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(REG_ALLOC_ORDER): Changed back to natural order.

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(CONST_DOUBLE_OK_FOR_LETTER_P): Added letter 'G'.
(EXIT_IGNORE_STACK): Set to 0.
(REG_OK_FOR_BASE_P, REG_OK_FOR_INDEX_P): Use corresponding REGNO_OK.
(MOVE_MAX, MOVE_RATIO): Defined.

From-SVN: r11197
This commit is contained in:
Richard Kenner 1996-02-10 08:38:57 -05:00
parent 3269969693
commit 27383dfc6c
1 changed files with 26 additions and 10 deletions
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36
gcc/config/1750a/1750a.h
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@ -1,6 +1,6 @@
/* Definitions of target machine for GNU compiler.
Copyright (C) 1994, 1995 Free Software Foundation, Inc.
Contributed by O.M.Kellogg, DASA (kellogg@space.otn.dasa.de)
Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
Contributed by O.M.Kellogg, DASA (oliver.kellogg@space.otn.dasa.de)
This file is part of GNU CC.
@ -206,8 +206,9 @@ extern char *strdup(), *float_label();
registers listed in CALL_USED_REGISTERS, keeping the others
available for storage of persistent values. */
#define REG_ALLOC_ORDER \
/* #define REG_ALLOC_ORDER \
{ 2, 0, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }
*/
/* Return number of consecutive hard regs needed starting at reg REGNO
to hold something of mode MODE.
@ -255,8 +256,18 @@ extern char *strdup(), *float_label();
/* Register in which static-chain is passed to a function. */
#define STATIC_CHAIN_REGNUM 13
/* Place in which caller passes the structure value address.
0 means push the value on the stack like an argument.
#define STRUCT_VALUE 0
*/
/* Register in which address to store a structure value
is passed to a function. */
arrives in the function.
#define STRUCT_VALUE_INCOMING 0
*/
/* Register in which address to store a structure value
is passed to a function. */
#define STRUCT_VALUE_REGNUM 12
/* Define this to be 1 if all structure return values must be in memory. */
@ -362,7 +373,9 @@ enum reg_class { NO_REGS, R2, R0_1, INDEX_REGS, BASE_REGS, ALL_REGS, LIM_REG_CLA
/* Similar, but for floating constants, and defining letter 'G'.
Here VALUE is the CONST_DOUBLE rtx itself. */
#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 0
#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \
((C) == 'G' ? ((VALUE) == CONST0_RTX (HFmode) \
|| (VALUE) == CONST0_RTX (TQFmode)) : 0)
/* Optional extra constraints for this machine.
@ -599,7 +612,7 @@ enum reg_class { NO_REGS, R2, R0_1, INDEX_REGS, BASE_REGS, ALL_REGS, LIM_REG_CLA
functions that have frame pointers.
No definition is equivalent to always zero. */
#define EXIT_IGNORE_STACK 1
#define EXIT_IGNORE_STACK 0
/* This macro generates the assembly code for function exit,
on machines that need it. If FUNCTION_EPILOGUE is not defined
@ -732,9 +745,9 @@ enum reg_class { NO_REGS, R2, R0_1, INDEX_REGS, BASE_REGS, ALL_REGS, LIM_REG_CLA
#ifdef REG_OK_STRICT
/* Nonzero if X is a hard reg that can be used as an index. */
#define REG_OK_FOR_INDEX_P(X) (REGNO (X) >= 12 && REGNO (X) <= 15)
#define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P(REGNO(X))
/* Nonzero if X is a hard reg that can be used as a base reg. */
#define REG_OK_FOR_BASE_P(X) (REGNO (X) > 0 && REGNO (X) <= 15)
#define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P(REGNO(X))
#else
@ -817,8 +830,11 @@ enum reg_class { NO_REGS, R2, R0_1, INDEX_REGS, BASE_REGS, ALL_REGS, LIM_REG_CLA
/* Max number of bytes we can move from memory to memory
in one reasonably fast instruction. */
/* (was: "1750: not counting the MOV instruction") */
#define MOVE_MAX 16
#define MOVE_MAX 65536
/* MOVE_RATIO is the number of move instructions that is better than a
block move. */
#define MOVE_RATIO 4
/* Define this if zero-extension is slow (more than one real instruction). */
/* #define SLOW_ZERO_EXTEND */