https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94339
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:72809d6fe8e085440403ce125c51d01d6e7512b0 commit r10-7410-g72809d6fe8e085440403ce125c51d01d6e7512b0 Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Mar 27 10:00:47 2020 +0100 c++: Handle COMPOUND_EXPRs in ocp_convert [PR94339] My recent change to get_narrower/warnings_for_convert_and_check broke the following testcase, warnings_for_convert_and_check is upset that expr is a COMPOUND_EXPR with INTEGER_CST at the rightmost operand, while result is a COMPOUND_EXPR with a NOP_EXPR of INTEGER_CST at the rightmost operand, it expects such conversions to be simplified. The easiest fix seems to be to handle COMPOUND_EXPRs in ocp_convert too, by converting the rightmost operand and recreating COMPOUND_EXPR(s) if that changed. The attr-copy-2.C change is a workaround for PR94346, where we now ICE on the testcase, while previously we'd ICE only if it contained a comma expression at the outer level rather than cast of a COMPOUND_EXPR to something. I'll defer that to Martin. 2020-03-27 Jakub Jelinek <ja...@redhat.com> PR c++/94339 * cvt.c (ocp_convert): Handle COMPOUND_EXPR by recursion on the second operand and creating a new COMPOUND_EXPR if anything changed. * g++.dg/other/pr94339.C: New test. * g++.dg/ext/attr-copy-2.C: Comment out failing tests due to PR94346.
