gcc/

	* target.h (gcc_target.asm_out): Merge output_mi_thunk and
	output_mi_vcall_thunk into a single hook.  Add can_output_mi_thunk.
	* target-def.h (TARGET_ASM_OUTPUT_MI_THUNK): Don't conditionalize.
	(TARGET_ASM_OUTPUT_MI_VCALL_THUNK): Remove.
	(TARGET_ASM_CAN_OUTPUT_MI_THUNK): New.
	(TARGET_ASM_OUT): Update.
	* hooks.c (hook_bool_tree_hwi_hwi_tree_false): New.
	(hook_bool_tree_hwi_hwi_tree_true): New.
	(default_can_output_mi_thunk_no_vcall): New.
	* hooks.h: Declare them.
	* system.h (ASM_OUTPUT_MI_THUNK): Poison.

	* config/alpha/alpha.c (TARGET_ASM_CAN_OUTPUT_MI_THUNK): New.
	(alpha_output_mi_thunk_osf): Add VCALL_OFFSET parameter.
	* config/arm/arm.c, config/cris/cris.c, config/frv/frv.c,
	config/i960/i960.c, config/ia64/ia64.c, config/m68k/m68k.c,
	config/mmix/mmix.c, config/pa/pa.c, config/sparc/sparc.c,
	config/stormy16/stormy16.c: Similarly.

	* config/i386/i386.c (x86_output_mi_thunk): Merge vcall_offset code.
	Handle 64-bit properly.  Streamline.
	(x86_output_mi_vcall_thunk): Remove.
	(x86_this_parameter): Rename from ia32_this_parameter; handle 64-bit.
	(x86_can_output_mi_thunk): New.
	(TARGET_ASM_OUTPUT_MI_VCALL_THUNK): Remove.
	(TARGET_ASM_CAN_OUTPUT_MI_THUNK): New.
	(override_options): Don't zap targetm.asm_out.output_mi_vcall_thunk.

	* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Rename from
	output_mi_thunk; make static; always use function_section.
	(TARGET_ASM_OUTPUT_MI_THUNK): New.
	(TARGET_ASM_CAN_OUTPUT_MI_THUNK): New.
	(rs6000_ra_ever_killed): Test no_new_pseudos not
	targetm.asm_out.output_mi_thunk in conjunction with thunks.
	* config/rs6000/rs6000-protos.h: Update.
	* config/rs6000/sysv4.h (TARGET_ASM_OUTPUT_MI_THUNK): Remove.
	* config/rs6000/xcoff.h (ASM_DECLARE_FUNCTION_NAME): Don't call
	xcoffout_declare_function when using rs6000_output_mi_thunk.

	* config/s390/s390.c (s390_output_mi_thunk): Rename from
	s390_output_mi_vcall_thunk.
	(TARGET_ASM_OUTPUT_MI_THUNK): Remove.
	(TARGET_ASM_CAN_OUTPUT_MI_THUNK): New.

	* config/vax/vax.c (vax_output_mi_thunk): Static; add vcall_offset.
	(TARGET_ASM_OUTPUT_MI_THUNK, TARGET_ASM_CAN_OUTPUT_MI_THUNK): New.
	* config/vax/vax-protos.h: Update.
	* config/vax/vax.h (ASM_OUTPUT_MI_THUNK): Remove.

gcc/cp/
        * method.c (use_thunk): Always compute vcall_value; assert that
        it is not zero.  Use can_output_mi_thunk; use output_mi_thunk
        for vcall thunks as well.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@58424 138bc75d-0d04-0410-961f-82ee72b054a4

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