r142592 - in /branches/ARM/hard_vfp_4_4_branch/...

[rearnsha@gcc.gnu.org]

Author: rearnsha
Date: Tue Dec  9 15:15:41 2008
New Revision: 142592

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142592
Log:
ARM Hard-VFP calling convention
* target-def.h (TARGET_LIBCALL_VALUE): New hook.
* target.h (gcc_target): Add libcall_value to table of call hooks.
* targhooks.h (default_libcall_value): Default implementation.
* targhooks.c (default_libcall_value): Likewise.
* doc/tm.texi (TARGET_LIBCALL_VALUE): Document it.
* optabs.c (expand_unop): Use it.
* expr.h (hard_libcall_value): Pass the function RTX through.
* calls.c (emit_library_call_value_1): Update call to 
hard_libcall_value.
* explow.c (hard_libcall_value): Use new target hook.
* testsuite/lib/target-supports.exp
(check_effective_target_arm_hard_vfp_ok): New hook.
(check_effective_target_arm_neon_ok): Improve test for neon
availability.
* testsuite/gcc.target/arm/eabi1.c: Only run test in base variant.
* config/arm/arm.c: Include cgraph.h
(TARGET_FUNCTION_VALUE): Override default hook.
(arm_pcs_default): New variable.
(arm_override_options): Don't fault hard calling convention with VFP.
Add support for AAPCS variants.
(arm_function_value): Make static.  Handle AAPCS variants.
(arm_libcall_value): New function.
(arm_apply_result_size): Handle VFP registers in results.
(arm_return_in_memory): Rework all AAPCS variants; handle hard-vfp
conventions.
(pcs_attribute_args): New variable.
(arm_pcs_from_attribute): New function.
(arm_get_pcs_model): New function.
(aapcs_vfp_cum_init): New function.
(aapcs_vfp_sub_candidate): New function.
(aapcs_vfp_is_return_candidate): New function.
(aapcs_vfp_is_call_candidate): New function.
(aapcs_vfp_allocate): New function.
(aapcs_vfp_allocate_return_reg): New function.
(aapcs_vfp_advance): New function.
(aapcs_cp_arg_layout): New variable.
(aapcs_select_call_coproc): New function.
(aapcs_select_return_coproc): New function.
(aapcs_allocate_return_reg): New function.
(aapcs_libcall_value): New function.
(aapcs_layout_arg): New function.
(arm_init_cumulative_args): Initialize AAPCS args data.
(arm_function_arg): Handle AAPCS variants using new interface.
(arm_arg_parital_bytes): Likewise.
(arm_function_arg_advance): New function.
(arm_function_ok_for_sibcall): Ensure that sibling calls agree on
calling conventions.
(arm_setup_incoming_varargs): Handle new AAPCS args data.
* arm.h (NUM_VFP_ARG_REGS): Define.
(LIBCALL_VALUE): Update.
(FUNCTION_VALUE): Delete.
(FUNCTION_VALUE_REGNO_P): Add VFP regs.
(arm_pcs): New enum.
(CUMULATIVE_ARGS): New data to support AAPCS argument marshalling.
(FUNCTION_ARG_ADVANCE): Call arm_function_arg_advance.
(FUNCTION_ARG_REGNO_P): Add VFP regs.
* arm-protos.h (arm_function_arg_advance): Add.
(aapcs_libcall_value): Add.
(arm_function_value): Delete.

Added:
    branches/ARM/hard_vfp_4_4_branch/gcc/ChangeLog.ARM
Modified:
    branches/ARM/hard_vfp_4_4_branch/gcc/calls.c
    branches/ARM/hard_vfp_4_4_branch/gcc/config/arm/arm-protos.h
    branches/ARM/hard_vfp_4_4_branch/gcc/config/arm/arm.c
    branches/ARM/hard_vfp_4_4_branch/gcc/config/arm/arm.h
    branches/ARM/hard_vfp_4_4_branch/gcc/config/arm/t-arm-elf
    branches/ARM/hard_vfp_4_4_branch/gcc/doc/tm.texi
    branches/ARM/hard_vfp_4_4_branch/gcc/explow.c
    branches/ARM/hard_vfp_4_4_branch/gcc/expr.h
    branches/ARM/hard_vfp_4_4_branch/gcc/optabs.c
    branches/ARM/hard_vfp_4_4_branch/gcc/target-def.h
    branches/ARM/hard_vfp_4_4_branch/gcc/target.h
    branches/ARM/hard_vfp_4_4_branch/gcc/targhooks.c
    branches/ARM/hard_vfp_4_4_branch/gcc/targhooks.h
    branches/ARM/hard_vfp_4_4_branch/gcc/testsuite/gcc.target/arm/eabi1.c
    branches/ARM/hard_vfp_4_4_branch/gcc/testsuite/lib/target-supports.exp