https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127460
--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Dimitar Dimitrov <[email protected]>: https://gcc.gnu.org/g:0eea1e39af146d98d8bce3d93ede34ea13196899 commit r17-4467-g0eea1e39af146d98d8bce3d93ede34ea13196899 Author: Yongqiang Tian <[email protected]> Date: Fri Sep 18 23:03:54 2026 +1000 pru: Ignore debug insns when padding repeat loops [PR127460] pru_insert_loop_label_last walks backward over the final two opcodes of a repeat loop to determine how much padding to add. INSN_P also accepts debug instructions, so a surviving DEBUG_INSN can be treated as an unrecognized opcode and stop the walk early. This causes the function to add an extra NOP. Use NONDEBUG_INSN_P so debug instructions do not affect the opcode count. Add a regression test for the extra padding observed with -g -fno-var-tracking. Tested for pru-unknown-elf. The new test fails before the fix and passes after it. The complete PRU testsuite has no new failures. Also bootstrapped and regression-tested on x86_64-pc-linux-gnu with no new failures. gcc/ChangeLog: PR target/127460 * config/pru/pru.cc (pru_insert_loop_label_last): Ignore debug instructions while counting final loop opcodes. gcc/testsuite/ChangeLog: PR target/127460 * gcc.target/pru/pr127460.c: New test. Signed-off-by: Yongqiang Tian <[email protected]>
