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| author | liuhongt <hongtao.liu@intel.com> | 2022-05-13 15:48:01 +0800 |
|---|---|---|
| committer | liuhongt <hongtao.liu@intel.com> | 2022-05-16 08:30:34 +0800 |
| commit | 69c4b5c519f0df37e4903992644cc29682721bc1 (patch) | |
| tree | 97e8833d73fd906c2533908f637e2d11954b4f2f /gcc/config | |
| parent | ac6a32f663a6c3b11c205e7c599bd1d92f80f19a (diff) | |
| download | gcc-69c4b5c519f0df37e4903992644cc29682721bc1.zip gcc-69c4b5c519f0df37e4903992644cc29682721bc1.tar.gz gcc-69c4b5c519f0df37e4903992644cc29682721bc1.tar.bz2 | |
Fix ICE caused by wrong condition.
When d->perm[i] == d->perm[i-1] + 1 and d->perm[i] == nelt, it's not
continuous. It should fail if there's more than 2 continuous areas.
gcc/ChangeLog:
PR target/105587
* config/i386/i386-expand.cc
(expand_vec_perm_pslldq_psrldq_por): Fail when (d->perm[i] ==
d->perm[i-1] + 1) && d->perm[i] == nelt && start != -1.
gcc/testsuite/ChangeLog:
* gcc.target/i386/pr105587.c: New test.
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386-expand.cc | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc index 0fd3028c..806e1f5 100644 --- a/gcc/config/i386/i386-expand.cc +++ b/gcc/config/i386/i386-expand.cc @@ -20963,7 +20963,8 @@ expand_vec_perm_pslldq_psrldq_por (struct expand_vec_perm_d *d, bool pandn) start1 = d->perm[0]; for (i = 1; i < nelt; i++) { - if (d->perm[i] != d->perm[i-1] + 1) + if (d->perm[i] != d->perm[i-1] + 1 + || d->perm[i] == nelt) { if (start2 == -1) { @@ -20973,12 +20974,6 @@ expand_vec_perm_pslldq_psrldq_por (struct expand_vec_perm_d *d, bool pandn) else return false; } - else if (d->perm[i] >= nelt - && start2 == -1) - { - start2 = d->perm[i]; - end1 = d->perm[i-1]; - } } clear_op0 = end1 != nelt - 1; |