Hi, The description of TREE_ADDRESSABLE macro in tree.h says:
"In ..._TYPE nodes, it means that objects of this type must be fully addressable. This means that pieces of this object cannot go into register parameters, for example." Yet the current tree-sra does not check this flag and happily scalarizes variables of such types, there are even tests in our regression testsuite that check whether such types are indeed reduced (such as g++.dg/tree-ssa/ssa-sra-1.C). Moreover, such types are very common in C++, the one in the testcase mentioned above is even quite simple. On a related note, is the assert in create_tmp_var() checking this addressability the requested type really necessary? Is the comment outdated? Or have we been somehow lucky all this time while ignoring a sensible requirement? Thanks, Martin
