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| author | Tejas Belagod <tejas.belagod@arm.com> | 2014-04-24 10:08:48 +0100 |
|---|---|---|
| committer | Tejas Belagod <belagod@gcc.gnu.org> | 2014-04-24 10:08:48 +0100 |
| commit | bbcc9c00015be1f7c186990f5cd35ea935452912 (patch) | |
| tree | 0fe4a19d2c0884c185f5ee523fcc008c2564492f | |
| parent | d2d11532af9f96937ea48b2a8b3481ffc722a53c (diff) | |
| download | gcc-bbcc9c00015be1f7c186990f5cd35ea935452912.zip gcc-bbcc9c00015be1f7c186990f5cd35ea935452912.tar.gz gcc-bbcc9c00015be1f7c186990f5cd35ea935452912.tar.bz2 | |
[AArch64] Reverse TBL indices for big-endian.
2014-04-24 Tejas Belagod <tejas.belagod@arm.com>
* config/aarch64/aarch64.c (aarch64_evpc_tbl): Reverse order of elements
for big-endian.
From-SVN: r209742
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 10 |
2 files changed, 14 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 591179a..9c13da0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2014-04-24 Tejas Belagod <tejas.belagod@arm.com> + + * config/aarch64/aarch64.c (aarch64_evpc_tbl): Reverse order of elements + for big-endian. + 2014-04-24 Richard Biener <rguenther@suse.de> * expr.c (expand_expr_real_1): Avoid gimple_assign_rhs_to_tree diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 496d1b8..d644f79 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -8158,7 +8158,15 @@ aarch64_evpc_tbl (struct expand_vec_perm_d *d) return false; for (i = 0; i < nelt; ++i) - rperm[i] = GEN_INT (d->perm[i]); + { + int nunits = GET_MODE_NUNITS (vmode); + + /* If big-endian and two vectors we end up with a weird mixed-endian + mode on NEON. Reverse the index within each word but not the word + itself. */ + rperm[i] = GEN_INT (BYTES_BIG_ENDIAN ? d->perm[i] ^ (nunits - 1) + : d->perm[i]); + } sel = gen_rtx_CONST_VECTOR (vmode, gen_rtvec_v (nelt, rperm)); sel = force_reg (vmode, sel); |