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Use define_memory_constraint on sparc when necessary.

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* config/sparc/constraints.md ("T", "W"): Change
	definitions to use define_memory_constraint.  Do not match
	'reg'.
	* config/sparc/sparc.c (memory_ok_for_ldd): Remove all non-MEM
	handling code, update comment.

From-SVN: r192757
This commit is contained in:
David S. Miller 2012-10-24 05:59:27 +00:00 committed by David S. Miller
parent f4b2452702
commit 9106d8d215
3 changed files with 19 additions and 22 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2012-10-23 David S. Miller <davem@davemloft.net>
* config/sparc/constraints.md ("T", "W"): Change
definitions to use define_memory_constraint. Do not match
'reg'.
* config/sparc/sparc.c (memory_ok_for_ldd): Remove all non-MEM
handling code, update comment.
2012-10-23 Ian Lance Taylor <iant@google.com>
* doc/extend.texi (Extended Asm): The '+' constraint does not

8
gcc/config/sparc/constraints.md
View File

@ -132,10 +132,10 @@
(match_test "fp_high_losum_p (op)")))
;; Not needed in 64-bit mode
(define_constraint "T"
(define_memory_constraint "T"
"Memory reference whose address is aligned to 8-byte boundary"
(and (match_test "TARGET_ARCH32")
(match_code "mem,reg")
(match_code "mem")
(match_test "memory_ok_for_ldd (op)")))
;; Not needed in 64-bit mode
@ -148,9 +148,9 @@
(match_test "register_ok_for_ldd (op)")))
;; Equivalent to 'T' but available in 64-bit mode
(define_constraint "W"
(define_memory_constraint "W"
"Memory reference for 'e' constraint floating-point register"
(and (match_code "mem,reg")
(and (match_code "mem")
(match_test "memory_ok_for_ldd (op)")))
(define_constraint "Y"

25
gcc/config/sparc/sparc.c
View File

@ -8065,29 +8065,18 @@ register_ok_for_ldd (rtx reg)
return 1;
}
/* Return 1 if OP is a memory whose address is known to be
aligned to 8-byte boundary, or a pseudo during reload.
This makes it suitable for use in ldd and std insns. */
/* Return 1 if OP, a MEM, has an address which is known to be
aligned to an 8-byte boundary. */
int
memory_ok_for_ldd (rtx op)
{
if (MEM_P (op))
{
/* In 64-bit mode, we assume that the address is word-aligned. */
if (TARGET_ARCH32 && !mem_min_alignment (op, 8))
return 0;
/* In 64-bit mode, we assume that the address is word-aligned. */
if (TARGET_ARCH32 && !mem_min_alignment (op, 8))
return 0;
if (! can_create_pseudo_p ()
&& !strict_memory_address_p (Pmode, XEXP (op, 0)))
return 0;
}
else if (REG_P (op) && REGNO (op) >= FIRST_PSEUDO_REGISTER)
{
if (!(reload_in_progress && reg_renumber [REGNO (op)] < 0))
return 0;
}
else
if (! can_create_pseudo_p ()
&& !strict_memory_address_p (Pmode, XEXP (op, 0)))
return 0;
return 1;