gh-123189: [Modules/blake2module.c]: Move function definitions and their usage under the macros (#123190)

Author: Eclips4

Modules/blake2module.c

@@ -104,15 +104,19 @@ void detect_cpu_features(cpu_flags *flags) {
   }
 }
 
+#ifdef HACL_CAN_COMPILE_SIMD128
 static inline bool has_simd128(cpu_flags *flags) {
   // For now this is Intel-only, could conceivably be #ifdef'd to something
   // else.
   return flags->sse && flags->sse2 && flags->sse3 && flags->sse41 && flags->sse42 && flags->cmov;
 }
+#endif
 
+#ifdef HACL_CAN_COMPILE_SIMD256
 static inline bool has_simd256(cpu_flags *flags) {
   return flags->avx && flags->avx2;
 }
+#endif
 
 // Small mismatch between the variable names Python defines as part of configure
 // at the ones HACL* expects to be set in order to enable those headers.
@@ -151,13 +155,15 @@ blake2_get_state(PyObject *module)
     return (Blake2State *)state;
 }
 
+#if defined(HACL_CAN_COMPILE_SIMD128) || defined(HACL_CAN_COMPILE_SIMD256)
 static inline Blake2State*
 blake2_get_state_from_type(PyTypeObject *module)
 {
     void *state = _PyType_GetModuleState(module);
     assert(state != NULL);
     return (Blake2State *)state;
 }
+#endif
 
 static struct PyMethodDef blake2mod_functions[] = {
     {NULL, NULL}
@@ -311,7 +317,9 @@ static inline bool is_blake2s(blake2_impl impl) {
 }
 
 static inline blake2_impl type_to_impl(PyTypeObject *type) {
+#if defined(HACL_CAN_COMPILE_SIMD128) || defined(HACL_CAN_COMPILE_SIMD256)
     Blake2State* st = blake2_get_state_from_type(type);
+#endif
     if (!strcmp(type->tp_name, blake2b_type_spec.name)) {
 #ifdef HACL_CAN_COMPILE_SIMD256
       if (has_simd256(&st->flags))