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mmix.md ("*call_real"): Fix typo in comment.

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* config/mmix/mmix.md ("*call_real"): Fix typo in comment.
	* config/mmix/mmix.h (EXTRA_CONSTRAINT): Pass MMIX_REG_OK_STRICT
	to mmix_extra_constraint.
	* config/mmix/mmix.c (mmix_secondary_reload_class): Only handle
	non-global register classes.  Mark now unused parameters as such.
	(mmix_extra_constraint, 'U'): Use new parameter strict and call
	calling memory_operand_p or strict_memory_address_p, not
	address_operand.
	* config/mmix/mmix-protos.h (mmix_extra_constraint): Add parameter.

From-SVN: r48402
This commit is contained in:
Hans-Peter Nilsson 2001-12-30 16:48:59 +00:00 committed by Hans-Peter Nilsson
parent f6e67fa57e
commit e9fef64c58
5 changed files with 28 additions and 21 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
2001-12-30 Hans-Peter Nilsson <hp@bitrange.com>
* config/mmix/mmix.md ("*call_real"): Fix typo in comment.
* config/mmix/mmix.h (EXTRA_CONSTRAINT): Pass MMIX_REG_OK_STRICT
to mmix_extra_constraint.
* config/mmix/mmix.c (mmix_secondary_reload_class): Only handle
non-global register classes. Mark now unused parameters as such.
(mmix_extra_constraint, 'U'): Use new parameter strict and call
calling memory_operand_p or strict_memory_address_p, not
address_operand.
* config/mmix/mmix-protos.h (mmix_extra_constraint): Add parameter.
2001-12-30 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* unroll.c: Move include files above first use of `const'.

2
gcc/config/mmix/mmix-protos.h
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@ -108,7 +108,7 @@ extern enum reg_class mmix_secondary_reload_class
PARAMS ((enum reg_class, enum machine_mode, rtx, int));
extern int mmix_const_ok_for_letter_p PARAMS ((HOST_WIDE_INT, int));
extern int mmix_const_double_ok_for_letter_p PARAMS ((rtx, int));
extern int mmix_extra_constraint PARAMS ((rtx, int));
extern int mmix_extra_constraint PARAMS ((rtx, int, int));
extern rtx mmix_dynamic_chain_address PARAMS ((rtx));
extern rtx mmix_return_addr_rtx PARAMS ((int, rtx));
extern rtx mmix_eh_return_stackadj_rtx PARAMS ((void));

31
gcc/config/mmix/mmix.c
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@ -269,28 +269,15 @@ mmix_preferred_output_reload_class (x, class)
enum reg_class
mmix_secondary_reload_class (class, mode, x, in_p)
enum reg_class class;
enum machine_mode mode;
rtx x;
int in_p;
enum machine_mode mode ATTRIBUTE_UNUSED;
rtx x ATTRIBUTE_UNUSED;
int in_p ATTRIBUTE_UNUSED;
{
if (class == REMAINDER_REG
|| class == HIMULT_REG
|| class == SYSTEM_REGS)
return GENERAL_REGS;
if (mode != DImode || in_p)
return NO_REGS;
/* We have to help reload. */
if (mode == DImode && GET_CODE (x) == MEM
&& ! address_operand (XEXP (x, 0), GET_MODE (x)))
return GENERAL_REGS;
/* FIXME: Optimize this; there are lots of PLUS:es that don't need a
reload register. */
if (GET_CODE (x) == PLUS)
return GENERAL_REGS;
return NO_REGS;
}
@ -330,14 +317,22 @@ mmix_const_double_ok_for_letter_p (value, c)
CONST_INT:s, but rather often as CONST_DOUBLE:s. */
int
mmix_extra_constraint (x, c)
mmix_extra_constraint (x, c, strict)
rtx x;
int c;
int strict;
{
HOST_WIDEST_INT value;
/* When checking for an address, we need to handle strict vs. non-strict
register checks. Don't use address_operand, but instead its
equivalent (its callee, which it is just a wrapper for),
memory_operand_p and the strict-equivalent strict_memory_address_p. */
if (c == 'U')
return address_operand (x, Pmode);
return
strict
? strict_memory_address_p (Pmode, x)
: memory_address_p (Pmode, x);
if (GET_CODE (x) != CONST_DOUBLE || GET_MODE (x) != VOIDmode)
return 0;

2
gcc/config/mmix/mmix.h
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@ -589,7 +589,7 @@ enum reg_class
mmix_const_ok_for_letter_p (VALUE, C)
#define EXTRA_CONSTRAINT(VALUE, C) \
mmix_extra_constraint (VALUE, C)
mmix_extra_constraint (VALUE, C, MMIX_REG_OK_STRICT)
/* Do we need anything serious here? Yes, any FLOT constant. */
#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \

2
gcc/config/mmix/mmix.md
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@ -1038,7 +1038,7 @@ DIVU %1,%1,%2\;GET %0,:rR\;NEGU %2,0,%0\;CSNN %0,$255,%2")
;; rarely compared to addresses in registers, disparaging the
;; first ("p") alternative by adding ? in the first operand
;; might do the trick. We define 'U' as a synonym to 'p', but without the
;; caveats (and vary small advantages) of 'p'.
;; caveats (and very small advantages) of 'p'.
(define_insn "*call_real"
[(call (mem:QI
(match_operand:DI 0 "mmix_symbolic_or_address_operand" "s,rU"))