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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2019-10-07 15:01:15 +0000 |
|---|---|---|
| committer | Ilya Leoshkevich <iii@gcc.gnu.org> | 2019-10-07 15:01:15 +0000 |
| commit | dcd2ca63ec5c467decb70db983fc19a8329f67dc (patch) | |
| tree | 57e8c3ef3613a9b118825f76b0390c14d6429549 /gcc/tree-if-conv.c | |
| parent | 70e2a30ac8f474feefbcc392cbc59cf91271b92b (diff) | |
| download | gcc-dcd2ca63ec5c467decb70db983fc19a8329f67dc.zip gcc-dcd2ca63ec5c467decb70db983fc19a8329f67dc.tar.gz gcc-dcd2ca63ec5c467decb70db983fc19a8329f67dc.tar.bz2 | |
Introduce can_vcond_compare_p function
z13 supports only non-signaling vector comparisons. This means we
cannot vectorize LT, LE, GT, GE and LTGT when compiling for z13.
However, we cannot express this restriction today: the code only checks
whether vcond$a$b optab exists, but this does not say anything about the
operation.
Introduce a function that checks whether back-end supports vector
comparisons with individual rtx codes by matching vcond expander's third
argument with a fake comparison with the corresponding rtx code.
gcc/ChangeLog:
2019-10-07 Ilya Leoshkevich <iii@linux.ibm.com>
PR target/77918
* optabs-tree.c (vcond_icode_p): New function.
(vcond_eq_icode_p): Likewise.
(expand_vec_cond_expr_p): Use vcond_icode_p and
vcond_eq_icode_p.
* optabs.c (can_vcond_compare_p): New function.
* optabs.h (can_vcond_compare_p): Likewise.
From-SVN: r276660
Diffstat (limited to 'gcc/tree-if-conv.c')
0 files changed, 0 insertions, 0 deletions