diff options
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300-protos.h | 2 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.c | 8 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.h | 2 |
4 files changed, 16 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f773d5b..0da3da2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2002-02-14 Kazu Hirata <kazu@hxi.com> + + * config/h8300/h8300-protos.h: Update the prototype for + const_costs. + * config/h8300/h8300.c (const_costs): Treat SET as a little + more expensive operation. + * config/h8300/h8300.h (DEFAULT_RTX_COSTS): Update the + reference to const_costs. + 2002-02-14 Hans-Peter Nilsson <hp@axis.com> * config.gcc (c4x-*-rtems*): Fix typo in tm_file setting. diff --git a/gcc/config/h8300/h8300-protos.h b/gcc/config/h8300/h8300-protos.h index 9c9444d..876b3cb 100644 --- a/gcc/config/h8300/h8300-protos.h +++ b/gcc/config/h8300/h8300-protos.h @@ -30,7 +30,7 @@ extern const char *output_a_shift PARAMS ((rtx *)); extern const char *emit_a_rotate PARAMS ((enum rtx_code, rtx *)); extern const char *output_simode_bld PARAMS ((int, rtx[])); extern void print_operand_address PARAMS ((FILE *, rtx)); -extern int const_costs PARAMS ((rtx, enum rtx_code)); +extern int const_costs PARAMS ((rtx, enum rtx_code, enum rtx_code)); extern void print_operand PARAMS ((FILE *, rtx, int)); extern void final_prescan_insn PARAMS ((rtx, rtx *, int)); extern int do_movsi PARAMS ((rtx[])); diff --git a/gcc/config/h8300/h8300.c b/gcc/config/h8300/h8300.c index 85a87b0..b0bd3df 100644 --- a/gcc/config/h8300/h8300.c +++ b/gcc/config/h8300/h8300.c @@ -872,9 +872,10 @@ function_arg (cum, mode, type, named) /* Return the cost of the rtx R with code CODE. */ int -const_costs (r, c) +const_costs (r, c, outer_code) rtx r; enum rtx_code c; + enum rtx_code outer_code; { switch (c) { @@ -882,15 +883,16 @@ const_costs (r, c) switch (INTVAL (r)) { case 0: + return 0; case 1: case 2: case -1: case -2: - return 0; + return 0 + (outer_code == SET); case 4: case -4: if (TARGET_H8300H || TARGET_H8300S) - return 0; + return 0 + (outer_code == SET); else return 1; default: diff --git a/gcc/config/h8300/h8300.h b/gcc/config/h8300/h8300.h index cfa413a..21ef1bf 100644 --- a/gcc/config/h8300/h8300.h +++ b/gcc/config/h8300/h8300.h @@ -1005,7 +1005,7 @@ struct cum_arg return it with a return statement. Otherwise, break from the switch. */ #define DEFAULT_RTX_COSTS(RTX, CODE, OUTER_CODE) \ - return (const_costs (RTX, CODE)); + return (const_costs (RTX, CODE, OUTER_CODE)); #define BRANCH_COST 0 |