https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
Jakub Jelinek changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #10 from Jakub Jelinek ---
Author: jakub
Date: Thu Sep 25 08:19:14 2014
New Revision: 215587
URL: https://gcc.gnu.org/viewcvs?rev=215587&root=gcc&view=rev
Log:
PR tree-optimization/63341
* tree-vectorizer.h (vect_create_data_
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #9 from Jakub Jelinek ---
Author: jakub
Date: Thu Sep 25 08:17:32 2014
New Revision: 215585
URL: https://gcc.gnu.org/viewcvs?rev=215585&root=gcc&view=rev
Log:
PR tree-optimization/63341
* tree-vectorizer.h (vect_create_data_r
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #8 from Jakub Jelinek ---
Author: jakub
Date: Thu Sep 25 08:12:49 2014
New Revision: 215583
URL: https://gcc.gnu.org/viewcvs?rev=215583&root=gcc&view=rev
Log:
PR tree-optimization/63341
* tree-vectorizer.h (vect_create_data_r
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
Jakub Jelinek changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #6 from Jakub Jelinek ---
Another testcase:
typedef union U { unsigned short s; unsigned char c; } __attribute__((packed))
U;
struct S { char e __attribute__((aligned (16))); U s[32]; };
struct S t = {0, {{0x5010}, {0x5111}, {0x5212},
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #5 from Richard Biener ---
Note that vect_create_addr_base_for_vector_ref _does_ multiply offset by
the scalar element size (even if it calls it 'step'):
tree step = TYPE_SIZE_UNIT (TREE_TYPE (DR_REF (dr)));
...
if (offset)
{
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #4 from Richard Biener ---
Btw, should be reproducible with negative step cases on x86_64 as well, as we
do
there
if (negative)
offset = size_int (-TYPE_VECTOR_SUBPARTS (vectype) + 1);
?
I suppose interpreting offset in terms
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #3 from Richard Biener ---
Hum, from the comment on vect_create_data_ref_ptr I would expect offset to be
in units of the _vector_ size ...
Output:
1. Declare a new ptr to vector_type, and have it point to the base of the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
--- Comment #2 from Jakub Jelinek ---
I see non-NULL offset passed to vect_create_data_ref_ptr by vectorizable_store
(for negative case), vectorizable_load (for this
dr_explicit_realign_optimized),
and to vect_create_addr_base_for_vector_ref in v
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63341
Jakub Jelinek changed:
What|Removed |Added
Target Milestone|--- |4.8.4
Summary|[4.8/4.9/5
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