[GENERAL] Merged v1.0alpha into master. Added features are:

- A100 support via mma.16816
- Thread swizzling for conflict-free shared memory accesses without
padding
- Complete overhaul of the LLVM code generation in
codegen/selection/generator.cc to remove overengineering
- Added debugging capabilities in the Python binding
- Compilation error for kernels that spill

lib/lang/code_gen.cc

@@ -56,10 +56,13 @@ void Generator::VisitBinaryOp(BinaryOp* binary) {
       return set_ret(bld_->create_dot(lhs, rhs, _0));
     }
     case Token::MASKED_DEREF: {
+      // TODO: FIXME
       ir::type* ret_ty = GenIRType(binary->Type(), *ctx_);
       ir::value* false_value = ir::undef_value::get(ret_ty->get_scalar_ty());
+      auto it = bld_->get_insert_block();
       if(ret_ty->is_tile_ty())
         false_value = bld_->create_splat(false_value, ret_ty->get_tile_shapes());
+      bld_->set_insert_point(it);
       return set_ret(bld_->create_masked_load(rhs, lhs, false_value));
     }
     case Token::ELLIPSIS: {
@@ -274,9 +277,7 @@ void Generator::VisitConditionalOp(ConditionalOp* condOp) {
   if(ir::unmasked_load_inst* ld = dynamic_cast<ir::unmasked_load_inst*>(true_val)) {
     if(true_val->get_type()->is_tile_ty() && !false_val->get_type()->is_tile_ty())
       false_val = bld_->create_splat(false_val, cond->get_type()->get_tile_shapes());
-    ir::value* new_ld = bld_->create_masked_load(ld->get_pointer_operand(),
-                                                  cond,
-                                                  false_val);
+    ir::value* new_ld = bld_->create_masked_load(ld->get_pointer_operand(),  cond, false_val);
     ld->replace_all_uses_with(new_ld);
     ld->erase_from_parent();
     return set_ret(new_ld);
@@ -468,10 +469,10 @@ void Generator::VisitForStmt(ForStmt *forStmt) {
   });
   if(init_)
     VisitStmt(init_);
-//  VisitExpr(cond_);
-//  ir::value *cond = ret_;
-//  bld_->create_cond_br(cond, loop_bb, next_bb);
-  bld_->create_br(loop_bb);
+  VisitExpr(cond_);
+  ir::value *cond = ret_;
+  bld_->create_cond_br(cond, loop_bb, next_bb);
+//  bld_->create_br(loop_bb);
   bld_->set_insert_point(loop_bb);
   if(body_)
     VisitStmt(body_);