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| author | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-03-24 13:53:43 +0000 |
|---|---|---|
| committer | krebbel <krebbel@138bc75d-0d04-0410-961f-82ee72b054a4> | 2017-03-24 13:53:43 +0000 |
| commit | 4c715561ea10236239c4c2e2a24da7ea6d99ebc1 (patch) | |
| tree | 64f82f05433ab392a1c3945b90fb5f938fdd94cc /gcc/config/s390/s390.c | |
| parent | 7aace192e6fe015b0c0be11978aa790abfa7fa85 (diff) | |
| download | gcc-4c715561ea10236239c4c2e2a24da7ea6d99ebc1.tar.gz | |
S/390: Improve support of 128 bit vectors in GPRs
This patch improves the handling of 128 bit vectors residing in GPRs
by adding more alternatives to the move pattern.
Regression tested on s390x.
gcc/ChangeLog:
2017-03-24 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/constraints.md: Add comments.
(jKK): Reject element sizes > 8 bytes.
* config/s390/s390.c (s390_split_ok_p): Enable splitting also for
s_operands.
* config/s390/s390.md: Add the s_operand checks formerly in
s390_split_ok_p to various splitters where they are still
required.
* config/s390/vector.md ("mov<mode>" V_128): Add GPR alternatives
for 128 bit vectors. Plus two splitters.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@246445 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/s390/s390.c')
| -rw-r--r-- | gcc/config/s390/s390.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index 27640adfaec..f3cebd63ef9 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -2494,10 +2494,6 @@ s390_split_ok_p (rtx dst, rtx src, machine_mode mode, int first_subword) if (FP_REG_P (src) || FP_REG_P (dst) || VECTOR_REG_P (src) || VECTOR_REG_P (dst)) return false; - /* We don't need to split if operands are directly accessible. */ - if (s_operand (src, mode) || s_operand (dst, mode)) - return false; - /* Non-offsettable memory references cannot be split. */ if ((GET_CODE (src) == MEM && !offsettable_memref_p (src)) || (GET_CODE (dst) == MEM && !offsettable_memref_p (dst))) |