https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114848
--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by LuluCheng <chengl...@gcc.gnu.org>: https://gcc.gnu.org/g:bb78099d2624b52c781ed6e5d85e43d54c3cda1a commit r12-10403-gbb78099d2624b52c781ed6e5d85e43d54c3cda1a Author: Yang Yujie <yangyu...@loongson.cn> Date: Fri Dec 8 18:01:18 2023 +0800 LoongArch: Fix eh_return epilogue for normal returns. On LoongArch, the regitsters $r4 - $r7 (EH_RETURN_DATA_REGNO) will be saved and restored in the function prologue and epilogue if the given function calls __builtin_eh_return. This causes the return value to be overwritten on normal return paths and breaks a rare case of libgcc's _Unwind_RaiseException. gcc/ChangeLog: PR target/114848 * config/loongarch/loongarch.cc: Do not restore the saved eh_return data registers ($r4-$r7) for a normal return of a function that calls __builtin_eh_return elsewhere. * config/loongarch/loongarch-protos.h: Same. * config/loongarch/loongarch.md: Same. gcc/testsuite/ChangeLog: * gcc.target/loongarch/eh_return-normal-return.c: New test. (cherry picked from commit 4b421728289e6f1caa0dfaa953a11698ab95d37d)
