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s390.c (s390_const_ok_for_constraint_p): Disallow -4G for On contraint. 

2006-05-12  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.c (s390_const_ok_for_constraint_p): Disallow -4G for
	On contraint.
	* config/s390/s390.md: Adjust comment describing On constraint.

From-SVN: r113721
This commit is contained in:
Andreas Krebbel 2006-05-12 07:51:35 +00:00 committed by Andreas Krebbel
parent 66ec80f982
commit 651a36e333
3 changed files with 11 additions and 3 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2006-05-12 Andreas Krebbel <krebbel1@de.ibm.com>
* config/s390/s390.c (s390_const_ok_for_constraint_p): Disallow -4G for
On contraint.
* config/s390/s390.md: Adjust comment describing On constraint.
2006-05-11 Jan Hubicka <jh@suse.cz>
* cgraphunit.c (decide_is_function_needed): Don't force always_inline

6
gcc/config/s390/s390.c
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@ -2075,8 +2075,10 @@ s390_const_ok_for_constraint_p (HOST_WIDE_INT value,
|| s390_single_part (GEN_INT (value), DImode, SImode, 0) == 1;
case 'n':
return value == -1
|| s390_single_part (GEN_INT (value), DImode, SImode, -1) == 1;
return
(value == -1
|| s390_single_part (GEN_INT (value), DImode, SImode, -1) == 1)
&& value != -((HOST_WIDE_INT)1 << 32);
default:
gcc_unreachable ();

2
gcc/config/s390/s390.md
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@ -50,7 +50,7 @@
;; O -- Multiple letter constraint followed by 1 parameter.
;; s: Signed extended immediate value (-2G .. 2G-1).
;; p: Positive extended immediate value (0 .. 4G-1).
;; n: Negative extended immediate value (-4G .. -1).
;; n: Negative extended immediate value (-4G+1 .. -1).
;; These constraints do not accept any operand if the machine does
;; not provide the extended-immediate facility.
;; P -- Any integer constant that can be loaded without literal pool.