Merge branch 'master' into runtime

Author: qiao-bo

setup.py

@@ -64,6 +64,12 @@ def remove_tmp(taichi_dir):
 
 
 class EggInfo(egg_info):
+    def finalize_options(self, *args, **kwargs):
+        if '' not in self.distribution.package_dir:
+            # XXX: skbuild loses the root package dir
+            self.distribution.package_dir[''] = package_dir
+        return super().finalize_options(*args, **kwargs)
+
     def run(self):
         taichi_dir = os.path.join(package_dir, 'taichi')
         remove_tmp(taichi_dir)

taichi/transforms/lower_ast.cpp

@@ -156,7 +156,6 @@ class LowerAST : public IRVisitor {
     stmts->insert(
         std::make_unique<WhileControlStmt>(new_while->mask, cond_stmt),
         fctx.stmts.size());
-    stmt->insert_before_me(std::make_unique<AllocaStmt>(PrimitiveType::i32));
     auto &&const_stmt =
         std::make_unique<ConstStmt>(TypedConstant((int32)0xFFFFFFFF));
     auto const_stmt_ptr = const_stmt.get();