https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126221
--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Hu <[email protected]>: https://gcc.gnu.org/g:170fcbba4c97ea40750cc5c2fd0eb787311085f0 commit r17-2403-g170fcbba4c97ea40750cc5c2fd0eb787311085f0 Author: Hu, Lin1 <[email protected]> Date: Mon Jul 13 14:51:22 2026 +0800 middle-end: use tree mode for masked cbranch operand [PR126221] emit_cmp_and_jump_insns used GET_MODE (expand_normal (masked_op)) to select the mask mode. For vector boolean constants that expand to CONST_INT, this produces VOIDmode and triggers the assert mode != VOID_mode in maybe_legitimize_operand. Use TYPE_MODE (TREE_TYPE (masked_op)), so the constant can be materialized in the right mask mode. gcc/ChangeLog: PR middle-end/126203 PR middle-end/126221 PR middle-end/126232 * optabs.cc (emit_cmp_and_jump_insns): Take the masked_op mode from TREE_TYPE (masked_op). gcc/testsuite/ChangeLog: PR middle-end/126203 PR middle-end/126221 PR middle-end/126232 * gcc.target/i386/pr126221-1.c: New test. * gcc.target/i386/pr126221-2.c: Ditto. * gfortran.dg/pr126221.f90: Ditto.
