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* [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive
@ 2023-03-09 15:34 malat at debian dot org
2023-03-09 15:35 ` [Bug c/109082] " malat at debian dot org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: malat at debian dot org @ 2023-03-09 15:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109082
Bug ID: 109082
Summary: emmintrin.h:1624:16: error: argument 3 must be a
literal between 0 and 15, inclusive
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: malat at debian dot org
Target Milestone: ---
On ppc64el here is what I get:
% /usr/lib/gcc-snapshot/bin/gcc -DNO_WARN_X86_INTRINSICS -O3 -c tu.c
In file included from tu.c:1:
In function '_mm_bsrli_si128',
inlined from 'foo' at tu.c:3:10:
/usr/lib/gcc-snapshot/lib/gcc/powerpc64le-linux-gnu/13/include/emmintrin.h:1624:16:
error: argument 3 must be a literal between 0 and 15, inclusive
1624 | __result = vec_sld (__zeros, (__v16qu) __A, (16 - __N));
| ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
where
% cat tu.c
#include <emmintrin.h>
__m128i foo(__m128i A) {
return _mm_bsrli_si128(A, 0);
}
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/109082] emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive
2023-03-09 15:34 [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive malat at debian dot org
@ 2023-03-09 15:35 ` malat at debian dot org
2023-03-09 15:44 ` jakub at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: malat at debian dot org @ 2023-03-09 15:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109082
--- Comment #1 from Mathieu Malaterre <malat at debian dot org> ---
Looks like a typo:
% head -1624
/usr/lib/gcc-snapshot/lib/gcc/powerpc64le-linux-gnu/13/include/emmintrin.h |
tail
__v16qu __result;
const __v16qu __zeros = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
if (__N < 16)
#ifdef __LITTLE_ENDIAN__
if (__builtin_constant_p(__N))
/* Would like to use Vector Shift Left Double by Octet
Immediate here to use the immediate form and avoid
load of __N * 8 value into a separate VR. */
__result = vec_sld (__zeros, (__v16qu) __A, (16 - __N));
^
should be 15 - __N
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/109082] emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive
2023-03-09 15:34 [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive malat at debian dot org
2023-03-09 15:35 ` [Bug c/109082] " malat at debian dot org
@ 2023-03-09 15:44 ` jakub at gcc dot gnu.org
2023-03-09 15:48 ` [Bug target/109082] " jakub at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2023-03-09 15:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109082
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I doubt (15 - __N) would be correct, more likely -__N & 15.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/109082] emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive
2023-03-09 15:34 [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive malat at debian dot org
2023-03-09 15:35 ` [Bug c/109082] " malat at debian dot org
2023-03-09 15:44 ` jakub at gcc dot gnu.org
@ 2023-03-09 15:48 ` jakub at gcc dot gnu.org
2023-03-16 8:14 ` linkw at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2023-03-09 15:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109082
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
_mm_slli_si128's __result = vec_sld (__zeros, (__v16qu) __A, (16 - _imm5)); has
similar problem.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/109082] emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive
2023-03-09 15:34 [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive malat at debian dot org
` (2 preceding siblings ...)
2023-03-09 15:48 ` [Bug target/109082] " jakub at gcc dot gnu.org
@ 2023-03-16 8:14 ` linkw at gcc dot gnu.org
2023-03-27 2:45 ` cvs-commit at gcc dot gnu.org
2023-03-27 8:10 ` linkw at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: linkw at gcc dot gnu.org @ 2023-03-16 8:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109082
Kewen Lin <linkw at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |linkw at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |linkw at gcc dot gnu.org
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
Last reconfirmed| |2023-03-16
--- Comment #4 from Kewen Lin <linkw at gcc dot gnu.org> ---
Confirmed, as PVIPR for:
r = vec_sld (a, b, c)
c must be in the range 0–15.
I noticed that for:
__m128i test_r(__m128i vec )
{
return _mm_bsrli_si128 ( vec, -1);
}
icc would optimize it to vzero while gcc would emit error msg.
IMHO we should guard the N with __N < 16 && __N >= 0 and return vzeros for the
others.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/109082] emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive
2023-03-09 15:34 [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive malat at debian dot org
` (3 preceding siblings ...)
2023-03-16 8:14 ` linkw at gcc dot gnu.org
@ 2023-03-27 2:45 ` cvs-commit at gcc dot gnu.org
2023-03-27 8:10 ` linkw at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-03-27 2:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109082
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kewen Lin <linkw@gcc.gnu.org>:
https://gcc.gnu.org/g:f33fc0775706e4db80d584c477608e28f4da0a6f
commit r13-6870-gf33fc0775706e4db80d584c477608e28f4da0a6f
Author: Kewen Lin <linkw@linux.ibm.com>
Date: Sun Mar 26 21:42:23 2023 -0500
rs6000: Ensure vec_sld shift count in allowable range [PR109082]
As PR109082 shows, some uses of vec_sld in emmintrin.h don't
strictly guarantee the given shift count is in the range
0-15 (inclusive). This patch is to make the argument
range constraint honored for those uses.
PR target/109082
gcc/ChangeLog:
* config/rs6000/emmintrin.h (_mm_bslli_si128): Check __N is not
less
than zero when calling vec_sld.
(_mm_bsrli_si128): Return __A if __N is zero, check __N is bigger
than
zero when calling vec_sld.
(_mm_slli_si128): Return __A if _imm5 is zero, check _imm5 is
bigger
than zero when calling vec_sld.
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/pr109082.c: New test.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/109082] emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive
2023-03-09 15:34 [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive malat at debian dot org
` (4 preceding siblings ...)
2023-03-27 2:45 ` cvs-commit at gcc dot gnu.org
@ 2023-03-27 8:10 ` linkw at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: linkw at gcc dot gnu.org @ 2023-03-27 8:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109082
Kewen Lin <linkw at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from Kewen Lin <linkw at gcc dot gnu.org> ---
Should be fixed on trunk.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2023-03-09 15:34 [Bug c/109082] New: emmintrin.h:1624:16: error: argument 3 must be a literal between 0 and 15, inclusive malat at debian dot org
2023-03-09 15:35 ` [Bug c/109082] " malat at debian dot org
2023-03-09 15:44 ` jakub at gcc dot gnu.org
2023-03-09 15:48 ` [Bug target/109082] " jakub at gcc dot gnu.org
2023-03-16 8:14 ` linkw at gcc dot gnu.org
2023-03-27 2:45 ` cvs-commit at gcc dot gnu.org
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