1 files changed, 5 insertions, 3 deletions
diff --git a/ruy/path.h b/ruy/path.h
index 94d3089..a3cd939 100644
--- a/ruy/path.h
+++ b/ruy/path.h
@@ -77,9 +77,11 @@ enum class Path : std::uint8_t {
 #endif  // RUY_PLATFORM_ARM
 
 #if RUY_PLATFORM_X86
-  // Optimized for AVX2.
-  kAvx2 = 0x10,
+  // Optimized for AVX2+FMA.
+  // Compiled with -mavx2 -mfma.
+  kAvx2Fma = 0x10,
   // Optimized for AVX-512.
+  // Compiled with -mavx512f -mavx512vl -mavx512cd -mavx512bw -mavx512dq.
   kAvx512 = 0x20,
 #endif  // RUY_PLATFORM_X86
 };
@@ -143,7 +145,7 @@ constexpr Path kExtraArchPaths = Path::kNone;
 constexpr Path kDefaultArchPaths = Path::kNeon;
 constexpr Path kExtraArchPaths = Path::kNone;
 #elif RUY_PLATFORM_X86
-constexpr Path kDefaultArchPaths = Path::kAvx2 | Path::kAvx512;
+constexpr Path kDefaultArchPaths = Path::kAvx2Fma | Path::kAvx512;
 constexpr Path kExtraArchPaths = Path::kNone;
 #else
 constexpr Path kDefaultArchPaths = Path::kNone;