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>