iOS 6x8 microkernel based on Cortex-A75 but with X18 avoided.
Use x14 for C pointer and reload cn_stride during clamping into x0.

PiperOrigin-RevId: 302555155
diff --git a/test/f32-gemm.cc b/test/f32-gemm.cc
index ec9b4b4..e56931e 100644
--- a/test/f32-gemm.cc
+++ b/test/f32-gemm.cc
@@ -7037,6 +7037,507 @@
 
 
 #if XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .cn_stride(11)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .a_stride(11)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(8)
+          .iterations(1)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile_m) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(m)
+        .n(8)
+        .k(8)
+        .iterations(1)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile_n) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 1; n <= 8; n++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(n)
+        .k(8)
+        .iterations(1)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(16)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_16_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(16)
+      .a_stride(19)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_16_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(16)
+          .iterations(1)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_lt_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_lt_16_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .a_stride(19)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_lt_16_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_gt_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_gt_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .a_stride(19)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_gt_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_div_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_div_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .a_stride(83)
+        .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, k_div_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8_strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(n)
+          .k(k)
+          .a_stride(43)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        for (uint32_t m = 1; m <= 6; m++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8_strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(n)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(n)
+          .k(k)
+          .a_stride(43)
+          .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        for (uint32_t m = 1; m <= 6; m++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, strided_cm_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k <= 40; k += 9) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .cm_stride(11)
+            .iterations(1)
+            .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, qmin) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .qmin(128)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, qmax) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .qmax(128)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMM_6X8__AARCH64_NEONFMA_IOS, strided_cm) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .cm_stride(11)
+      .Test(xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+#endif  // XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
+
+
+#if XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
   TEST(F32_GEMM_1X12__AARCH64_NEONFMA_CORTEX_A53, k_eq_4) {
     TEST_REQUIRES_ARM_NEON_FMA;
     GemmMicrokernelTester()
diff --git a/test/f32-gemm.yaml b/test/f32-gemm.yaml
index 4ad8646..2408331 100644
--- a/test/f32-gemm.yaml
+++ b/test/f32-gemm.yaml
@@ -58,6 +58,10 @@
   k-block: 8
   pipelined: true
   assembly: true
+- name: xnn_f32_gemm_ukernel_6x8__aarch64_neonfma_ios
+  k-block: 8
+  pipelined: true
+  assembly: true
 - name: xnn_f32_gemm_ukernel_1x12__aarch64_neonfma_cortex_a53
   k-block: 4
   pipelined: true
diff --git a/test/f32-gemminc.cc b/test/f32-gemminc.cc
index ead6477..0a6da77 100644
--- a/test/f32-gemminc.cc
+++ b/test/f32-gemminc.cc
@@ -6491,6 +6491,507 @@
 
 
 #if XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .cn_stride(11)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .a_stride(11)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(8)
+          .iterations(1)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile_m) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(m)
+        .n(8)
+        .k(8)
+        .iterations(1)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile_n) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 1; n <= 8; n++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(n)
+        .k(8)
+        .iterations(1)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(16)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_16_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(16)
+      .a_stride(19)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_eq_16_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(16)
+          .iterations(1)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_lt_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_lt_16_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .a_stride(19)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_lt_16_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_gt_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_gt_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .a_stride(19)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_gt_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_div_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_div_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .a_stride(83)
+        .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, k_div_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_gt_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_gt_8_strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_gt_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(n)
+          .k(k)
+          .a_stride(43)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_gt_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        for (uint32_t m = 1; m <= 6; m++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_div_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_div_8_strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(n)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_div_8_strided_a) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(n)
+          .k(k)
+          .a_stride(43)
+          .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, n_div_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        for (uint32_t m = 1; m <= 6; m++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, strided_cm_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k <= 40; k += 9) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .cm_stride(11)
+            .iterations(1)
+            .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, qmin) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .qmin(128)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, qmax) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .qmax(128)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_GEMMINC_6X8__AARCH64_NEONFMA_IOS, strided_cm) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .cm_stride(11)
+      .Test(xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios);
+  }
+#endif  // XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
+
+
+#if XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
   TEST(F32_GEMMINC_1X12__AARCH64_NEONFMA_CORTEX_A53, k_eq_4) {
     TEST_REQUIRES_ARM_NEON_FMA;
     GemmMicrokernelTester()
diff --git a/test/f32-gemminc.yaml b/test/f32-gemminc.yaml
index cb4670a..08d7c53 100644
--- a/test/f32-gemminc.yaml
+++ b/test/f32-gemminc.yaml
@@ -53,6 +53,10 @@
   k-block: 8
   pipelined: true
   assembly: true
+- name: xnn_f32_gemminc_ukernel_6x8__aarch64_neonfma_ios
+  k-block: 8
+  pipelined: true
+  assembly: true
 - name: xnn_f32_gemminc_ukernel_1x12__aarch64_neonfma_cortex_a53
   k-block: 4
   pipelined: true
diff --git a/test/f32-igemm.cc b/test/f32-igemm.cc
index 64d2bb2..fa54ce7 100644
--- a/test/f32-igemm.cc
+++ b/test/f32-igemm.cc
@@ -9473,6 +9473,505 @@
 
 
 #if XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .cn_stride(11)
+      .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(8)
+          .iterations(1)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile_m) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(m)
+        .n(8)
+        .k(8)
+        .iterations(1)
+        .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_8_subtile_n) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 1; n <= 8; n++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(n)
+        .k(8)
+        .iterations(1)
+        .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(16)
+      .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_eq_16_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t m = 1; m <= 6; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(16)
+          .iterations(1)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_lt_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_lt_16_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k < 16; k++) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_gt_16) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_gt_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 17; k < 16; k++) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_div_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, k_div_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 24; k <= 80; k += 8) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8_strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        for (uint32_t m = 1; m <= 6; m++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8_strided_cn) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(n)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        for (uint32_t m = 1; m <= 6; m++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, small_kernel) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k <= 40; k += 9) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .ks(3)
+        .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, small_kernel_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k <= 40; k += 9) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .ks(3)
+            .iterations(1)
+            .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_gt_8_small_kernel) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .ks(3)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, n_div_8_small_kernel) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .ks(3)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, strided_cm_subtile) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k <= 40; k += 9) {
+      for (uint32_t m = 1; m <= 6; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(6)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .cm_stride(11)
+            .iterations(1)
+            .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+        }
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, a_offset) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (size_t k = 1; k <= 40; k += 9) {
+      GemmMicrokernelTester()
+        .mr(6)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(6)
+        .n(8)
+        .k(k)
+        .ks(3)
+        .a_offset(251)
+        .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, zero) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    for (uint32_t mz = 0; mz < 6; mz++) {
+      for (size_t k = 1; k <= 40; k += 9) {
+        GemmMicrokernelTester()
+          .mr(6)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(6)
+          .n(8)
+          .k(k)
+          .ks(3)
+          .a_offset(251)
+          .zero_index(mz)
+          .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+      }
+    }
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, qmin) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .qmin(128)
+      .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, qmax) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .qmax(128)
+      .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+
+  TEST(F32_IGEMM_6X8__AARCH64_NEONFMA_IOS, strided_cm) {
+    TEST_REQUIRES_ARM_NEON_FMA;
+    GemmMicrokernelTester()
+      .mr(6)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(6)
+      .n(8)
+      .k(8)
+      .cm_stride(11)
+      .Test(xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios);
+  }
+#endif  // XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
+
+
+#if XNN_ARCH_ARM64 && XNN_ENABLE_ASSEMBLY
   TEST(F32_IGEMM_1X12__AARCH64_NEONFMA_CORTEX_A53, k_eq_4) {
     TEST_REQUIRES_ARM_NEON_FMA;
     GemmMicrokernelTester()
diff --git a/test/f32-igemm.yaml b/test/f32-igemm.yaml
index 5d742c3..4801bd2 100644
--- a/test/f32-igemm.yaml
+++ b/test/f32-igemm.yaml
@@ -73,6 +73,10 @@
   k-block: 8
   pipelined: true
   assembly: true
+- name: xnn_f32_igemm_ukernel_6x8__aarch64_neonfma_ios
+  k-block: 8
+  pipelined: true
+  assembly: true
 - name: xnn_f32_igemm_ukernel_1x12__aarch64_neonfma_cortex_a53
   k-block: 4
   pipelined: true