diff options
Diffstat (limited to 'gcc/config/mn10300/mn10300.h')
| -rw-r--r-- | gcc/config/mn10300/mn10300.h | 75 |
1 files changed, 45 insertions, 30 deletions
diff --git a/gcc/config/mn10300/mn10300.h b/gcc/config/mn10300/mn10300.h index f7371550ab9..5bc14520d83 100644 --- a/gcc/config/mn10300/mn10300.h +++ b/gcc/config/mn10300/mn10300.h @@ -145,6 +145,31 @@ extern int target_flags; #define FIRST_PSEUDO_REGISTER 18 +/* Specify machine-specific register numbers. */ +#define FIRST_DATA_REGNUM 0 +#define LAST_DATA_REGNUM 3 +#define FIRST_ADDRESS_REGNUM 4 +#define LAST_ADDRESS_REGNUM 8 +#define FIRST_EXTENDED_REGNUM 10 +#define LAST_EXTENDED_REGNUM 17 + +/* Specify the registers used for certain standard purposes. + The values of these macros are register numbers. */ + +/* Register to use for pushing function arguments. */ +#define STACK_POINTER_REGNUM (LAST_ADDRESS_REGNUM+1) + +/* Base register for access to local variables of the function. */ +#define FRAME_POINTER_REGNUM (LAST_ADDRESS_REGNUM-1) + +/* Base register for access to arguments of the function. This + is a fake register and will be eliminated into either the frame + pointer or stack pointer. */ +#define ARG_POINTER_REGNUM LAST_ADDRESS_REGNUM + +/* Register in which static-chain is passed to a function. */ +#define STATIC_CHAIN_REGNUM (FIRST_ADDRESS_REGNUM+1) + /* 1 for registers that have pervasive standard uses and are not available for the register allocator. */ @@ -169,7 +194,8 @@ extern int target_flags; { \ if (!TARGET_AM33) \ { \ - for (i = 10; i < 18; i++) \ + for (i = FIRST_EXTENDED_REGNUM; \ + i <= LAST_EXTENDED_REGNUM; i++) \ fixed_regs[i] = call_used_regs[i] = 1; \ } \ } @@ -272,10 +298,10 @@ enum reg_class { or could index an array. */ #define REGNO_REG_CLASS(REGNO) \ - ((REGNO) < 4 ? DATA_REGS : \ - (REGNO) < 9 ? ADDRESS_REGS : \ - (REGNO) == 9 ? SP_REGS : \ - (REGNO) < 18 ? EXTENDED_REGS : \ + ((REGNO) <= LAST_DATA_REGNUM ? DATA_REGS : \ + (REGNO) <= LAST_ADDRESS_REGNUM ? ADDRESS_REGS : \ + (REGNO) == STACK_POINTER_REGNUM ? SP_REGS : \ + (REGNO) <= LAST_EXTENDED_REGNUM ? EXTENDED_REGS : \ NO_REGS) /* The class value for index registers, and the one for base regs. */ @@ -323,10 +349,14 @@ enum reg_class { && reg_renumber[(regno)] >= (min) && reg_renumber[(regno)] <= (max))) #endif -#define REGNO_DATA_P(regno) REGNO_IN_RANGE_P ((regno), 0, 3) -#define REGNO_ADDRESS_P(regno) REGNO_IN_RANGE_P ((regno), 4, 8) -#define REGNO_SP_P(regno) REGNO_IN_RANGE_P ((regno), 9, 9) -#define REGNO_EXTENDED_P(regno) REGNO_IN_RANGE_P ((regno), 10, 17) +#define REGNO_DATA_P(regno) \ + REGNO_IN_RANGE_P ((regno), FIRST_DATA_REGNUM, LAST_DATA_REGNUM) +#define REGNO_ADDRESS_P(regno) \ + REGNO_IN_RANGE_P ((regno), FIRST_ADDRESS_REGNUM, LAST_ADDRESS_REGNUM) +#define REGNO_SP_P(regno) \ + REGNO_IN_RANGE_P ((regno), STACK_POINTER_REGNUM, STACK_POINTER_REGNUM) +#define REGNO_EXTENDED_P(regno) \ + REGNO_IN_RANGE_P ((regno), FIRST_EXTENDED_REGNUM, LAST_EXTENDED_REGNUM) #define REGNO_AM33_P(regno) \ (REGNO_DATA_P ((regno)) || REGNO_ADDRESS_P ((regno)) \ || REGNO_EXTENDED_P ((regno))) @@ -431,23 +461,6 @@ enum reg_class { #define FIRST_PARM_OFFSET(FNDECL) 4 -/* Specify the registers used for certain standard purposes. - The values of these macros are register numbers. */ - -/* Register to use for pushing function arguments. */ -#define STACK_POINTER_REGNUM 9 - -/* Base register for access to local variables of the function. */ -#define FRAME_POINTER_REGNUM 7 - -/* Base register for access to arguments of the function. This - is a fake register and will be eliminated into either the frame - pointer or stack pointer. */ -#define ARG_POINTER_REGNUM 8 - -/* Register in which static-chain is passed to a function. */ -#define STATIC_CHAIN_REGNUM 5 - #define ELIMINABLE_REGS \ {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ @@ -554,16 +567,18 @@ struct cum_arg {int nbytes; }; otherwise, FUNC is 0. */ #define FUNCTION_VALUE(VALTYPE, FUNC) \ - gen_rtx_REG (TYPE_MODE (VALTYPE), POINTER_TYPE_P (VALTYPE) ? 4 : 0) + gen_rtx_REG (TYPE_MODE (VALTYPE), POINTER_TYPE_P (VALTYPE) \ + ? FIRST_ADDRESS_REGNUM : FIRST_DATA_REGNUM) /* Define how to find the value returned by a library function assuming the value has mode MODE. */ -#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 0) +#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, FIRST_DATA_REGNUM) /* 1 if N is a possible register number for a function value. */ -#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (N) == 4) +#define FUNCTION_VALUE_REGNO_P(N) \ + ((N) == FIRST_DATA_REGNUM || (N) == FIRST_ADDRESS_REGNUM) /* Return values > 8 bytes in length in memory. */ #define DEFAULT_PCC_STRUCT_RETURN 0 @@ -574,7 +589,7 @@ struct cum_arg {int nbytes; }; is passed to a function. On the MN10300 it's passed as the first parameter. */ -#define STRUCT_VALUE 0 +#define STRUCT_VALUE FIRST_DATA_REGNUM /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, the stack pointer does not matter. The value is tested only in |