layers: MR121, Use _BitScanForward for u_ffs on windows

The linux ffs function scans from least-significant-bit.
To match that, u_ffs on windows should use _BitScanForward instead of
_BitScanReverse.

1 files changed, 1 insertions, 1 deletions

diff --git a/layers/vk_layer_utils.h b/layers/vk_layer_utils.h
index 52a615f6..b59fe1a0 100644
--- a/layers/vk_layer_utils.h
+++ b/layers/vk_layer_utils.h
@@ -64,7 +64,7 @@ static inline int u_ffs(int val)
 {
 #ifdef WIN32
     unsigned long bit_pos = 0;
-    if (_BitScanReverse(&bit_pos, val) != 0) {
+    if (_BitScanForward(&bit_pos, val) != 0) {
         bit_pos += 1;
     }
     return bit_pos;