1 // Copyright 2017 Google Inc.
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
7 // http://www.apache.org/licenses/LICENSE-2.0
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
15 #include "internal/cpuid_x86.h"
17 #if defined(CPU_FEATURES_ARCH_X86) && defined(CPU_FEATURES_COMPILER_MSC)
18 #include <immintrin.h>
19 #include <intrin.h> // For __cpuidex()
21 Leaf CpuId(uint32_t leaf_id) {
24 __cpuid(data, leaf_id);
32 uint32_t GetXCR0Eax(void) { return _xgetbv(0); }
34 #endif // defined(CPU_FEATURES_ARCH_X86) && defined(CPU_FEATURES_COMPILER_MSC)