Add overflow test for hevc_add_res when int16_t coeff = -32768.
The result of C is good, while ASM is not.
To verify:
make fate-checkasm-hevc_add_res
ffmpeg/tests/checkasm/checkasm --test=hevc_add_res
./checkasm --test=hevc_add_res
checkasm: using random seed 679391863
MMXEXT:
hevc_add_res_4x4_8_mmxext (hevc_add_res.c:69)
- hevc_add_res.add_residual [FAILED]
SSE2:
hevc_add_res_8x8_8_sse2 (hevc_add_res.c:69)
hevc_add_res_16x16_8_sse2 (hevc_add_res.c:69)
hevc_add_res_32x32_8_sse2 (hevc_add_res.c:69)
- hevc_add_res.add_residual [FAILED]
AVX:
hevc_add_res_8x8_8_avx (hevc_add_res.c:69)
hevc_add_res_16x16_8_avx (hevc_add_res.c:69)
hevc_add_res_32x32_8_avx (hevc_add_res.c:69)
- hevc_add_res.add_residual [FAILED]
AVX2:
hevc_add_res_32x32_8_avx2 (hevc_add_res.c:69)
- hevc_add_res.add_residual [FAILED]
checkasm: 8 of 14 tests have failed
Signed-off-by: Xu Guangxin <guangxin...@intel.com>
Signed-off-by: Linjie Fu <linjie...@intel.com>
---
[v2/v3]: test 2x cases to make sure enough random residuals
Should be applied after the 3 fixing patch, otherwise this
would break fate.
[1]
https://patchwork.ffmpeg.org/project/ffmpeg/patch/1583394457-21484-1-git-send-email-linjie...@intel.com/
[2]
https://patchwork.ffmpeg.org/project/ffmpeg/patch/1583394474-21605-1-git-send-email-linjie...@intel.com/
[3]
https://patchwork.ffmpeg.org/project/ffmpeg/patch/1583394489-21717-1-git-send-email-linjie...@intel.com/
tests/checkasm/hevc_add_res.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/tests/checkasm/hevc_add_res.c b/tests/checkasm/hevc_add_res.c
index a68d574..0a3bcbb 100644
--- a/tests/checkasm/hevc_add_res.c
+++ b/tests/checkasm/hevc_add_res.c
@@ -42,7 +42,7 @@
AV_WN16A(buf + j * 2, rnd() & 0x3FF); \
} while (0)
-static void compare_add_res(int size, ptrdiff_t stride)
+static void compare_add_res(int size, ptrdiff_t stride, int overflow_test)
{
LOCAL_ALIGNED_32(int16_t, res0, [32 * 32]);
LOCAL_ALIGNED_32(int16_t, res1, [32 * 32]);
@@ -53,6 +53,8 @@ static void compare_add_res(int size, ptrdiff_t stride)
randomize_buffers(res0, size);
randomize_buffers2(dst0, size);
+ if (overflow_test)
+ res0[0] = 0x8000;
memcpy(res1, res0, sizeof(*res0) * size);
memcpy(dst1, dst0, sizeof(int16_t) * size);
@@ -73,7 +75,9 @@ static void check_add_res(HEVCDSPContext h, int bit_depth)
ptrdiff_t stride = block_size << (bit_depth > 8);
if (check_func(h.add_residual[i - 2], "hevc_add_res_%dx%d_%d",
block_size, block_size, bit_depth)) {
- compare_add_res(size, stride);
+ compare_add_res(size, stride, 0);
+ // overflow test for res = -32768
+ compare_add_res(size, stride, 1);
}
}
}
--
2.7.4
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