Re: [PATCH] Fix PR68707, 67323

2015-12-17 Thread Alan Lawrence
On 17/12/15 10:46, Richard Biener wrote: On Thu, 17 Dec 2015, Alan Lawrence wrote: On 16/12/15 15:01, Richard Biener wrote: The following patch adds a heuristic to prefer store/load-lanes over SLP when vectorizing. Compared to the variant attached to the PR I made the STMT_VINFO_STRIDED_P be

Re: [PATCH] Fix PR68707, 67323

2015-12-17 Thread Richard Biener
On Thu, 17 Dec 2015, Alan Lawrence wrote: > On 16/12/15 15:01, Richard Biener wrote: > > > > The following patch adds a heuristic to prefer store/load-lanes > > over SLP when vectorizing. Compared to the variant attached to > > the PR I made the STMT_VINFO_STRIDED_P behavior explicit (matching >

Re: [PATCH] Fix PR68707, 67323

2015-12-17 Thread Alan Lawrence
On 16/12/15 15:01, Richard Biener wrote: The following patch adds a heuristic to prefer store/load-lanes over SLP when vectorizing. Compared to the variant attached to the PR I made the STMT_VINFO_STRIDED_P behavior explicit (matching what you've tested). Not sure I follow this. Compared to t

[PATCH] Fix PR68707, 67323

2015-12-16 Thread Richard Biener
The following patch adds a heuristic to prefer store/load-lanes over SLP when vectorizing. Compared to the variant attached to the PR I made the STMT_VINFO_STRIDED_P behavior explicit (matching what you've tested). It's a heuristic that may end up vectorizing less loops or loops in a less optima