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| author | Martin Storsjö <martin@martin.st> | 2025-08-08 13:59:33 +0300 |
|---|---|---|
| committer | Kacper Michajłow <kasper93@gmail.com> | 2025-08-10 02:27:44 +0000 |
| commit | 8e4c904c8e30c68ea6c7da3740139bf2f4ffa907 (patch) | |
| tree | 03f07d3af256f516311ae5f5538da7716a9f3cc6 | |
| parent | 0400e05a1a2835bf8a6589a0d7d5eb2625d618a9 (diff) | |
| download | ffmpeg-8e4c904c8e30c68ea6c7da3740139bf2f4ffa907.tar.gz | |
checkasm: ac3dsp: Increase the float tolerance for sum_square_butterfly_float
Accept up to 13 ULP difference.
This fixes running "checkasm --test=ac3dsp 3044836819" on ARM.
Depending on how the SIMD implementations aggregate numbers,
larger/smaller values might not end up accumulated in exactly
the same way; the current NEON implementation for ARM aggregates
into vectors of 2 elements. If it would aggregate into vectors
of 4 elements instead, like the AArch64 version does, this particular
case would end up with a smaller difference.
| -rw-r--r-- | tests/checkasm/ac3dsp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/checkasm/ac3dsp.c b/tests/checkasm/ac3dsp.c index a8e96d793f..97732112a5 100644 --- a/tests/checkasm/ac3dsp.c +++ b/tests/checkasm/ac3dsp.c @@ -181,7 +181,7 @@ static void check_ac3_sum_square_butterfly_float(AC3DSPContext *c) { call_ref(v1, lt, rt, ELEMS); call_new(v2, lt, rt, ELEMS); - if (!float_near_ulp_array(v1, v2, 11, 4)) + if (!float_near_ulp_array(v1, v2, 13, 4)) fail(); bench_new(v2, lt, rt, ELEMS); |