https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114921
--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:98fe2ae8afa5dea19034d48876011a636dc23043 commit r13-9391-g98fe2ae8afa5dea19034d48876011a636dc23043 Author: Richard Biener <rguent...@suse.de> Date: Thu May 2 13:55:15 2024 +0200 tree-optimization/114921 - _Float16 -> __bf16 isn't noop The vectorizer handles a _Float16 to __bf16 conversion through vectorizable_assignment, thinking it's a noop. The following fixes this by requiring the same vector component mode when checking for CONVERT_EXPR_CODE_P, being stricter than for VIEW_CONVERT_EXPR. PR tree-optimization/114921 * tree-vect-stmts.cc (vectorizable_assignment): Require same vector component modes for input and output for CONVERT_EXPR_CODE_P. (cherry picked from commit 87e35da16df74cd1c4729a55d94e7bc592487f48)
