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This commit is contained in:
Vladimir Kozlov 2017-10-27 08:55:32 +00:00
commit d378db4d76
1 changed files with 9 additions and 5 deletions
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14
src/hotspot/share/opto/superword.cpp
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@ -2168,10 +2168,12 @@ void SuperWord::output() {
CountedLoopNode *cl = lpt()->_head->as_CountedLoop();
Compile* C = _phase->C;
if (_packset.length() == 0) {
// Instigate more unrolling for optimization when vectorization fails.
C->set_major_progress();
cl->set_notpassed_slp();
cl->mark_do_unroll_only();
if (cl->is_main_loop()) {
// Instigate more unrolling for optimization when vectorization fails.
C->set_major_progress();
cl->set_notpassed_slp();
cl->mark_do_unroll_only();
}
return;
}
@ -2417,6 +2419,9 @@ void SuperWord::output() {
}//for (int i = 0; i < _block.length(); i++)
C->set_max_vector_size(max_vlen_in_bytes);
if (max_vlen_in_bytes > 0) {
cl->mark_loop_vectorized();
}
if (SuperWordLoopUnrollAnalysis) {
if (cl->has_passed_slp()) {
@ -2439,7 +2444,6 @@ void SuperWord::output() {
}
if (do_reserve_copy()) {
cl->mark_loop_vectorized();
if (can_process_post_loop) {
// Now create the difference of trip and limit and use it as our mask index.
// Note: We limited the unroll of the vectorized loop so that