https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65088
--- Comment #3 from Marat Zakirov ---
> I think this has been discussed on the gcc mailing list
Marek could you please share some resuting conclusion at least for x86
platform?
Why didn't x86 GCC RTL fold these loads/stores?
Assignee: unassigned at gcc dot gnu.org
Reporter: m.zakirov at samsung dot com
This example says me that it doesn't.
$ cat t2.c
int a[2];
int b[2];
int main ()
{
b[0] = a[0];
b[1] = a[1];
return 0;
}
$ gcc t2.c -O3 -S
$ cat t2.s
...
main:
.LFB0:
.cfi_startproc
: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: m.zakirov at samsung dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
For the following example GCC with ubsan do not
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61875
--- Comment #6 from Marat Zakirov ---
Created attachment 33446
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33446&action=edit
Proposed patch
According to https://gcc.gnu.org/ml/gcc-patches/2014-09/msg00061.html I think
this bug should be
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61422
Marat Zakirov changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43725
--- Comment #9 from Marat Zakirov ---
I used following patch
diff --git a/gcc/cse.c b/gcc/cse.c
index 34f9364..a9e0442 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -2862,6 +2862,9 @@ canon_reg (rtx x, rtx insn)
|| ! REGNO_QTY_VALID_P (R
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43725
--- Comment #8 from Marat Zakirov ---
UPDATE
Using little fix you may got a much better code...
transpose_16x16:
.fnstart
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 0, uses_anonymous_args = 0
@ link regi
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61887
--- Comment #1 from Marat Zakirov ---
This issue is suitible for ARM
Assignee: unassigned at gcc dot gnu.org
Reporter: m.zakirov at samsung dot com
I found that some tests from vect.exp has status UNRESOLVED in cureent compiler
version due to dissynchronization of compiler dumpers and tests check.
Example:
Test bb-slp-10.c awaits for name
bb-slp-10.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61875
Marat Zakirov changed:
What|Removed |Added
CC||m.zakirov at samsung dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61561
Marat Zakirov changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
,
||m.zakirov at samsung dot com
--- Comment #7 from Marat Zakirov ---
Another neon alloc issue.
Code:
#include
#include
extern uint16x8x4_t m0;
extern uint16x8x4_t m1;
void foo(uint16_t * in_ptr)
{
uint16x8x4_t t0, t1;
t0 = vld4q_u16((uint16_t
Assignee: unassigned at gcc dot gnu.org
Reporter: m.zakirov at samsung dot com
Created attachment 32973
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32973&action=edit
Proposed patch
To reproduce the issue do:
1) Configure gcc for arm as traget and x86 as host.
$ ./configure
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61422
--- Comment #6 from Marat Zakirov ---
Created attachment 32898
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32898&action=edit
Proposed patch
Try this. It is mostly the same. No additional patches is needed. I hope it's
reproducible.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61422
--- Comment #5 from Marat Zakirov ---
Thank you for your quick response Jacub. Actually I take this issue from
existing ffmpeg source so the test is just a truncated version.
Following fail in my 4.10 without discovered fix:
cat test.c
#defin
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61422
--- Comment #3 from Marat Zakirov ---
I fix it.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61422
--- Comment #1 from Marat Zakirov ---
Created attachment 32896
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32896&action=edit
Proposed patch
Only tested with asan testsuite on x64.
Assignee: unassigned at gcc dot gnu.org
Reporter: m.zakirov at samsung dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Bug is reproducible on simple test like:
//Issue was taken
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