diff options
author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-01-28 18:08:56 +0000 |
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committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-01-28 18:08:56 +0000 |
commit | ec0457a896817b692d7b51959296de3955098435 (patch) | |
tree | 2f6fbc07999c9923c492e499429bdd22d90f295a /gcc/config/stormy16 | |
parent | 87647325f990fda8bd1c04de8d1097537c6091b7 (diff) | |
download | gcc-ec0457a896817b692d7b51959296de3955098435.tar.gz |
* target.h (targetm.address_cost): New.
* target-def.h (TARGET_ADDRESS_COST): New.
(TARGET_RTX_COSTS): Uncomment. Oops.
* cse.c (address_cost): Use new target hook.
(default_address_cost): New.
* output.h (default_address_cost): Declare.
* hooks.c (hook_int_rtx_0): New.
* hooks.h (hook_int_rtx_0): Declare.
* loop.c (combine_givs_p): Remove if 0 code.
* system.h (ADDRESS_COST): Poison.
* config/alpha/alpha.c, config/alpha/alpha.h, config/d30v/d30v.c,
config/d30v/d30v.h, config/ia64/ia64.c, config/ia64/ia64.h,
config/m32r/m32r.c, config/m32r/m32r.h, config/mcore/mcore.c,
config/mcore/mcore.h, config/mmix/mmix.c, config/mmix/mmix.h,
config/rs6000/rs6000.c, config/rs6000/rs6000.h, config/sparc/sparc.c,
config/sparc/sparc.h, config/v850/v850.c, config/v850/v850.h,
config/xtensa/xtensa.c, config/xtensa/xtensa.h
(TARGET_ADDRESS_COST): Define as hook_int_rtx_0.
(ADDRESS_COST): Remove.
* config/arc/arc-protos.h, config/arc/arc.c, config/arc/arc.h,
config/avr/avr-protos.h, config/avr/avr.c, config/avr/avr.h,
config/c4x/c4x-protos.h, config/c4x/c4x.c, config/c4x/c4x.h,
config/dsp16xx/dsp16xx-protos.h, config/dsp16xx/dsp16xx.c,
config/dsp16xx/dsp16xx.h, config/i386/i386-protos.h,
config/i386/i386.c, config/i386/i386.h, config/i960/i960-protos.h,
config/i960/i960.c, config/i960/i960.h, config/ip2k/ip2k-protos.h,
config/ip2k/ip2k.c, config/ip2k/ip2k.h, config/mips/mips-protos.h,
config/mips/mips.c, config/mips/mips.h,
config/m68hc11/m68hc11-protos.h, config/m68hc11/m68hc11.c,
config/m68hc11/m68hc11.h, config/ns32k/ns32k-protos.h,
config/ns32k/ns32k.c, config/ns32k/ns32k.h, config/pa/pa-protos.h,
config/pa/pa.c, config/pa/pa.h, config/s390/s390-protos.h,
config/s390/s390.c, config/s390/s390.h, config/vax/vax-protos.h,
config/vax/vax.c, config/vax/vax.h
(foo_address_cost): Make static.
(TARGET_ADDRESS_COST): New.
(ADDRESS_COST): Remove.
* config/arm/arm.h, config/arm/arm.c, config/m88k/m88k.h,
config/m88k/m88k.c, config/romp/romp.h, config/romp/romp.c,
config/sh/sh.c, config/sh/sh.h, config/stormy16/stormy16.c,
config/stormy16/stormy16.h
(ADDRESS_COST): Move code ...
(foo_address_cost): ... here.
(TARGET_ADDRESS_COST): New.
* config/m32r/m32r.c (m32r_address_cost): Remove.
* config/m32r/m32r-protos.h: Update.
* config/mmix/mmix.c (mmix_address_cost): Remove.
* config/mmix/mmix-protos.h: Update.
* config/mn10300/mn10300.c (mn10300_address_cost_1): Rename from
mn10300_address_cost; move unsig allocation ...
(mn10300_address_cost): ... here.
(TARGET_ADDRESS_COST): New.
* config/mn10300/mn10300-protos.h: Update.
* config/mn10300/mn10300.h (ADDRESS_COST): Remove.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@61988 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/stormy16')
-rw-r--r-- | gcc/config/stormy16/stormy16.c | 11 | ||||
-rw-r--r-- | gcc/config/stormy16/stormy16.h | 43 |
2 files changed, 11 insertions, 43 deletions
diff --git a/gcc/config/stormy16/stormy16.c b/gcc/config/stormy16/stormy16.c index 7a034626dd9..7a20df4993c 100644 --- a/gcc/config/stormy16/stormy16.c +++ b/gcc/config/stormy16/stormy16.c @@ -58,6 +58,7 @@ static void xstormy16_asm_output_mi_thunk PARAMS ((FILE *, tree, HOST_WIDE_INT, static void xstormy16_init_builtins PARAMS ((void)); static rtx xstormy16_expand_builtin PARAMS ((tree, rtx, rtx, enum machine_mode, int)); static bool xstormy16_rtx_costs PARAMS ((rtx, int, int, int *)); +static int xstormy16_address_cost PARAMS ((rtx)); /* Define the information needed to generate branch and scc insns. This is stored from the compare operation. */ @@ -138,6 +139,14 @@ xstormy16_rtx_costs (x, code, outer_code, total) } } +static int +xstormy16_address_cost (x) + rtx x; +{ + return (GET_CODE (x) == CONST_INT ? 2 + : GET_CODE (x) == PLUS ? 7 + : 5); +} /* Branches are handled as follows: @@ -2209,5 +2218,7 @@ xstormy16_expand_builtin(exp, target, subtarget, mode, ignore) #undef TARGET_RTX_COSTS #define TARGET_RTX_COSTS xstormy16_rtx_costs +#undef TARGET_ADDRESS_COST +#define TARGET_ADDRESS_COST xstormy16_address_cost struct gcc_target targetm = TARGET_INITIALIZER; diff --git a/gcc/config/stormy16/stormy16.h b/gcc/config/stormy16/stormy16.h index b8a90c49f47..505236484d9 100644 --- a/gcc/config/stormy16/stormy16.h +++ b/gcc/config/stormy16/stormy16.h @@ -2197,49 +2197,6 @@ do { \ /* Describing Relative Costs of Operations */ -/* An expression giving the cost of an addressing mode that contains ADDRESS. - If not defined, the cost is computed from the ADDRESS expression and the - `CONST_COSTS' values. - - For most CISC machines, the default cost is a good approximation of the true - cost of the addressing mode. However, on RISC machines, all instructions - normally have the same length and execution time. Hence all addresses will - have equal costs. - - In cases where more than one form of an address is known, the form with the - lowest cost will be used. If multiple forms have the same, lowest, cost, - the one that is the most complex will be used. - - For example, suppose an address that is equal to the sum of a register and a - constant is used twice in the same basic block. When this macro is not - defined, the address will be computed in a register and memory references - will be indirect through that register. On machines where the cost of the - addressing mode containing the sum is no higher than that of a simple - indirect reference, this will produce an additional instruction and possibly - require an additional register. Proper specification of this macro - eliminates this overhead for such machines. - - Similar use of this macro is made in strength reduction of loops. - - ADDRESS need not be valid as an address. In such a case, the cost is not - relevant and can be any value; invalid addresses need not be assigned a - different cost. - - On machines where an address involving more than one register is as cheap as - an address computation involving only one register, defining `ADDRESS_COST' - to reflect this can cause two registers to be live over a region of code - where only one would have been if `ADDRESS_COST' were not defined in that - manner. This effect should be considered in the definition of this macro. - Equivalent costs should probably only be given to addresses with different - numbers of registers on machines with lots of registers. - - This macro will normally either not be defined or be defined as a - constant. */ -#define ADDRESS_COST(ADDRESS) \ - (GET_CODE (ADDRESS) == CONST_INT ? 2 \ - : GET_CODE (ADDRESS) == PLUS ? 7 \ - : 5) - /* A C expression for the cost of moving data of mode MODE from a register in class FROM to one in class TO. The classes are expressed using the enumeration values such as `GENERAL_REGS'. A |