https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88309
--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Kewen Lin <li...@gcc.gnu.org>: https://gcc.gnu.org/g:43c8cb0e003996b3a7a9f98923f602561f3f0ec7 commit r12-10393-g43c8cb0e003996b3a7a9f98923f602561f3f0ec7 Author: Kewen Lin <li...@linux.ibm.com> Date: Mon Apr 8 21:01:36 2024 -0500 rs6000: Fix wrong align passed to build_aligned_type [PR88309] As the comments in PR88309 show, there are two oversights in rs6000_gimple_fold_builtin that pass align in bytes to build_aligned_type but which actually requires align in bits, it causes unexpected ICE or hanging in function is_miss_rate_acceptable due to zero align_unit value. This patch is to fix them by converting bytes to bits, add an assertion on positive align_unit value and notes function build_aligned_type requires align measured in bits in its function comment. PR target/88309 Co-authored-by: Andrew Pinski <quic_apin...@quicinc.com> gcc/ChangeLog: * config/rs6000/rs6000-builtin.cc (rs6000_gimple_fold_builtin): Fix wrong align passed to function build_aligned_type. * tree-ssa-loop-prefetch.cc (is_miss_rate_acceptable): Add an assertion to ensure align_unit should be positive. * tree.cc (build_qualified_type): Update function comments. gcc/testsuite/ChangeLog: * gcc.target/powerpc/pr88309.c: New test.
