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| author | Andreas Krebbel <krebbel1@de.ibm.com> | 2006-05-12 07:51:35 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2006-05-12 07:51:35 +0000 |
| commit | 651a36e333ad720eaff2145132cbcbb29f4e1df4 (patch) | |
| tree | 0ae713cef227524c87ed81b152718d17172898d2 | |
| parent | 66ec80f982c4774ba2bef326517d7ea982477704 (diff) | |
| download | gcc-651a36e333ad720eaff2145132cbcbb29f4e1df4.zip gcc-651a36e333ad720eaff2145132cbcbb29f4e1df4.tar.gz gcc-651a36e333ad720eaff2145132cbcbb29f4e1df4.tar.bz2 | |
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
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/s390/s390.c | 6 | ||||
| -rw-r--r-- | gcc/config/s390/s390.md | 2 |
3 files changed, 11 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fff2191..e8f8d07 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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 diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index fdd4b5c..e55686d 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -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 (); diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md index 54822da..6459c81 100644 --- a/gcc/config/s390/s390.md +++ b/gcc/config/s390/s390.md @@ -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. |