LUT64-based SIGMOID microkernels for WAsm SIMD

PiperOrigin-RevId: 322094087
diff --git a/BUILD.bazel b/BUILD.bazel
index 6605bcd..e92731e 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -705,6 +705,12 @@
     "src/f32-sigmoid/gen/wasmsimd-p5-div-x16.c",
     "src/f32-sigmoid/gen/wasmsimd-p5-div-x20.c",
     "src/f32-sigmoid/gen/wasmsimd-p5-div-x24.c",
+    "src/f32-sigmoid/gen/wasmsimd-lut64-p2-div-x4.c",
+    "src/f32-sigmoid/gen/wasmsimd-lut64-p2-div-x8.c",
+    "src/f32-sigmoid/gen/wasmsimd-lut64-p2-div-x12.c",
+    "src/f32-sigmoid/gen/wasmsimd-lut64-p2-div-x16.c",
+    "src/f32-sigmoid/gen/wasmsimd-lut64-p2-div-x20.c",
+    "src/f32-sigmoid/gen/wasmsimd-lut64-p2-div-x24.c",
     "src/f32-vbinary/gen/vadd-minmax-wasmsimd-arm-x4.c",
     "src/f32-vbinary/gen/vadd-minmax-wasmsimd-arm-x8.c",
     "src/f32-vbinary/gen/vadd-minmax-wasmsimd-x86-x4.c",