PR #22379 opened by Martin Storsjö (mstorsjo) URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22379 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22379.patch
Newer revisions of WinSDK 10.0.26100.0 have exposed more flags for IsProcessorFeaturePresent; now there is a separate one for detecting specifically I8MM and not just SVE-I8MM. Switch to using this flag instead. From 36647467107fefbd1174b62a00f7052ef59bbfe0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <[email protected]> Date: Wed, 4 Mar 2026 15:08:29 +0200 Subject: [PATCH] aarch64: Switch to a more correct Windows flag for detecting I8MM Newer revisions of WinSDK 10.0.26100.0 have exposed more flags for IsProcessorFeaturePresent; now there is a separate one for detecting specifically I8MM and not just SVE-I8MM. Switch to using this flag instead. --- libavutil/aarch64/cpu.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/libavutil/aarch64/cpu.c b/libavutil/aarch64/cpu.c index f5f5e99661..6d70c97fd0 100644 --- a/libavutil/aarch64/cpu.c +++ b/libavutil/aarch64/cpu.c @@ -135,11 +135,8 @@ static int detect_flags(void) if (IsProcessorFeaturePresent(PF_ARM_V82_DP_INSTRUCTIONS_AVAILABLE)) flags |= AV_CPU_FLAG_DOTPROD; #endif -#ifdef PF_ARM_SVE_I8MM_INSTRUCTIONS_AVAILABLE - /* There's no PF_* flag that indicates whether plain I8MM is available - * or not. But if SVE_I8MM is available, that also implies that - * regular I8MM is available. */ - if (IsProcessorFeaturePresent(PF_ARM_SVE_I8MM_INSTRUCTIONS_AVAILABLE)) +#ifdef PF_ARM_V82_I8MM_INSTRUCTIONS_AVAILABLE + if (IsProcessorFeaturePresent(PF_ARM_V82_I8MM_INSTRUCTIONS_AVAILABLE)) flags |= AV_CPU_FLAG_I8MM; #endif #ifdef PF_ARM_SVE_INSTRUCTIONS_AVAILABLE -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
