https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100464
--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:462900ba21f5fdf865c93f693083da3179dd3151 commit r11-9591-g462900ba21f5fdf865c93f693083da3179dd3151 Author: Richard Biener <rguent...@suse.de> Date: Fri May 7 09:51:18 2021 +0200 middle-end/100464 - avoid spurious TREE_ADDRESSABLE in folding debug stmts canonicalize_constructor_val was setting TREE_ADDRESSABLE on bases of ADDR_EXPRs but that's futile when we're dealing with CTOR values in debug stmts. This rips out the code which was added for Java and should have been an assertion when we didn't have debug stmts. To not regress g++.dg/tree-ssa/array-temp1.C we have to adjust the testcase to not look for a no longer applied invalid optimization. 2021-05-10 Richard Biener <rguent...@suse.de> PR middle-end/100464 PR c++/100468 gcc/ * gimple-fold.c (canonicalize_constructor_val): Do not set TREE_ADDRESSABLE. gcc/cp/ * call.c (set_up_extended_ref_temp): Mark the temporary addressable if the TARGET_EXPR was. gcc/testsuite/ * gcc.dg/pr100464.c: New testcase. * g++.dg/tree-ssa/array-temp1.C: Adjust. (cherry picked from commit a076632e274abe344ca7648b7c7f299273d4cbe0)