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new a0d23706e8 aarch64: Switch to a more correct Windows flag for
detecting I8MM
a0d23706e8 is described below
commit a0d23706e8a5154d34c8b921e2273432084d19d3
Author: Martin Storsjö <[email protected]>
AuthorDate: Wed Mar 4 15:08:29 2026 +0200
Commit: Martin Storsjö <[email protected]>
CommitDate: Wed Mar 4 21:46:18 2026 +0000
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
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