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(BITS_PER_WORD): TARGET_POWERPC64 dependent.

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(MAX_BITS_PER_WORD): Define.
(UNITS_PER_WORD): TARGET_POWERPC64 dependent.
(MAX_UNITS_PER_WORD): Define.
(UNITS_PER_FP_WORD): Define.
(HARD_REGNO_NREGS): Use MAX_UNITS_PER_FP_WORD.
(HARD_REGNO_MODE_OK): Likewise.
(CLASS_MAX_NREGS): Likewise.
(MOVE_MAX): TARGET_POWER and TARGET_POWERPC64 dependent.
(MAX_MOVE_MAX): Define.

From-SVN: r8590
This commit is contained in:
Richard Kenner 1994-11-30 18:51:07 -05:00
parent 414d3ee46f
commit 2e360ab3f7
1 changed files with 10 additions and 6 deletions
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16
gcc/config/rs6000/rs6000.h
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@ -277,10 +277,13 @@ extern char *rs6000_cpu_string;
Note that this is not necessarily the width of data type `int';
if using 16-bit ints on a 68000, this would still be 32.
But on a machine with 16-bit registers, this would be 16. */
#define BITS_PER_WORD 32
#define BITS_PER_WORD (TARGET_POWERPC64 ? 64 : 32)
#define MAX_BITS_PER_WORD 64
/* Width of a word, in units (bytes). */
#define UNITS_PER_WORD 4
#define UNITS_PER_WORD (TARGET_POWERPC64 ? 8 : 4)
#define MAX_UNITS_PER_WORD 8
#define UNITS_PER_FP_WORD 8
/* Type used for ptrdiff_t, as a string used in a declaration. */
#define PTRDIFF_TYPE "int"
@ -434,7 +437,7 @@ extern char *rs6000_cpu_string;
#define HARD_REGNO_NREGS(REGNO, MODE) \
(FP_REGNO_P (REGNO) \
? ((GET_MODE_SIZE (MODE) + 2 * UNITS_PER_WORD - 1) / (2 * UNITS_PER_WORD)) \
? ((GET_MODE_SIZE (MODE) + UNITS_PER_FP_WORD - 1) / UNITS_PER_FP_WORD) \
: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
@ -447,7 +450,7 @@ extern char *rs6000_cpu_string;
(FP_REGNO_P (REGNO) ? \
(GET_MODE_CLASS (MODE) == MODE_FLOAT \
|| (GET_MODE_CLASS (MODE) == MODE_INT \
&& GET_MODE_SIZE (MODE) == 2 * UNITS_PER_WORD)) \
&& GET_MODE_SIZE (MODE) == UNITS_PER_FP_WORD)) \
: CR_REGNO_P (REGNO) ? GET_MODE_CLASS (MODE) == MODE_CC \
: ! INT_REGNO_P (REGNO) ? (GET_MODE_CLASS (MODE) == MODE_INT \
&& GET_MODE_SIZE (MODE) <= UNITS_PER_WORD) \
@ -718,7 +721,7 @@ enum reg_class { NO_REGS, BASE_REGS, GENERAL_REGS, FLOAT_REGS,
except in the FP regs, where a single reg is enough for two words. */
#define CLASS_MAX_NREGS(CLASS, MODE) \
((CLASS) == FLOAT_REGS \
? ((GET_MODE_SIZE (MODE) + 2 * UNITS_PER_WORD - 1) / (2 * UNITS_PER_WORD)) \
? ((GET_MODE_SIZE (MODE) + UNITS_PER_FP_WORD - 1) / UNITS_PER_FP_WORD) \
: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
/* If defined, gives a class of registers that cannot be used as the
@ -1364,7 +1367,8 @@ struct rs6000_args {int words, fregno, nargs_prototype; };
/* Max number of bytes we can move from memory to memory
in one reasonably fast instruction. */
#define MOVE_MAX 16
#define MOVE_MAX (TARGET_POWER ? 16 : (TARGET_POWERPC64 ? 8 : 4))
#define MAX_MOVE_MAX 16
/* Nonzero if access to memory by bytes is no faster than for words.
Also non-zero if doing byte operations (specifically shifts) in registers