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| author | Jakub Jelinek <jakub@redhat.com> | 2017-07-17 10:14:16 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2017-07-17 10:14:16 +0200 |
| commit | 1f1e8aed3afc08e9d70bba9110e289f7fa329453 (patch) | |
| tree | ce61c2221126093bbe0151b30cada1ee8d593428 /gcc/tree-loop-distribution.c | |
| parent | ed9091b270721c399112c74eb15b7fc27ef127db (diff) | |
| download | gcc-1f1e8aed3afc08e9d70bba9110e289f7fa329453.zip gcc-1f1e8aed3afc08e9d70bba9110e289f7fa329453.tar.gz gcc-1f1e8aed3afc08e9d70bba9110e289f7fa329453.tar.bz2 | |
re PR tree-optimization/81396 (Optimization of reading Little-Endian 64-bit number with portable code has a regression)
PR tree-optimization/81396
* tree-ssa-math-opts.c (struct symbolic_number): Add n_ops field.
(init_symbolic_number): Initialize it to 1.
(perform_symbolic_merge): Add n_ops from both operands into the new
n_ops.
(find_bswap_or_nop): Don't consider n->n == cmpnop computations
without base_addr as useless if they need more than one operation.
(bswap_replace): Handle !bswap case for NULL base_addr.
* gcc.dg/tree-ssa/pr81396.c: New test.
From-SVN: r250257
Diffstat (limited to 'gcc/tree-loop-distribution.c')
0 files changed, 0 insertions, 0 deletions