diff options
| -rw-r--r-- | absl/crc/internal/cpu_detect.cc | 10 | ||||
| -rw-r--r-- | absl/random/internal/randen_detect.cc | 4 |
2 files changed, 11 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, diff --git a/absl/random/internal/randen_detect.cc b/absl/random/internal/randen_detect.cc index 6dababa3..bdeab877 100644 --- a/absl/random/internal/randen_detect.cc +++ b/absl/random/internal/randen_detect.cc @@ -45,6 +45,10 @@ #if defined(ABSL_INTERNAL_USE_X86_CPUID) #if defined(_WIN32) || defined(_WIN64) #include <intrin.h> // NOLINT(build/include_order) +#elif ABSL_HAVE_BUILTIN(__cpuid) +// MSVC-equivalent __cpuid intrinsic declaration for clang-like compilers +// for non-Windows build environments. +extern void __cpuid(int[4], int); #else // MSVC-equivalent __cpuid intrinsic function. static void __cpuid(int cpu_info[4], int info_type) { |