WAsm SIMD version of PPMM microkernel

PiperOrigin-RevId: 322944335
diff --git a/test/f32-ppmm-minmax.cc b/test/f32-ppmm-minmax.cc
index f5fdc9b..88766ee 100644
--- a/test/f32-ppmm-minmax.cc
+++ b/test/f32-ppmm-minmax.cc
@@ -2050,6 +2050,642 @@
 #endif  // !XNN_ARCH_ASMJS && !XNN_ARCH_WASM && !XNN_COMPILER_MSVC && !XNN_COMPILER_ICC
 
 
+#if XNN_ARCH_WASMSIMD
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, k_eq_1) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, strided_cn) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .cn_stride(11)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, k_eq_1_strided_a) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .a_stride(3)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, k_eq_1_subtile) {
+    for (uint32_t m = 1; m <= 4; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(1)
+          .iterations(1)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, k_eq_1_subtile_m) {
+    for (uint32_t m = 1; m <= 4; m++) {
+      GemmMicrokernelTester()
+        .mr(4)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(m)
+        .n(8)
+        .k(1)
+        .iterations(1)
+        .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, k_eq_1_subtile_n) {
+    for (uint32_t n = 1; n <= 8; n++) {
+      GemmMicrokernelTester()
+        .mr(4)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(4)
+        .n(n)
+        .k(1)
+        .iterations(1)
+        .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, k_gt_1) {
+    for (size_t k = 2; k < 10; k++) {
+      GemmMicrokernelTester()
+        .mr(4)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(4)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, k_gt_1_subtile) {
+    for (size_t k = 2; k < 10; k++) {
+      for (uint32_t m = 1; m <= 4; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_gt_8) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_gt_8_strided_cn) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(8)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_gt_8_strided_a) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(n)
+          .k(k)
+          .a_stride(7)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_gt_8_subtile) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        for (uint32_t m = 1; m <= 4; m++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_div_8) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_div_8_strided_cn) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(n)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_div_8_strided_a) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(n)
+          .k(k)
+          .a_stride(7)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, n_div_8_subtile) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        for (uint32_t m = 1; m <= 4; m++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, strided_cm_subtile) {
+    for (size_t k = 1; k <= 5; k += 2) {
+      for (uint32_t m = 1; m <= 4; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .cm_stride(11)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, qmin) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .qmin(128)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, qmax) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .qmax(128)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_ARM, strided_cm) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .cm_stride(11)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm);
+  }
+#endif  // XNN_ARCH_WASMSIMD
+
+
+#if XNN_ARCH_WASMSIMD
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, k_eq_1) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, strided_cn) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .cn_stride(11)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, k_eq_1_strided_a) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .a_stride(3)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, k_eq_1_subtile) {
+    for (uint32_t m = 1; m <= 4; m++) {
+      for (uint32_t n = 1; n <= 8; n++) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(m)
+          .n(n)
+          .k(1)
+          .iterations(1)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, k_eq_1_subtile_m) {
+    for (uint32_t m = 1; m <= 4; m++) {
+      GemmMicrokernelTester()
+        .mr(4)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(m)
+        .n(8)
+        .k(1)
+        .iterations(1)
+        .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, k_eq_1_subtile_n) {
+    for (uint32_t n = 1; n <= 8; n++) {
+      GemmMicrokernelTester()
+        .mr(4)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(4)
+        .n(n)
+        .k(1)
+        .iterations(1)
+        .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, k_gt_1) {
+    for (size_t k = 2; k < 10; k++) {
+      GemmMicrokernelTester()
+        .mr(4)
+        .nr(8)
+        .kr(1)
+        .sr(1)
+        .m(4)
+        .n(8)
+        .k(k)
+        .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, k_gt_1_subtile) {
+    for (size_t k = 2; k < 10; k++) {
+      for (uint32_t m = 1; m <= 4; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_gt_8) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_gt_8_strided_cn) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(8)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_gt_8_strided_a) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(n)
+          .k(k)
+          .a_stride(7)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_gt_8_subtile) {
+    for (uint32_t n = 9; n < 16; n++) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        for (uint32_t m = 1; m <= 4; m++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_div_8) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(8)
+          .k(k)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_div_8_strided_cn) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(n)
+          .k(k)
+          .cn_stride(11)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_div_8_strided_a) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        GemmMicrokernelTester()
+          .mr(4)
+          .nr(8)
+          .kr(1)
+          .sr(1)
+          .m(4)
+          .n(n)
+          .k(k)
+          .a_stride(7)
+          .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, n_div_8_subtile) {
+    for (uint32_t n = 16; n <= 24; n += 8) {
+      for (size_t k = 1; k <= 5; k += 2) {
+        for (uint32_t m = 1; m <= 4; m++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, strided_cm_subtile) {
+    for (size_t k = 1; k <= 5; k += 2) {
+      for (uint32_t m = 1; m <= 4; m++) {
+        for (uint32_t n = 1; n <= 8; n++) {
+          GemmMicrokernelTester()
+            .mr(4)
+            .nr(8)
+            .kr(1)
+            .sr(1)
+            .m(m)
+            .n(n)
+            .k(k)
+            .cm_stride(11)
+            .iterations(1)
+            .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+        }
+      }
+    }
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, qmin) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .qmin(128)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, qmax) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .qmax(128)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+  }
+
+  TEST(F32_PPMM_MINMAX_4X8__WASMSIMD_SPLAT_X86, strided_cm) {
+    GemmMicrokernelTester()
+      .mr(4)
+      .nr(8)
+      .kr(1)
+      .sr(1)
+      .m(4)
+      .n(8)
+      .k(1)
+      .cm_stride(11)
+      .Test(xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86);
+  }
+#endif  // XNN_ARCH_WASMSIMD
+
+
 TEST(F32_PPMM_MINMAX_4X2__SCALAR, k_eq_1) {
   GemmMicrokernelTester()
     .mr(4)
diff --git a/test/f32-ppmm-minmax.yaml b/test/f32-ppmm-minmax.yaml
index 98da3b2..57207d7 100644
--- a/test/f32-ppmm-minmax.yaml
+++ b/test/f32-ppmm-minmax.yaml
@@ -14,6 +14,10 @@
   k-block: 1
 - name: xnn_f32_ppmm_minmax_ukernel_4x8__psimd
   k-block: 1
+- name: xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_arm
+  k-block: 1
+- name: xnn_f32_ppmm_minmax_ukernel_4x8__wasmsimd_splat_x86
+  k-block: 1
 - name: xnn_f32_ppmm_minmax_ukernel_4x2__scalar
   k-block: 1
 - name: xnn_f32_ppmm_minmax_ukernel_2x4__scalar