From 739b498719c6ee1b97e12726322373ae71234125 Mon Sep 17 00:00:00 2001
From: Jan Beich <jbeich@FreeBSD.org>
Date: Mon, 13 Jan 2020 21:36:54 +0000
Subject: [PATCH] Switch to optimized ffsl supported on more platforms
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In file included from Source/GmmLib/TranslationTable/GmmAuxTable.cpp:30:
Source/GmmLib/TranslationTable/../TranslationTable/GmmUmdTranslationTable.h: In function ‘int _BitScanForward(uint32_t*, uint32_t)’:
Source/GmmLib/TranslationTable/../TranslationTable/GmmUmdTranslationTable.h:63:9: error: ‘ffsl’ was not declared in this scope
     i = ffsl(mask);
         ^~~~
Source/GmmLib/TranslationTable/../TranslationTable/GmmUmdTranslationTable.h:63:9: note: suggested alternative: ‘ffs’
     i = ffsl(mask);
         ^~~~
         ffs
---
 Source/GmmLib/TranslationTable/GmmUmdTranslationTable.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/Source/GmmLib/TranslationTable/GmmUmdTranslationTable.h b/Source/GmmLib/TranslationTable/GmmUmdTranslationTable.h
index acb82695..0bdd24d4 100644
--- a/Source/GmmLib/TranslationTable/GmmUmdTranslationTable.h
+++ b/Source/GmmLib/TranslationTable/GmmUmdTranslationTable.h
@@ -60,12 +60,7 @@ static inline int _BitScanForward(uint32_t *index, uint32_t mask)
 {
     int i;
 
-#ifdef __ANDROID__
-    i = ffs(mask);
-#else
-    i = ffsl(mask);
-#endif
-
+    i = __builtin_ffsl(mask);
     if(i > 0)
     {
         *index = (uint32_t)(i - 1);