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CPU (Windows): refines ARMv8.4-A detection to require LSE2

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李通洲
2025-09-22 14:08:29 +08:00
parent 2ae9d01200
commit cdcdb78b97
1 changed files with 2 additions and 2 deletions
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src/detection/cpu/cpu.c
+2 -2
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@@ -429,7 +429,7 @@ void ffCPUDetectByCpuid(FFCPUResult* cpu)
// ARMv8.4-A
// My CPU (Apple M1 Pro in VM) does support LSE2, but Windows doesn't detect it for some reason
// bool has_lse2 = IsProcessorFeaturePresent(PF_ARM_LSE2_AVAILABLE); // Large System Extensions version 2, optional from v8.2
bool has_lse2 = IsProcessorFeaturePresent(PF_ARM_LSE2_AVAILABLE); // Large System Extensions version 2, optional from v8.2
bool has_dp = IsProcessorFeaturePresent(PF_ARM_V82_DP_INSTRUCTIONS_AVAILABLE); // DotProd, optional from v8.1 (*)
// ARMv9.0-A
@@ -475,7 +475,7 @@ void ffCPUDetectByCpuid(FFCPUResult* cpu)
cpu->march = "ARMv8.7-A";
} else if (has_i8mm && has_bf16) {
cpu->march = "ARMv8.6-A";
} else if (has_dp) {
} else if (has_dp && has_lse2) {
cpu->march = "ARMv8.4-A";
} else if (has_lrcpc && has_jscvt) {
cpu->march = "ARMv8.3-A";