From 7b5cbb57032c98320bc7b5ba9da3dab8362a393d Mon Sep 17 00:00:00 2001 From: Anatoly Sokolov Date: Wed, 26 Aug 2009 01:09:00 +0400 Subject: hooks.h (hook_bool_const_int_const_int_true): Declare. * hooks.h (hook_bool_const_int_const_int_true): Declare. * hooks.c (hook_bool_const_int_const_int_true): New function. * target.h (struct gcc_target): Add can_eliminate field. * target-def.h (TARGET_CAN_ELIMINATE): Define. (TARGET_INITIALIZER): Use TARGET_CAN_ELIMINATE. * ira.c (setup_eliminable_regset): Use can_eliminate target hook. * reload1.c (update_eliminables, init_elim_table): (Ditto.). (elim_table): Revise comment. * system.h (CAN_ELIMINATE): Poison. * defaults.h (CAN_ELIMINATE): Remove. * doc/tm.texi (CAN_ELIMINATE): Revise documentation. * config/alpha/vms.h (CAN_ELIMINATE): Remove macro. * config/alpha/alpha.c (TARGET_CAN_ELIMINATE) [TARGET_ABI_OPEN_VMS]: Define macro. (alpha_vms_can_eliminate): Declare as static, change return type to bool. * config/alpha/alpha-protos.h (alpha_vms_can_eliminate): Remove. * config/arm/arm.h (CAN_ELIMINATE): Remove macro. * config/arm/arm.c (TARGET_CAN_ELIMINATE): Define macro. (arm_can_eliminate): New function. * config/avr/avr.h (CAN_ELIMINATE): Remove macro. * config/avr/avr.c (TARGET_CAN_ELIMINATE): Define macro. (avr_can_eliminate): Declare as static. * config/avr/avr-protos.h (avr_can_eliminate): Remove. * config/bfin/bfin.h (CAN_ELIMINATE): Remove macro. * config/bfin/bfin.c (TARGET_CAN_ELIMINATE): Define macro. (bfin_can_eliminate): New function. * config/crx/crx.h (CAN_ELIMINATE): Remove macro. * config/crx/crx.c (TARGET_CAN_ELIMINATE): Define macro. (crx_can_eliminate): New function. * config/fr30/fr30.h (CAN_ELIMINATE): Remove macro. * config/fr30/fr30.c (TARGET_CAN_ELIMINATE): Define macro. (fr30_can_eliminate): New function. * config/frv/frv.h (CAN_ELIMINATE): Remove macro. * config/frv/frv.c (TARGET_CAN_ELIMINATE): Define macro. (frv_can_eliminate): New function. * config/h8300/h8300.h (CAN_ELIMINATE): Remove macro. * config/h8300/h8300.c (TARGET_CAN_ELIMINATE): Define macro. (h8300_can_eliminate): New function. * config/i386/i386.h (CAN_ELIMINATE): Remove macro. * config/i386/i386.c (TARGET_CAN_ELIMINATE): Define macro. (i386_can_eliminate): Declare as static, change return type to bool. * config/i386/i386-protos.h (i386_can_eliminate): Remove. * config/ia64/ia64.h (CAN_ELIMINATE): Remove macro. * config/ia64/ia64.c (TARGET_CAN_ELIMINATE): Define macro. (ia64_can_eliminate): New function. * config/iq2000/iq2000.h (CAN_ELIMINATE): Remove macro. * config/iq2000/iq2000.c (TARGET_CAN_ELIMINATE): Define macro. (iq2000_can_eliminate): New function. * config/m32r/m32r.h (CAN_ELIMINATE): Remove macro. * config/m32r/m32r.c (TARGET_CAN_ELIMINATE): Define macro. (m32r_can_eliminate): New function. * config/m68hc11/m68hc11.h (CAN_ELIMINATE): Remove macro. * config/m68hc11/m68hc11.c (TARGET_CAN_ELIMINATE): Define macro. (m68hc11_can_eliminate): New function. * config/m68k/m68k.h (CAN_ELIMINATE): Remove macro. * config/m68k/m68k.c (TARGET_CAN_ELIMINATE): Define macro. (m68k_can_eliminate): New function. * config/mep/mep.h (CAN_ELIMINATE): Remove macro. * config/mep/mep.c (TARGET_CAN_ELIMINATE): Define macro. (mep_can_eliminate): New function. * config/mips/mips.h (CAN_ELIMINATE): Remove macro. * config/mips/mips.c (TARGET_CAN_ELIMINATE): Define macro. (mips_can_eliminate): New function. * config/rs6000/rs6000.h (CAN_ELIMINATE): Remove macro. * config/rs6000/rs6000.c (TARGET_CAN_ELIMINATE): Define macro. (rs6000_can_eliminate): New function. * config/s390/s390.h (CAN_ELIMINATE): Remove macro. * config/s390/s390.c (TARGET_CAN_ELIMINATE): Define macro. (s390_can_eliminate): Declare as static. * config/s390/s390-protos.h (sparc_can_eliminate): Remove. * config/score/score.h (CAN_ELIMINATE): Remove macro. * config/score/score.c (TARGET_CAN_ELIMINATE): Define macro. (score_can_eliminate): New function. * config/sparc/sparc.h (CAN_ELIMINATE): Remove macro. * config/sparc/sparc.c (TARGET_CAN_ELIMINATE): Define macro. (sparc_can_eliminate): Declare as static. * config/sparc/sparc-protos.h (sparc_can_eliminate): Remove. * config/stormy16/stormy16.h (CAN_ELIMINATE): Remove macro. * config/stormy16/stormy16.c (TARGET_CAN_ELIMINATE): Define macro. (xstormy16_can_eliminate): New function. * config/v850/v850.h (CAN_ELIMINATE): Remove macro. * config/v850/v850.c (TARGET_CAN_ELIMINATE): Define macro. (v850_can_eliminate): New function. From-SVN: r151096 --- gcc/doc/tm.texi | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'gcc/doc/tm.texi') diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index df4973d..818df81 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -3812,16 +3812,16 @@ Note that the elimination of the argument pointer with the stack pointer is specified first since that is the preferred elimination. @end defmac -@defmac CAN_ELIMINATE (@var{from-reg}, @var{to-reg}) -A C expression that returns @code{true} if the compiler is allowed to try -to replace register number @var{from-reg} with register number -@var{to-reg}. This macro need only be defined if @code{ELIMINABLE_REGS} +@deftypefn {Target Hook} bool TARGET_CAN_ELIMINATE (const int @var{from-reg}, const int @var{to-reg}) +This target hook should returns @code{true} if the compiler is allowed to +try to replace register number @var{from-reg} with register number +@var{to-reg}. This target hook need only be defined if @code{ELIMINABLE_REGS} is defined, and will usually be @code{true}, since most of the cases preventing register elimination are things that the compiler already knows about. -Default value is @code{true}. -@end defmac +Default return value is @code{true}. +@end deftypefn @defmac INITIAL_ELIMINATION_OFFSET (@var{from-reg}, @var{to-reg}, @var{offset-var}) This macro is similar to @code{INITIAL_FRAME_POINTER_OFFSET}. It -- cgit v1.1