From: James Almer <jamrial@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH] x86/intmath: use _bzhi_u32 instead of the GCC internal builtin
Date: Thu, 17 Nov 2022 17:10:24 -0300
Message-ID: <20221117201024.551-1-jamrial@gmail.com> (raw)
GCC does not recommend using their __builtin_ia32* builtins, so use the Intel
defined one instead.
Signed-off-by: James Almer <jamrial@gmail.com>
---
libavutil/x86/intmath.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavutil/x86/intmath.h b/libavutil/x86/intmath.h
index 8a6b5ae261..2c701646ff 100644
--- a/libavutil/x86/intmath.h
+++ b/libavutil/x86/intmath.h
@@ -82,7 +82,8 @@ static av_always_inline av_const int ff_ctzll_x86(long long v)
#if defined(__BMI2__)
#if AV_GCC_VERSION_AT_LEAST(5,1)
-#define av_mod_uintp2 __builtin_ia32_bzhi_si
+#include <immintrin.h>
+#define av_mod_uintp2 _bzhi_u32
#elif HAVE_INLINE_ASM
/* GCC releases before 5.1.0 have a broken bzhi builtin, so for those we
* implement it using inline assembly
--
2.38.1
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