diff options
| author | Alfie Richards <alfie.richards@arm.com> | 2025-10-15 13:34:55 +0000 |
|---|---|---|
| committer | Alfie Richards <alfie.richards@arm.com> | 2025-11-07 10:20:55 +0000 |
| commit | 7197d8062fddc26c05c0da0bbfcd4128de788e34 (patch) | |
| tree | 4ab86a9aa05a2bd4fcbf43078f70bd865d77aabf /libjava/java/security/Engine.java | |
| parent | a747e40fa03b0c9c1fd0e45541b543713b2bacdf (diff) | |
| download | gcc-7197d8062fddc26c05c0da0bbfcd4128de788e34.zip gcc-7197d8062fddc26c05c0da0bbfcd4128de788e34.tar.gz gcc-7197d8062fddc26c05c0da0bbfcd4128de788e34.tar.bz2 | |
aarch64: Add support for preserve_none function attribute [PR target/118328]
When applied to a function preserve_none changes the procedure call standard
such that all registers except stack pointer, frame register, and link register
are caller saved. Additionally, it changes the argument passing registers.
PR target/118328
gcc/ChangeLog:
* config/aarch64/aarch64.cc (handle_aarch64_vector_pcs_attribute):
Add handling for ARM_PCS_PRESERVE_NONE.
(aarch64_pcs_exclusions): New definition.
(aarch64_gnu_attributes): Add entry for preserve_none and add
aarch64_pcs_exclusions to aarch64_vector_pcs entry.
(aarch64_preserve_none_abi): New function.
(aarch64_fntype_abi): Add handling for preserve_none.
(aarch64_reg_save_mode): Add handling for ARM_PCS_PRESERVE_NONE.
(aarch64_hard_regno_call_part_clobbered): Add handling for
ARM_PCS_PRESERVE_NONE.
(num_pcs_arg_regs): New helper function.
(get_pcs_arg_reg): New helper function.
(aarch64_function_ok_for_sibcall): Add handling for ARM_PCS_PRESERVE_NONE.
(aarch64_layout_arg): Add preserve_none argument lauout..
(function_arg_preserve_none_regno_p): New helper function.
(aarch64_function_arg): Update to handle preserve_none.
(function_arg_preserve_none_regno_p): Update logic for preserve_none.
(aarch64_expand_builtin_va_start): Add preserve_none layout.
(aarch64_setup_incoming_varargs): Add preserve_none layout.
(aarch64_is_variant_pcs): Update for case of ARM_PCS_PRESERVE_NONE.
(aarch64_comp_type_attributes): Add preserve_none.
* config/aarch64/aarch64.h (NUM_PRESERVE_NONE_ARG_REGS): New macro.
(PRESERVE_NONE_REGISTERS): New macro.
(enum arm_pcs): Add ARM_PCS_PRESERVE_NONE.
* doc/extend.texi (preserve_none): Add docs for new attribute.
gcc/testsuite/ChangeLog:
* gcc.target/aarch64/preserve_none_1.c: New test.
* gcc.target/aarch64/preserve_none_mingw_1.c: New test.
* gcc.target/aarch64/preserve_none_2.c: New test.
* gcc.target/aarch64/preserve_none_3.c: New test.
* gcc.target/aarch64/preserve_none_4.c: New test.
* gcc.target/aarch64/preserve_none_5.c: New test.
* gcc.target/aarch64/preserve_none_6.c: New test.
Diffstat (limited to 'libjava/java/security/Engine.java')
0 files changed, 0 insertions, 0 deletions