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* [Bug target/116595] New: default-initialization of vfloat32m1x4_t causes ICE
@ 2024-09-04  5:31 pinskia at gcc dot gnu.org
  2024-09-04  5:35 ` [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) " pinskia at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-09-04  5:31 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116595

            Bug ID: 116595
           Summary: default-initialization of vfloat32m1x4_t causes ICE
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---
            Target: riscv

Take this C++:
```
#include <riscv_vector.h>

void transpose4x4_ps()
{
    vfloat32m1x4_t _r = vfloat32m1x4_t();
}
```

This ICEs with:
<source>: In function 'void transpose4x4_ps()':
<source>:6:20: internal compiler error: in to_constant, at poly-int.h:592
    6 |     vfloat32m1x4_t _r = vfloat32m1x4_t();
      |                    ^~


I am not sure this is valid or not.

It also ICEs with clang.

^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) causes ICE
  2024-09-04  5:31 [Bug target/116595] New: default-initialization of vfloat32m1x4_t causes ICE pinskia at gcc dot gnu.org
@ 2024-09-04  5:35 ` pinskia at gcc dot gnu.org
  2024-09-04  6:05 ` kito at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-09-04  5:35 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116595

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|default-initialization of   |default-initialization of
                   |vfloat32m1x4_t causes ICE   |vfloat32m1x4_t (RISCV V) or
                   |                            |svfloat32x4_t (Armv9-a SVE)
                   |                            |causes ICE
          Component|target                      |c++

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The same ICE happens with SVE:
```
#include <arm_sve.h>

void transpose4x4_ps()
{
    svfloat32x4_t _r = svfloat32x4_t();
}
```

^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) causes ICE
  2024-09-04  5:31 [Bug target/116595] New: default-initialization of vfloat32m1x4_t causes ICE pinskia at gcc dot gnu.org
  2024-09-04  5:35 ` [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) " pinskia at gcc dot gnu.org
@ 2024-09-04  6:05 ` kito at gcc dot gnu.org
  2024-09-04  6:07 ` pinskia at gcc dot gnu.org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: kito at gcc dot gnu.org @ 2024-09-04  6:05 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116595

--- Comment #2 from Kito Cheng <kito at gcc dot gnu.org> ---
Hmmm, it's not well defined in the rvv intrinsic doc, but I suppose this should
at least work (compile-able) without crash, also it seems works fine on GCC 14

^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) causes ICE
  2024-09-04  5:31 [Bug target/116595] New: default-initialization of vfloat32m1x4_t causes ICE pinskia at gcc dot gnu.org
  2024-09-04  5:35 ` [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) " pinskia at gcc dot gnu.org
  2024-09-04  6:05 ` kito at gcc dot gnu.org
@ 2024-09-04  6:07 ` pinskia at gcc dot gnu.org
  2024-09-04  6:09 ` pinskia at gcc dot gnu.org
  2024-09-04  6:30 ` kito at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-09-04  6:07 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116595

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Kito Cheng from comment #2)
> Hmmm, it's not well defined in the rvv intrinsic doc, but I suppose this
> should at least work (compile-able) without crash, also it seems works fine
> on GCC 14

It might be a checking assert I didn't check.

^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) causes ICE
  2024-09-04  5:31 [Bug target/116595] New: default-initialization of vfloat32m1x4_t causes ICE pinskia at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2024-09-04  6:07 ` pinskia at gcc dot gnu.org
@ 2024-09-04  6:09 ` pinskia at gcc dot gnu.org
  2024-09-04  6:30 ` kito at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-09-04  6:09 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116595

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-checking

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Yes it is a checking assert:
gcc_checking_assert (is_constant ());

^ permalink raw reply	[flat|nested] 6+ messages in thread
* [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) causes ICE
  2024-09-04  5:31 [Bug target/116595] New: default-initialization of vfloat32m1x4_t causes ICE pinskia at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2024-09-04  6:09 ` pinskia at gcc dot gnu.org
@ 2024-09-04  6:30 ` kito at gcc dot gnu.org
  4 siblings, 0 replies; 6+ messages in thread
From: kito at gcc dot gnu.org @ 2024-09-04  6:30 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116595

--- Comment #5 from Kito Cheng <kito at gcc dot gnu.org> ---
GCC 14 with enable checking will trigger that as well, thanks for remind that
detail, I forgot trunk will enable checking by default but release branch isn't

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2024-09-04  6:30 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2024-09-04  5:31 [Bug target/116595] New: default-initialization of vfloat32m1x4_t causes ICE pinskia at gcc dot gnu.org
2024-09-04  5:35 ` [Bug c++/116595] default-initialization of vfloat32m1x4_t (RISCV V) or svfloat32x4_t (Armv9-a SVE) " pinskia at gcc dot gnu.org
2024-09-04  6:05 ` kito at gcc dot gnu.org
2024-09-04  6:07 ` pinskia at gcc dot gnu.org
2024-09-04  6:09 ` pinskia at gcc dot gnu.org
2024-09-04  6:30 ` kito at gcc dot gnu.org

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