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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2018-01-02 18:25:45 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-01-02 18:25:45 +0000 |
| commit | 3ea109a3479cdbbe8a47bf60b2d2d69072a1d51b (patch) | |
| tree | 97ee41fba95472080036586c5de1b5d4ed707397 /gcc/optabs.c | |
| parent | a1d6c05238093d4de85dc18f825ba4f5e3a5746c (diff) | |
| download | gcc-3ea109a3479cdbbe8a47bf60b2d2d69072a1d51b.zip gcc-3ea109a3479cdbbe8a47bf60b2d2d69072a1d51b.tar.gz gcc-3ea109a3479cdbbe8a47bf60b2d2d69072a1d51b.tar.bz2 | |
The vec_perm code falls back to doing byte-level permutes if element-level permutes aren't supported.
qimode_for_vec_perm
The vec_perm code falls back to doing byte-level permutes if
element-level permutes aren't supported. There were two copies
of the code to calculate the mode, and later patches add another,
so this patch splits it out into a helper function.
2018-01-02 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* optabs-query.h (qimode_for_vec_perm): Declare.
* optabs-query.c (can_vec_perm_p): Split out qimode search to...
(qimode_for_vec_perm): ...this new function.
* optabs.c (expand_vec_perm): Use qimode_for_vec_perm.
From-SVN: r256089
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index 225e955..a2213dd 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -5472,9 +5472,7 @@ expand_vec_perm (machine_mode mode, rtx v0, rtx v1, rtx sel, rtx target) /* Set QIMODE to a different vector mode with byte elements. If no such mode, or if MODE already has byte elements, use VOIDmode. */ - if (GET_MODE_INNER (mode) == QImode - || !mode_for_vector (QImode, w).exists (&qimode) - || !VECTOR_MODE_P (qimode)) + if (!qimode_for_vec_perm (mode).exists (&qimode)) qimode = VOIDmode; /* If the input is a constant, expand it specially. */ |