https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99136
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:884f790b8414e377665706f51254e8bd49a72f0b commit r9-9422-g884f790b8414e377665706f51254e8bd49a72f0b Author: Jakub Jelinek <ja...@redhat.com> Date: Thu Feb 18 22:17:52 2021 +0100 c: Fix ICE with -fexcess-precision=standard [PR99136] The following testcase ICEs on i686-linux, because c_finish_return wraps c_fully_folded retval back into EXCESS_PRECISION_EXPR, but when the function return type is void, we don't call convert_for_assignment on it that would then be fully folded again, but just put the retval into RETURN_EXPR's operand, so nothing removes it anymore and during gimplification we ICE as EXCESS_PRECISION_EXPR is not handled. This patch fixes it by not adding that EXCESS_PRECISION_EXPR in functions returning void, the return value is ignored and all we need is evaluate any side-effects of the expression. 2021-02-18 Jakub Jelinek <ja...@redhat.com> PR c/99136 * c-typeck.c (c_finish_return): Don't wrap retval into EXCESS_PRECISION_EXPR in functions that return void. * gcc.dg/pr99136.c: New test. (cherry picked from commit 3d7ce7ce6c03165ca1041b38e02428c925254968)
