[Bug target/115556] New: error: this operation requires the SVE ISA extension

[Bug target/115556] New: error: this operation requires the SVE ISA extension

[malat at debian dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115556

            Bug ID: 115556
           Summary: error: this operation requires the SVE ISA extension
           Product: gcc
           Version: 13.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: malat at debian dot org
  Target Milestone: ---

highway source code fails to compile on aarch64/gcc-13 and -O3. Error is:

> this operation requires the SVE ISA extension

Reproduced under godbold

https://gcc.godbolt.org/z/vrzs8zc87

Running cvise ATM to remove hwy deps

[Bug target/115556] error: this operation requires the SVE ISA extension

[malat at debian dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115556

--- Comment #1 from Mathieu Malaterre <malat at debian dot org> ---
Debian build:

*
https://buildd.debian.org/status/fetch.php?pkg=highway&arch=arm64&ver=1.2.1%7Egit20240610.f384204-2&stamp=1718119953&raw=0

[Bug target/115556] error: this operation requires the SVE ISA extension

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115556

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Same with 14.1.0 - how's this a GCC bug and not a highway bug (google likely
only tests llvm)?

[Bug target/115556] error: this operation requires the SVE ISA extension

[malat at debian dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115556

--- Comment #3 from Mathieu Malaterre <malat at debian dot org> ---
(In reply to Richard Biener from comment #2)
> Same with 14.1.0 - how's this a GCC bug and not a highway bug (google likely
> only tests llvm)?

This was indicated upstream:

* https://github.com/google/highway/issues/2250#issuecomment-2180487337

GCC 12.3 seems to happily compiles it, I assumed so. Anyway cvise reduction
still running. We shall see soon.

Thanks

[Bug target/115556] error: this operation requires the SVE ISA extension

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115556

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The trunk error message might be better:
```
In file included from
/opt/compiler-explorer/libs/highway/trunk/hwy/highway.h:588,
                 from
/opt/compiler-explorer/libs/highway/trunk/hwy/contrib/math/math-inl.h:28,
                 from ./example.cpp:5,
                 from
/opt/compiler-explorer/libs/highway/trunk/hwy/foreach_target.h:163,
                 from <source>:4:
/opt/compiler-explorer/libs/highway/trunk/hwy/ops/arm_neon-inl.h: In function
'hwy::N_NEON::Vec128<unsigned char, 16>
hwy::N_NEON::detail::BitCastToByte(hwy::N_NEON::Vec128<unsigned int, 4>)':
/opt/compiler-explorer/libs/highway/trunk/hwy/ops/arm_neon-inl.h:829:23: error:
inlining failed in call to 'always_inline' 'hwy::N_NEON::Vec128<T,
N>::Vec128(Raw) [with T = unsigned char; long unsigned int N = 16]': target
specific option mismatch
  829 |   HWY_INLINE explicit Vec128(const Raw raw) : raw(raw) {}
      |                       ^~~~~~
/opt/compiler-explorer/libs/highway/trunk/hwy/ops/arm_neon-inl.h:83:72: note:
called from here
   83 |         HWY_NEON_EVAL(prefix##infix##suffix,
HWY_NEON_BUILD_ARG_##args));    \
      |                                                                       
^
/opt/compiler-explorer/libs/highway/trunk/hwy/ops/arm_neon-inl.h:124:3: note:
in expansion of macro 'HWY_NEON_DEF_FUNCTION'
  124 |   HWY_NEON_DEF_FUNCTION(uint32, 4, name, prefix##q, infix, u32, args) \
      |   ^~~~~~~~~~~~~~~~~~~~~
/opt/compiler-explorer/libs/highway/trunk/hwy/ops/arm_neon-inl.h:1421:1: note:
in expansion of macro 'HWY_NEON_DEF_FUNCTION_UINT_32'
 1421 | HWY_NEON_DEF_FUNCTION_UINT_32(BitCastToByte, vreinterpret, _u8_,
HWY_CAST_TO_U8)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```

[Bug target/115556] error: this operation requires the SVE ISA extension

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115556

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |109753

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The GCC 13/14 issue is really PR 109753.
The trunk issue is most likely related to PR 115403 .


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109753
[Bug 109753] [13/14 Regression] pragma GCC target causes std::vector not to
compile (always_inline on constructor)

[Bug target/115556] error: this operation requires the SVE ISA extension

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115556

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=115403
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Yes this is a dup of bug 109753.

The trunk issue is PR 115403 .

*** This bug has been marked as a duplicate of bug 109753 ***