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* [Bug target/111609] New: Zero shift in ARM NEON vshll_n_s8 intrinsic produces an error
@ 2023-09-27 8:27 power at pobox dot sk
2023-09-27 17:46 ` [Bug target/111609] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: power at pobox dot sk @ 2023-09-27 8:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111609
Bug ID: 111609
Summary: Zero shift in ARM NEON vshll_n_s8 intrinsic produces
an error
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: power at pobox dot sk
Target Milestone: ---
Using this test program:
#include <stdint.h>
#include <arm_neon.h>
void test(int8_t *src, int16_t *dst)
{
int8x8_t nvalue1;
int16x8_t nvalue2;
nvalue1 = vld1_s8(src);
nvalue2 = vshll_n_s8(nvalue1, 0);
vst1q_s16(dst, nvalue2);
}
The compiler produces this error:
test.s:26: Error: immediate value out of range -- `vshll.s8 q8,d16,#0'
Tested on multiple gcc versions.
According to official ARM documentation, zero shift is valid in vshll_n_s8
intrinsic. The same goes for other vshll_n_XXX intrinsics.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug target/111609] Zero shift in ARM NEON vshll_n_s8 intrinsic produces an error
2023-09-27 8:27 [Bug target/111609] New: Zero shift in ARM NEON vshll_n_s8 intrinsic produces an error power at pobox dot sk
@ 2023-09-27 17:46 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-09-27 17:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111609
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |12.1.0, 4.5.4
Last reconfirmed| |2023-09-27
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-09-27 8:27 [Bug target/111609] New: Zero shift in ARM NEON vshll_n_s8 intrinsic produces an error power at pobox dot sk
2023-09-27 17:46 ` [Bug target/111609] " pinskia at gcc dot gnu.org
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