libstdc++: Require SSE2 for std::simd [PR124722]
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Commit Message
From: Matthias Kretz <m.kretz@gsi.de>
Without SSE2 double precision uses excess precision, leading to test
failures. For now, std::simd remains a tech preview that simply is
disabled without SSE2.
libstdc++-v3/ChangeLog:
PR libstdc++/124722
* include/bits/version.def: Check for __SSE2__ rather than x86.
* include/bits/version.h: Regenerate.
* testsuite/std/simd/arithmetic.cc: Build with -msse2.
* testsuite/std/simd/arithmetic_expensive.cc: Likewise.
* testsuite/std/simd/creation.cc: Likewise.
* testsuite/std/simd/creation_expensive.cc: Likewise.
* testsuite/std/simd/loads.cc: Likewise.
* testsuite/std/simd/loads_expensive.cc: Likewise.
* testsuite/std/simd/mask.cc: Likewise.
* testsuite/std/simd/mask2.cc: Likewise.
* testsuite/std/simd/mask2_expensive.cc: Likewise.
* testsuite/std/simd/mask_expensive.cc: Likewise.
* testsuite/std/simd/reductions.cc: Likewise.
* testsuite/std/simd/reductions_expensive.cc: Likewise.
* testsuite/std/simd/shift_left.cc: Likewise.
* testsuite/std/simd/shift_left_expensive.cc: Likewise.
* testsuite/std/simd/shift_right.cc: Likewise.
* testsuite/std/simd/shift_right_expensive.cc: Likewise.
* testsuite/std/simd/simd_alg.cc: Likewise.
* testsuite/std/simd/simd_alg_expensive.cc: Likewise.
* testsuite/std/simd/sse_intrin.cc: Likewise.
* testsuite/std/simd/stores.cc: Likewise.
* testsuite/std/simd/stores_expensive.cc: Likewise.
* testsuite/std/simd/traits_common.cc: Likewise.
* testsuite/std/simd/traits_math.cc: Likewise.
Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
---
libstdc++-v3/include/bits/version.def | 2 +-
libstdc++-v3/include/bits/version.h | 2 +-
libstdc++-v3/testsuite/std/simd/arithmetic.cc | 1 +
libstdc++-v3/testsuite/std/simd/arithmetic_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/creation.cc | 1 +
libstdc++-v3/testsuite/std/simd/creation_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/loads.cc | 1 +
libstdc++-v3/testsuite/std/simd/loads_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/mask.cc | 1 +
libstdc++-v3/testsuite/std/simd/mask2.cc | 1 +
libstdc++-v3/testsuite/std/simd/mask2_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/mask_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/reductions.cc | 1 +
libstdc++-v3/testsuite/std/simd/reductions_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/shift_left.cc | 1 +
libstdc++-v3/testsuite/std/simd/shift_left_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/shift_right.cc | 1 +
libstdc++-v3/testsuite/std/simd/shift_right_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/simd_alg.cc | 1 +
libstdc++-v3/testsuite/std/simd/simd_alg_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/sse_intrin.cc | 1 +
libstdc++-v3/testsuite/std/simd/stores.cc | 1 +
libstdc++-v3/testsuite/std/simd/stores_expensive.cc | 1 +
libstdc++-v3/testsuite/std/simd/traits_common.cc | 1 +
libstdc++-v3/testsuite/std/simd/traits_math.cc | 1 +
25 files changed, 25 insertions(+), 2 deletions(-)
Comments
On Mon, 6 Apr 2026, 15:18 Matthias Kretz, <MatthiasKretz@gmx.net> wrote:
> From: Matthias Kretz <m.kretz@gsi.de>
>
> Without SSE2 double precision uses excess precision, leading to test
> failures. For now, std::simd remains a tech preview that simply is
> disabled without SSE2.
>
OK
> libstdc++-v3/ChangeLog:
>
> PR libstdc++/124722
> * include/bits/version.def: Check for __SSE2__ rather than x86.
> * include/bits/version.h: Regenerate.
> * testsuite/std/simd/arithmetic.cc: Build with -msse2.
> * testsuite/std/simd/arithmetic_expensive.cc: Likewise.
> * testsuite/std/simd/creation.cc: Likewise.
> * testsuite/std/simd/creation_expensive.cc: Likewise.
> * testsuite/std/simd/loads.cc: Likewise.
> * testsuite/std/simd/loads_expensive.cc: Likewise.
> * testsuite/std/simd/mask.cc: Likewise.
> * testsuite/std/simd/mask2.cc: Likewise.
> * testsuite/std/simd/mask2_expensive.cc: Likewise.
> * testsuite/std/simd/mask_expensive.cc: Likewise.
> * testsuite/std/simd/reductions.cc: Likewise.
> * testsuite/std/simd/reductions_expensive.cc: Likewise.
> * testsuite/std/simd/shift_left.cc: Likewise.
> * testsuite/std/simd/shift_left_expensive.cc: Likewise.
> * testsuite/std/simd/shift_right.cc: Likewise.
> * testsuite/std/simd/shift_right_expensive.cc: Likewise.
> * testsuite/std/simd/simd_alg.cc: Likewise.
> * testsuite/std/simd/simd_alg_expensive.cc: Likewise.
> * testsuite/std/simd/sse_intrin.cc: Likewise.
> * testsuite/std/simd/stores.cc: Likewise.
> * testsuite/std/simd/stores_expensive.cc: Likewise.
> * testsuite/std/simd/traits_common.cc: Likewise.
> * testsuite/std/simd/traits_math.cc: Likewise.
>
> Signed-off-by: Matthias Kretz <m.kretz@gsi.de>
> ---
> libstdc++-v3/include/bits/version.def | 2 +-
> libstdc++-v3/include/bits/version.h | 2 +-
> libstdc++-v3/testsuite/std/simd/arithmetic.cc | 1 +
> libstdc++-v3/testsuite/std/simd/arithmetic_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/creation.cc | 1 +
> libstdc++-v3/testsuite/std/simd/creation_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/loads.cc | 1 +
> libstdc++-v3/testsuite/std/simd/loads_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/mask.cc | 1 +
> libstdc++-v3/testsuite/std/simd/mask2.cc | 1 +
> libstdc++-v3/testsuite/std/simd/mask2_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/mask_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/reductions.cc | 1 +
> libstdc++-v3/testsuite/std/simd/reductions_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/shift_left.cc | 1 +
> libstdc++-v3/testsuite/std/simd/shift_left_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/shift_right.cc | 1 +
> libstdc++-v3/testsuite/std/simd/shift_right_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/simd_alg.cc | 1 +
> libstdc++-v3/testsuite/std/simd/simd_alg_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/sse_intrin.cc | 1 +
> libstdc++-v3/testsuite/std/simd/stores.cc | 1 +
> libstdc++-v3/testsuite/std/simd/stores_expensive.cc | 1 +
> libstdc++-v3/testsuite/std/simd/traits_common.cc | 1 +
> libstdc++-v3/testsuite/std/simd/traits_math.cc | 1 +
> 25 files changed, 25 insertions(+), 2 deletions(-)
>
> diff --git a/libstdc++-v3/include/bits/version.def b/libstdc++-v3/include/
> bits/version.def
> index 1265f01757c..cfb90533ce4 100644
> --- a/libstdc++-v3/include/bits/version.def
> +++ b/libstdc++-v3/include/bits/version.def
> @@ -2359,7 +2359,7 @@ ftms = {
> cxxmin = 26;
> extra_cond = "__cpp_structured_bindings >= 202411L "
> "&& __cpp_expansion_statements >= 202411L "
> - "&& (__x86_64__ || __i386__)"; // TODO: lift initial restriction to
> x86
> + "&& __SSE2__"; // TODO: add more targets
> hosted = yes;
> };
> };
> diff --git a/libstdc++-v3/include/bits/version.h
> b/libstdc++-v3/include/bits/
> version.h
> index 00f352089f7..22dd31b9d32 100644
> --- a/libstdc++-v3/include/bits/version.h
> +++ b/libstdc++-v3/include/bits/version.h
> @@ -2627,7 +2627,7 @@
> #undef __glibcxx_want_contracts
>
> #if !defined(__cpp_lib_simd)
> -# if (__cplusplus > 202302L) && _GLIBCXX_HOSTED &&
> (__cpp_structured_bindings >= 202411L && __cpp_expansion_statements >=
> 202411L
> && (__x86_64__ || __i386__))
> +# if (__cplusplus > 202302L) && _GLIBCXX_HOSTED &&
> (__cpp_structured_bindings >= 202411L && __cpp_expansion_statements >=
> 202411L
> && __SSE2__)
> # define __glibcxx_simd 202506L
> # if defined(__glibcxx_want_all) || defined(__glibcxx_want_simd)
> # endif
> diff --git a/libstdc++-v3/testsuite/std/simd/arithmetic.cc b/libstdc++-v3/
> testsuite/std/simd/arithmetic.cc
> index 5d605255f5c..e662a26866c 100644
> --- a/libstdc++-v3/testsuite/std/simd/arithmetic.cc
> +++ b/libstdc++-v3/testsuite/std/simd/arithmetic.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
>
> diff --git a/libstdc++-v3/testsuite/std/simd/arithmetic_expensive.cc b/
> libstdc++-v3/testsuite/std/simd/arithmetic_expensive.cc
> index 3a476058c7a..e62fe53b5e1 100644
> --- a/libstdc++-v3/testsuite/std/simd/arithmetic_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/arithmetic_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/creation.cc b/libstdc++-v3/
> testsuite/std/simd/creation.cc
> index 905c09d6449..f567281cdc9 100644
> --- a/libstdc++-v3/testsuite/std/simd/creation.cc
> +++ b/libstdc++-v3/testsuite/std/simd/creation.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
>
> diff --git a/libstdc++-v3/testsuite/std/simd/creation_expensive.cc
> b/libstdc+
> +-v3/testsuite/std/simd/creation_expensive.cc
> index cdb3eba5baf..0f54f3d5d24 100644
> --- a/libstdc++-v3/testsuite/std/simd/creation_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/creation_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/loads.cc b/libstdc++-v3/
> testsuite/std/simd/loads.cc
> index 8d48b8c55c8..90790a46da3 100644
> --- a/libstdc++-v3/testsuite/std/simd/loads.cc
> +++ b/libstdc++-v3/testsuite/std/simd/loads.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
> #include <numeric>
> diff --git a/libstdc++-v3/testsuite/std/simd/loads_expensive.cc
> b/libstdc++-
> v3/testsuite/std/simd/loads_expensive.cc
> index 79ac8700b87..f409d0b9c00 100644
> --- a/libstdc++-v3/testsuite/std/simd/loads_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/loads_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/mask.cc
> b/libstdc++-v3/testsuite/
> std/simd/mask.cc
> index 9bfa356862c..ebd9dc7728d 100644
> --- a/libstdc++-v3/testsuite/std/simd/mask.cc
> +++ b/libstdc++-v3/testsuite/std/simd/mask.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
> #include <utility>
> diff --git a/libstdc++-v3/testsuite/std/simd/mask2.cc b/libstdc++-v3/
> testsuite/std/simd/mask2.cc
> index 4e65eac4164..d4345c12243 100644
> --- a/libstdc++-v3/testsuite/std/simd/mask2.cc
> +++ b/libstdc++-v3/testsuite/std/simd/mask2.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
> #include <utility>
> diff --git a/libstdc++-v3/testsuite/std/simd/mask2_expensive.cc
> b/libstdc++-
> v3/testsuite/std/simd/mask2_expensive.cc
> index d3943874f54..c2a018badac 100644
> --- a/libstdc++-v3/testsuite/std/simd/mask2_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/mask2_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-require-effective-target run_expensive_tests }
> // { dg-timeout-factor 2 }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/mask_expensive.cc
> b/libstdc++-v3/
> testsuite/std/simd/mask_expensive.cc
> index dadfd3df879..3f3a89e1d4b 100644
> --- a/libstdc++-v3/testsuite/std/simd/mask_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/mask_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/reductions.cc b/libstdc++-v3/
> testsuite/std/simd/reductions.cc
> index d40b01f509b..b97eb1be609 100644
> --- a/libstdc++-v3/testsuite/std/simd/reductions.cc
> +++ b/libstdc++-v3/testsuite/std/simd/reductions.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
>
> diff --git a/libstdc++-v3/testsuite/std/simd/reductions_expensive.cc b/
> libstdc++-v3/testsuite/std/simd/reductions_expensive.cc
> index 52507c499d0..c4cab956aa3 100644
> --- a/libstdc++-v3/testsuite/std/simd/reductions_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/reductions_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/shift_left.cc b/libstdc++-v3/
> testsuite/std/simd/shift_left.cc
> index 1a7cc195851..111643657e2 100644
> --- a/libstdc++-v3/testsuite/std/simd/shift_left.cc
> +++ b/libstdc++-v3/testsuite/std/simd/shift_left.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
>
> diff --git a/libstdc++-v3/testsuite/std/simd/shift_left_expensive.cc b/
> libstdc++-v3/testsuite/std/simd/shift_left_expensive.cc
> index c0179503ce9..b7fe4f2f5e6 100644
> --- a/libstdc++-v3/testsuite/std/simd/shift_left_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/shift_left_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/shift_right.cc b/libstdc++-v3/
> testsuite/std/simd/shift_right.cc
> index 99ae451ffd8..3adee7ffdbf 100644
> --- a/libstdc++-v3/testsuite/std/simd/shift_right.cc
> +++ b/libstdc++-v3/testsuite/std/simd/shift_right.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
>
> diff --git a/libstdc++-v3/testsuite/std/simd/shift_right_expensive.cc b/
> libstdc++-v3/testsuite/std/simd/shift_right_expensive.cc
> index 2171d8aea05..8136224e491 100644
> --- a/libstdc++-v3/testsuite/std/simd/shift_right_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/shift_right_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/simd_alg.cc b/libstdc++-v3/
> testsuite/std/simd/simd_alg.cc
> index 98da15e11e3..03ba83de8d4 100644
> --- a/libstdc++-v3/testsuite/std/simd/simd_alg.cc
> +++ b/libstdc++-v3/testsuite/std/simd/simd_alg.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
> #include <utility>
> diff --git a/libstdc++-v3/testsuite/std/simd/simd_alg_expensive.cc
> b/libstdc+
> +-v3/testsuite/std/simd/simd_alg_expensive.cc
> index 066c3f43e87..6f162a4b23a 100644
> --- a/libstdc++-v3/testsuite/std/simd/simd_alg_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/simd_alg_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/sse_intrin.cc b/libstdc++-v3/
> testsuite/std/simd/sse_intrin.cc
> index 7baa4118c0c..483adb7dc2b 100644
> --- a/libstdc++-v3/testsuite/std/simd/sse_intrin.cc
> +++ b/libstdc++-v3/testsuite/std/simd/sse_intrin.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
>
> diff --git a/libstdc++-v3/testsuite/std/simd/stores.cc b/libstdc++-v3/
> testsuite/std/simd/stores.cc
> index d5721f7daa2..259b2a98f49 100644
> --- a/libstdc++-v3/testsuite/std/simd/stores.cc
> +++ b/libstdc++-v3/testsuite/std/simd/stores.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include "test_setup.h"
>
> diff --git a/libstdc++-v3/testsuite/std/simd/stores_expensive.cc
> b/libstdc++-
> v3/testsuite/std/simd/stores_expensive.cc
> index 36ee941d85d..3244331210c 100644
> --- a/libstdc++-v3/testsuite/std/simd/stores_expensive.cc
> +++ b/libstdc++-v3/testsuite/std/simd/stores_expensive.cc
> @@ -1,5 +1,6 @@
> // { dg-do run { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
> // { dg-require-effective-target run_expensive_tests }
>
> diff --git a/libstdc++-v3/testsuite/std/simd/traits_common.cc
> b/libstdc++-v3/
> testsuite/std/simd/traits_common.cc
> index 4ee126ccc97..ecbceef06bf 100644
> --- a/libstdc++-v3/testsuite/std/simd/traits_common.cc
> +++ b/libstdc++-v3/testsuite/std/simd/traits_common.cc
> @@ -1,5 +1,6 @@
> // { dg-do compile { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
> // { dg-timeout-factor 2 }
>
> #include <simd>
> diff --git a/libstdc++-v3/testsuite/std/simd/traits_math.cc b/libstdc++-v3/
> testsuite/std/simd/traits_math.cc
> index 2e9339e918c..fc71ff9e359 100644
> --- a/libstdc++-v3/testsuite/std/simd/traits_math.cc
> +++ b/libstdc++-v3/testsuite/std/simd/traits_math.cc
> @@ -1,5 +1,6 @@
> // { dg-do compile { target c++26 } }
> // { dg-require-effective-target x86 }
> +// { dg-additional-options "-msse2" }
>
> #include <simd>
> #include <stdfloat>
> --
> ──────────────────────────────────────────────────────────────────────────
> Dr. Matthias Kretz https://mattkretz.github.io
> GSI Helmholtz Center for Heavy Ion Research https://gsi.de
> std::simd
> ──────────────────────────────────────────────────────────────────────────
>
>
>
>
>
bits/version.def
@@ -2359,7 +2359,7 @@ ftms = {
cxxmin = 26;
extra_cond = "__cpp_structured_bindings >= 202411L "
"&& __cpp_expansion_statements >= 202411L "
- "&& (__x86_64__ || __i386__)"; // TODO: lift initial restriction to x86
+ "&& __SSE2__"; // TODO: add more targets
hosted = yes;
};
};
version.h
@@ -2627,7 +2627,7 @@
#undef __glibcxx_want_contracts
#if !defined(__cpp_lib_simd)
-# if (__cplusplus > 202302L) && _GLIBCXX_HOSTED &&
(__cpp_structured_bindings >= 202411L && __cpp_expansion_statements >= 202411L
&& (__x86_64__ || __i386__))
+# if (__cplusplus > 202302L) && _GLIBCXX_HOSTED &&
(__cpp_structured_bindings >= 202411L && __cpp_expansion_statements >= 202411L
&& __SSE2__)
# define __glibcxx_simd 202506L
# if defined(__glibcxx_want_all) || defined(__glibcxx_want_simd)
# endif
testsuite/std/simd/arithmetic.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
libstdc++-v3/testsuite/std/simd/arithmetic_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/creation.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
+-v3/testsuite/std/simd/creation_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/loads.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
#include <numeric>
v3/testsuite/std/simd/loads_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
std/simd/mask.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
#include <utility>
testsuite/std/simd/mask2.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
#include <utility>
v3/testsuite/std/simd/mask2_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-require-effective-target run_expensive_tests }
// { dg-timeout-factor 2 }
testsuite/std/simd/mask_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/reductions.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
libstdc++-v3/testsuite/std/simd/reductions_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/shift_left.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
libstdc++-v3/testsuite/std/simd/shift_left_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/shift_right.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
libstdc++-v3/testsuite/std/simd/shift_right_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/simd_alg.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
#include <utility>
+-v3/testsuite/std/simd/simd_alg_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/sse_intrin.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
testsuite/std/simd/stores.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include "test_setup.h"
v3/testsuite/std/simd/stores_expensive.cc
@@ -1,5 +1,6 @@
// { dg-do run { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
// { dg-require-effective-target run_expensive_tests }
testsuite/std/simd/traits_common.cc
@@ -1,5 +1,6 @@
// { dg-do compile { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
// { dg-timeout-factor 2 }
#include <simd>
testsuite/std/simd/traits_math.cc
@@ -1,5 +1,6 @@
// { dg-do compile { target c++26 } }
// { dg-require-effective-target x86 }
+// { dg-additional-options "-msse2" }
#include <simd>
#include <stdfloat>