From 520968debbb791b5ee8a8dc4a11bd747966d7ea4 Mon Sep 17 00:00:00 2001 From: Zhao Zhili Date: Fri, 15 May 2026 21:56:53 +0800 Subject: [PATCH] avcodec/vc1dsp: always inline vc1_loop_filter vc1_loop_filter() is only reached through the six C wrappers. Clang 14 keeps it out of line with plain static inline, adding a 224-byte stack frame before the tiny bestcase path on rpi 5. gcc 12 already inlines it. rpi 5 clang 14: before after vc1_v_loop_filter4_bestcase_c 27.2 8.3 (3.3x) vc1_h_loop_filter4_bestcase_c 26.4 10.2 (2.6x) vc1_v_loop_filter8_bestcase_c 32.5 20.3 (1.6x) vc1_h_loop_filter8_bestcase_c 31.7 19.5 (1.6x) vc1_v_loop_filter16_bestcase_c 42.1 33.2 (1.3x) vc1_h_loop_filter16_bestcase_c 41.6 25.3 (1.6x) Signed-off-by: Zhao Zhili --- libavcodec/vc1dsp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/vc1dsp.c b/libavcodec/vc1dsp.c index 86b81dfc04..dd143b114c 100644 --- a/libavcodec/vc1dsp.c +++ b/libavcodec/vc1dsp.c @@ -196,8 +196,8 @@ static av_always_inline int vc1_filter_line(uint8_t *src, ptrdiff_t stride, int * @param pq block quantizer * @see 8.6 */ -static inline void vc1_loop_filter(uint8_t *src, ptrdiff_t step, ptrdiff_t stride, - int len, int pq) +static av_always_inline void vc1_loop_filter(uint8_t *src, ptrdiff_t step, + ptrdiff_t stride, int len, int pq) { int i; int filt3;