https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118207
--- Comment #8 from GCC 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:65c8fd7b017482c6d6bd0c7a7c6e296f016e38d0 commit r15-6452-g65c8fd7b017482c6d6bd0c7a7c6e296f016e38d0 Author: Jakub Jelinek <ja...@redhat.com> Date: Sat Dec 28 15:42:56 2024 +0100 gimple-fold: Fix up fold_array_ctor_reference RAW_DATA_CST handling [PR118207] The following testcases ICE because fold_array_ctor_reference in the RAW_DATA_CST handling just return build_int_cst without actually checking that if type is non-NULL, TREE_TYPE (val) is uselessly convertible to it. By falling through the code after it without *suboff += we get everything we need, the two if conditionals will never be true (we've already checked that size == BITS_PER_UNIT and so can't be 0, and val will be INTEGER_CST), but it will do the important fold_ctor_reference call which will deal with type incompatibilities. 2024-12-28 Jakub Jelinek <ja...@redhat.com> PR tree-optimization/118207 * gimple-fold.cc (fold_array_ctor_reference): For RAW_DATA_CST, just set val to build_int_cst and fall through to the normal element handling code instead of returning build_int_cst right away. * gcc.dg/pr118207.c: New test.