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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/113233] LoongArch: target options from LTO objects not
 respected during linking
Date: Tue, 09 Apr 2024 09:03:41 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113233

--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by LuluCheng <chenglulu@gcc.gnu.org>:

https://gcc.gnu.org/g:8657d76d583f0f87000e9003ba75922f2bbe4455

commit r14-9866-g8657d76d583f0f87000e9003ba75922f2bbe4455
Author: Yang Yujie <yangyujie@loongson.cn>
Date:   Mon Apr 8 16:45:13 2024 +0800

    LoongArch: Enable switchable target

    This patch fixes the back-end context switching in cases where functions
    should be built with their own target contexts instead of the
    global one, such as LTO linking and functions with target attributes (T=
BD).

            PR target/113233

    gcc/ChangeLog:

            * config/loongarch/loongarch.cc (loongarch_reg_init):
            Reinitialize the loongarch_regno_mode_ok cache.
            (loongarch_option_override): Same.
            (loongarch_save_restore_target_globals): Restore target globals.
            (loongarch_set_current_function): Restore the target contexts
            for functions.
            (TARGET_SET_CURRENT_FUNCTION): Define.
            * config/loongarch/loongarch.h (SWITCHABLE_TARGET): Enable
            switchable target context.
            * config/loongarch/loongarch-builtins.cc (loongarch_init_builti=
ns):
            Initialize all builtin functions at startup.
            (loongarch_expand_builtin): Turn assertion of builtin availabil=
ity
            into a test.

    gcc/testsuite/ChangeLog:

            * lib/target-supports.exp: Define condition loongarch_sx_as.
            * gcc.dg/lto/pr113233_0.c: New test.=