https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108140
--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Kyrylo Tkachov <ktkac...@gcc.gnu.org>: https://gcc.gnu.org/g:849c3cf7b4189342b4a0df941afddf8327585570 commit r12-9037-g849c3cf7b4189342b4a0df941afddf8327585570 Author: Kyrylo Tkachov <kyrylo.tkac...@arm.com> Date: Mon Dec 19 11:16:47 2022 +0000 aarch64: PR target/108140 Handle NULL target in data intrinsic expansion In this PR we ICE when expanding the __rbit builtin with a NULL target rtx. I *think* that only happens when the result is unused and hence maybe we shouldn't be expanding any RTL at all, but the ICE here is easily fixed by deriving the mode from the type of the expression rather than the target. This patch does that. Bootstrapped and tested on aarch64-none-linux-gnu. gcc/ChangeLog: PR target/108140 * config/aarch64/aarch64-builtins.cc (aarch64_expand_builtin_data_intrinsic): Handle NULL target. gcc/testsuite/ChangeLog: PR target/108140 * gcc.target/aarch64/acle/pr108140.c: New test. (cherry picked from commit 98756bcbe27647f263f2b312d1d933d70cf56ba9)
