diff options
| author | Kewen Lin <linkw@linux.ibm.com> | 2022-01-14 07:02:10 -0600 |
|---|---|---|
| committer | Kewen Lin <linkw@linux.ibm.com> | 2022-01-14 07:02:10 -0600 |
| commit | 6d51a9c6447bace21f860e70aed13c6cd90971bd (patch) | |
| tree | 252cc39da96aca2c6663a36e3e49977481118a5c /gcc/tree-vect-loop.c | |
| parent | de196e5dd8ea4d0ed01a8c265afdd3676e27545b (diff) | |
| download | gcc-6d51a9c6447bace21f860e70aed13c6cd90971bd.zip gcc-6d51a9c6447bace21f860e70aed13c6cd90971bd.tar.gz gcc-6d51a9c6447bace21f860e70aed13c6cd90971bd.tar.bz2 | |
vect: Check partial vector param for supports_partial_vectors [PR104015]
As described in PR104015, the function partial_vectors_supported_p
mainly checks optabs for partial vectors support query, but we
still have one parameter param_vect_partial_vector_usage to control
the capability.
Power9 introduces vector with length instructions (for
len_load/len_store) but we don't enable partial vector on it by
default. It should be considered as not supporting partial vector by
default. This fix is to make the flag supports_partial_vectors check
param_vect_partial_vector_usage accordingly.
gcc/ChangeLog:
PR tree-optimization/104015
* tree-vect-loop.c (vect_analyze_loop): Check
param_vect_partial_vector_usage for supports_partial_vectors.
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 8748b1a..1dbdb9e 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -3051,7 +3051,8 @@ vect_analyze_loop (class loop *loop, vec_info_shared *shared) vector_modes[0] = autodetected_vector_mode; mode_i = 0; - bool supports_partial_vectors = partial_vectors_supported_p (); + bool supports_partial_vectors = + partial_vectors_supported_p () && param_vect_partial_vector_usage != 0; poly_uint64 first_vinfo_vf = LOOP_VINFO_VECT_FACTOR (first_loop_vinfo); while (1) |