[BUGFIX] Fix for quantize. (#2573)

python/tvm/autotvm/task/relay_integration.py

@@ -31,8 +31,6 @@ def extract_from_program(func, params, ops, target, target_host=None):
         The associated parameters of the program
     ops: List of relay op
         List of relay ops to be tuned
-    dtype: str or dict of str to str
-        The input types to the program
     target: tvm.target.Target
         The compilation target
     target_host: tvm.target.Target

src/relay/pass/quantize.cc

@@ -231,7 +231,7 @@ Expr QuantizeRealize(const Call& ref_call,
   return QRealizeIntExprNode::make(round_data, dom_scale, Float(32));
 }
 
-RELAY_REGISTER_OP("simulated_quantize")
+RELAY_REGISTER_OP("relay.op.annotation.simulated_quantize")
 .set_attr<FForwardRewrite>("FQRealizeRewrite", QuantizeRealize);
 
 
@@ -350,7 +350,6 @@ Array<Expr> UnifyDTypeScale(const Array<Expr>& args,
   Expr dom_scale = MakeConstantScalar(Float(32), s);
   for (size_t i = 0; i < ret.size(); ++i) {
     float cur_s = GetScalarFromConstant<float>(nptrs[i]->dom_scale);
-    LOG(INFO) << "unify data scale from " << cur_s << " to " << s;
     ret.Set(i, MulAndDiv(ret[i], cur_s, s));
   }
 
@@ -504,7 +503,7 @@ void QConfig::ExitQConfigScope() {
   entry->context_stack.pop();
 }
 
-QConfig QConfig::Current() {
+QConfig& QConfig::Current() {
   TVMQConfigThreadLocalEntry *entry = TVMQConfigThreadLocalStore::Get();
   if (entry->context_stack.size() > 0) {
     return entry->context_stack.top();

src/relay/pass/quantize.h

@@ -162,7 +162,7 @@ class QConfig : public NodeRef {
    * configuration if a BuildConfig scope has not been entered.
    * \return The configuration that is the current context.
    */
-  static QConfig Current();
+  static QConfig& Current();
 
   using ContainerType = QConfigNode;
 };