https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111029
--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by David Faust <dfa...@gcc.gnu.org>: https://gcc.gnu.org/g:489e1adf7792985b21195c740da7370f96b19640 commit r14-3227-g489e1adf7792985b21195c740da7370f96b19640 Author: David Faust <david.fa...@oracle.com> Date: Tue Aug 15 10:54:17 2023 -0700 bpf: fix pseudoc w regs for small modes [PR111029] In the BPF pseudo-c assembly dialect, registers treated as 32-bits rather than the full 64 in various instructions ought to be printed as "wN" rather than "rN". But bpf_print_register () was only doing this for specifically SImode registers, meaning smaller modes were printed incorrectly. This caused assembler errors like: Error: unrecognized instruction `w2 =(s8)r1' for a 32-bit sign-extending register move instruction, where the source register is used in QImode. Fix bpf_print_register () to print the "w" version of register when specified by the template for any mode 32-bits or smaller. PR target/111029 gcc/ * config/bpf/bpf.cc (bpf_print_register): Print 'w' registers for any mode 32-bits or smaller, not just SImode. gcc/testsuite/ * gcc.target/bpf/smov-2.c: New test. * gcc.target/bpf/smov-pseudoc-2.c: New test.
