[Bug tree-optimization/43434] Missed vectorization: "not vectorized: data ref analysis": pointer incremented by a parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434 --- Comment #12 from Richard Biener --- Author: rguenth Date: Thu Jun 22 11:46:45 2017 New Revision: 249552 URL: https://gcc.gnu.org/viewcvs?rev=249552=gcc=rev Log: 2017-06-22 Richard Biener Backport from mainline

[Bug tree-optimization/43434] Missed vectorization: "not vectorized: data ref analysis": pointer incremented by a parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434 Richard Biener changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug tree-optimization/43434] Missed vectorization: "not vectorized: data ref analysis": pointer incremented by a parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434 Richard Biener changed: What|Removed |Added Known to work||7.0 --- Comment #10 from Richard

[Bug tree-optimization/43434] Missed vectorization: "not vectorized: data ref analysis": pointer incremented by a parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434 --- Comment #9 from Richard Biener --- Author: rguenth Date: Mon Apr 18 13:09:53 2016 New Revision: 235147 URL: https://gcc.gnu.org/viewcvs?rev=235147=gcc=rev Log: 2016-04-18 Richard Biener PR

[Bug tree-optimization/43434] Missed vectorization: "not vectorized: data ref analysis": pointer incremented by a parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434 --- Comment #8 from Richard Biener --- Now that strided SLP is implemented we run into t.c:10:3: note: versioning for alias required: can't determine dependence between *s1_82 and MEM[(DCTELEM *)block_81 clique 1 base 1] t.c:10:3: note: mark

[Bug tree-optimization/43434] Missed vectorization: not vectorized: data ref analysis: pointer incremented by a parameter

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED

[Bug tree-optimization/43434] Missed vectorization: not vectorized: data ref analysis: pointer incremented by a parameter

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434 Richard Guenther rguenth at gcc dot gnu.org changed: What|Removed |Added Blocks||53947 ---

[Bug tree-optimization/43434] Missed vectorization: not vectorized: data ref analysis: pointer incremented by a parameter

--- Comment #5 from matz at gcc dot gnu dot org 2010-09-07 13:42 --- Since Ira implemented unaligned support in SLP mode we get somewhat further, but not much. If complete unrolling is active that we can't disambiguate between *s and *(s+stride). That is correct because stride is

[Bug tree-optimization/43434] Missed vectorization: not vectorized: data ref analysis: pointer incremented by a parameter

--- Comment #4 from rguenth at gcc dot gnu dot org 2010-03-19 12:53 --- (In reply to comment #2) Oh it might also need the patch for PR 29751 which I hope to submit for 4.6. Note the patch in there still works and has been tested as of earlier this week. New mem-ref will make that

[Bug tree-optimization/43434] Missed vectorization: not vectorized: data ref analysis: pointer incremented by a parameter

--- Comment #1 from pinskia at gcc dot gnu dot org 2010-03-18 21:43 --- Hint here, character types can alias any other type. Also I think s1 and s2 need to be marked as restrict to get the aliasing correct. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434

[Bug tree-optimization/43434] Missed vectorization: not vectorized: data ref analysis: pointer incremented by a parameter

--- Comment #2 from pinskia at gcc dot gnu dot org 2010-03-18 21:44 --- Oh it might also need the patch for PR 29751 which I hope to submit for 4.6. Note the patch in there still works and has been tested as of earlier this week. --

[Bug tree-optimization/43434] Missed vectorization: not vectorized: data ref analysis: pointer incremented by a parameter

--- Comment #3 from pinskia at gcc dot gnu dot org 2010-03-18 21:50 --- Actually I am wrong but there is something else going on here. failed: evolution of base is not affine. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434