diff options
Diffstat (limited to 'gcc/config/v850/v850.c')
| -rw-r--r-- | gcc/config/v850/v850.c | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/gcc/config/v850/v850.c b/gcc/config/v850/v850.c index dcbb644..f16114e 100644 --- a/gcc/config/v850/v850.c +++ b/gcc/config/v850/v850.c @@ -51,6 +51,8 @@ /* Function prototypes for stupid compilers: */ static void const_double_split PARAMS ((rtx, HOST_WIDE_INT *, HOST_WIDE_INT *)); static int const_costs_int PARAMS ((HOST_WIDE_INT, int)); +static int const_costs PARAMS ((rtx, enum rtx_code)); +static bool v850_rtx_costs PARAMS ((rtx, int, int, int *)); static void substitute_ep_register PARAMS ((rtx, rtx, int, int, rtx *, rtx *)); static int ep_memory_offset PARAMS ((enum machine_mode, int)); static void v850_set_data_area PARAMS ((tree, v850_data_area)); @@ -105,6 +107,9 @@ static int v850_interrupt_p = FALSE; #undef TARGET_STRIP_NAME_ENCODING #define TARGET_STRIP_NAME_ENCODING v850_strip_name_encoding +#undef TARGET_RTX_COSTS +#define TARGET_RTX_COSTS v850_rtx_costs + struct gcc_target targetm = TARGET_INITIALIZER; /* Sometimes certain combinations of command options do not make @@ -322,7 +327,7 @@ const_costs_int (value, zero_cost) return 4; } -int +static int const_costs (r, c) rtx r; enum rtx_code c; @@ -354,6 +359,55 @@ const_costs (r, c) } } +static bool +v850_rtx_costs (x, code, outer_code, total) + rtx x; + int code, outer_code ATTRIBUTE_UNUSED, *total; +{ + switch (code) + { + case CONST_INT: + case CONST_DOUBLE: + case CONST: + case SYMBOL_REF: + case LABEL_REF: + *total = COSTS_N_INSNS (const_costs (x, code)); + return true; + + case MOD: + case DIV: + case UMOD: + case UDIV: + if (TARGET_V850E && optimize_size) + *total = 6; + else + *total = 60; + return true; + + case MULT: + if (TARGET_V850E + && ( GET_MODE (x) == SImode + || GET_MODE (x) == HImode + || GET_MODE (x) == QImode)) + { + if (GET_CODE (XEXP (x, 1)) == REG) + *total = 4; + else if (GET_CODE (XEXP (x, 1)) == CONST_INT) + { + if (CONST_OK_FOR_O (INTVAL (XEXP (x, 1)))) + *total = 6; + else if (CONST_OK_FOR_K (INTVAL (XEXP (x, 1)))) + *total = 10; + } + } + else + *total = 20; + return true; + + default: + return false; + } +} /* Print operand X using operand code CODE to assembly language output file FILE. */ |