(expr->op));
   }
 
   void visit(AtomicOpExpression *expr) override {
@@ -251,6 +255,13 @@ class ExpressionHumanFriendlyPrinter : public ExpressionPrinter {
     return oss.str();
   }
 
+  static std::string expr_to_string(Expression *expr) {
+    std::ostringstream oss;
+    ExpressionHumanFriendlyPrinter printer(&oss);
+    expr->accept(&printer);
+    return oss.str();
+  }
+
  protected:
   template <typename... Args>
   void emit(Args &&...args) {