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| author | Richard Sandiford <richard.sandiford@arm.com> | 2020-11-18 18:40:32 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2020-11-18 18:40:32 +0000 |
| commit | ee9dd1c3022aa01ed3733cf58ed1f490872fa214 (patch) | |
| tree | 7a39e9eca4468908792cbf5d656ae09e94b1877b /gcc | |
| parent | 6a9cd27ac6721ff378210c2851fb716c73f2a750 (diff) | |
| download | gcc-ee9dd1c3022aa01ed3733cf58ed1f490872fa214.zip gcc-ee9dd1c3022aa01ed3733cf58ed1f490872fa214.tar.gz gcc-ee9dd1c3022aa01ed3733cf58ed1f490872fa214.tar.bz2 | |
testsuite: Adjust gcc.dg/vect/slp-21.c for Arm targets
On arm* and aarch64* targets, we can vectorise the second of the main
loops using SLP, not just the third. As the comments say, whether this
is supported depends on a very specific permutation, so it seemed better
to use direct target selectors.
gcc/testsuite/
* gcc.dg/vect/slp-21.c: Expect 4 SLP instances to be vectorized
on arm* and aarch64* targets.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/slp-21.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/slp-21.c b/gcc/testsuite/gcc.dg/vect/slp-21.c index 1f8c82e..117d65c 100644 --- a/gcc/testsuite/gcc.dg/vect/slp-21.c +++ b/gcc/testsuite/gcc.dg/vect/slp-21.c @@ -201,6 +201,16 @@ int main (void) /* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect" { target { vect_strided4 || vect_extract_even_odd } } } } */ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { ! { vect_strided4 || vect_extract_even_odd } } } } } */ -/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect" { target vect_strided4 } } } */ +/* Some targets can vectorize the second of the three main loops using + hybrid SLP. For 128-bit vectors, the required 4->3 permutations are: + + { 0, 1, 2, 4, 5, 6, 8, 9 } + { 2, 4, 5, 6, 8, 9, 10, 12 } + { 5, 6, 8, 9, 10, 12, 13, 14 } + + Not all vect_perm targets support that, and it's a bit too specific to have + its own effective-target selector, so we just test targets directly. */ +/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 4 "vect" { target { aarch64*-*-* arm*-*-* } } } } */ +/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect" { target { vect_strided4 && { ! { aarch64*-*-* arm*-*-* } } } } } } */ /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" { target { ! { vect_strided4 } } } } } */ |