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Diffstat (limited to 'absl/crc/internal/cpu_detect.cc')
-rw-r--r--absl/crc/internal/cpu_detect.cc10
1 files changed, 7 insertions, 3 deletions
diff --git a/absl/crc/internal/cpu_detect.cc b/absl/crc/internal/cpu_detect.cc
index d61b7018..4e29d0fa 100644
--- a/absl/crc/internal/cpu_detect.cc
+++ b/absl/crc/internal/cpu_detect.cc
@@ -34,9 +34,11 @@ namespace crc_internal {
#if defined(__x86_64__) || defined(_M_X64)
-namespace {
-
-#if !defined(_WIN32) && !defined(_WIN64)
+#if ABSL_HAVE_BUILTIN(__cpuid)
+// MSVC-equivalent __cpuid intrinsic declaration for clang-like compilers
+// for non-Windows build environments.
+extern void __cpuid(int[4], int);
+#elif !defined(_WIN32) && !defined(_WIN64)
// MSVC defines this function for us.
// https://learn.microsoft.com/en-us/cpp/intrinsics/cpuid-cpuidex
static void __cpuid(int cpu_info[4], int info_type) {
@@ -47,6 +49,8 @@ static void __cpuid(int cpu_info[4], int info_type) {
}
#endif // !defined(_WIN32) && !defined(_WIN64)
+namespace {
+
enum class Vendor {
kUnknown,
kIntel,