[Bug c++/100468] set_up_extended_ref_temp via extend_ref_init_temps_1 drops TREE_ADDRESSABLE
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Feb 18 09:29:12 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100468
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:462900ba21f5fdf865c93f693083da3179dd3151
commit r11-9591-g462900ba21f5fdf865c93f693083da3179dd3151
Author: Richard Biener <rguenther@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 <rguenther@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)
More information about the Gcc-bugs
mailing list