minminsun commented on a change in pull request #6297:
URL: https://github.com/apache/incubator-tvm/pull/6297#discussion_r477112240
##########
File path: src/auto_scheduler/compute_dag.cc
##########
@@ -665,9 +666,349 @@ ComputeDAG::ComputeDAG(Array<te::Tensor> tensors) {
data_ = std::move(node);
}
+/*!
+ * \brief utility function for kernel_layout_transform
+ */
+inline void parse_kernel_layout(const String& layout, Array<PrimExpr>* shape,
+ std::vector<std::string>* axes) {
+ int32_t factor = 0;
+ std::string axis = "";
+ for (char c : std::string(layout)) {
+ if (c >= 'A' && c <= 'z') {
+ axis += c;
+ if (factor != 0) {
+ shape->push_back(factor);
+ factor = 0;
+ }
+ } else if (c >= '0' && c <= '9') {
+ factor = factor * 10 + c - '0';
+ if (!axis.empty()) {
+ axes->push_back(axis);
+ axis = "";
+ }
+ } else {
+ LOG(FATAL) << "Invalid layout " << layout;
+ }
+ }
+ if (!axis.empty()) {
+ axes->push_back(axis);
+ }
+}
+
+std::string BaseName(const std::string& str) { return str.substr(0,
str.rfind("_")); }
Review comment:
Done.
##########
File path: src/auto_scheduler/compute_dag.cc
##########
@@ -665,9 +666,349 @@ ComputeDAG::ComputeDAG(Array<te::Tensor> tensors) {
data_ = std::move(node);
}
+/*!
+ * \brief utility function for kernel_layout_transform
+ */
+inline void parse_kernel_layout(const String& layout, Array<PrimExpr>* shape,
+ std::vector<std::string>* axes) {
+ int32_t factor = 0;
+ std::string axis = "";
+ for (char c : std::string(layout)) {
+ if (c >= 'A' && c <= 'z') {
+ axis += c;
+ if (factor != 0) {
+ shape->push_back(factor);
+ factor = 0;
+ }
+ } else if (c >= '0' && c <= '9') {
+ factor = factor * 10 + c - '0';
+ if (!axis.empty()) {
+ axes->push_back(axis);
+ axis = "";
+ }
+ } else {
+ LOG(FATAL) << "Invalid layout " << layout;
+ }
+ }
+ if (!axis.empty()) {
+ axes->push_back(axis);
+ }
+}
+
+std::string BaseName(const std::string& str) { return str.substr(0,
str.rfind("_")); }
+
+class IndexRewriter : public StmtExprMutator {
+ public:
+ IndexRewriter(const te::Operation& placeholder_op, const std::string&
new_layout)
+ : placeholder_op_(placeholder_op), new_layout_(new_layout) {}
+
+ PrimExpr Rewrite(PrimExpr expr) { return this->VisitExpr(expr); }
+
+ PrimExpr VisitExpr_(const ProducerLoadNode* op) final {
+ te::Tensor t = Downcast<te::Tensor>(op->producer);
+ if (t->op == placeholder_op_) {
+ Array<PrimExpr> new_shape;
+ std::vector<std::string> new_names;
+ parse_kernel_layout(new_layout_, &new_shape, &new_names);
Review comment:
Done.
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