[Bug tree-optimization/90579] [8/9/10 Regression] Huge store forward stall due to vectorizer, missed CSE

2020-03-04 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579 Jakub Jelinek changed: What|Removed |Added Target Milestone|8.4 |8.5 --- Comment #10 from Jakub Jelinek

[Bug tree-optimization/90579] [8/9/10 Regression] Huge store forward stall due to vectorizer, missed CSE

2020-01-17 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579 Richard Biener changed: What|Removed |Added Priority|P3 |P2 Status|NEW

[Bug tree-optimization/90579] [8/9/10 Regression] Huge store forward stall due to vectorizer

2019-07-31 Thread rguenther at suse dot de
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579 --- Comment #8 from rguenther at suse dot de --- On Wed, 31 Jul 2019, crazylht at gmail dot com wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579 > > --- Comment #7 from Hongtao.liu --- > Transform second loop as > > diff --git

[Bug tree-optimization/90579] [8/9/10 Regression] Huge store forward stall due to vectorizer

2019-07-31 Thread crazylht at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579 --- Comment #7 from Hongtao.liu --- Transform second loop as diff --git a/loop.c b/loop.c index feea9ea..81a3ea6 100644 --- a/loop.c +++ b/loop.c @@ -9,6 +9,6 @@ loop (int k, double x) for (i=0;i<6;i++) r[i] = x * a[i + k]; for

[Bug tree-optimization/90579] [8/9/10 Regression] Huge store forward stall due to vectorizer

2019-06-14 Thread hjl.tools at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579 --- Comment #6 from H.J. Lu --- After this bug is fixed, we should revisit the workaround for https://sourceware.org/bugzilla/show_bug.cgi?id=24603 to check if it is still necessary.

[Bug tree-optimization/90579] [8/9/10 Regression] Huge store forward stall due to vectorizer

2019-06-12 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90579 Richard Biener changed: What|Removed |Added Target Milestone|--- |8.4 Summary|[8/9/10] Huge