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tests/checkasm: add overflow test for hevc_add_res

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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.xu@intel.com>
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Linjie Fu 2020-03-09 22:55:28 +08:00 committed by Anton Khirnov
parent 69b9548dd6
commit ddf6ca3a0e
1 changed files with 6 additions and 2 deletions
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8
tests/checkasm/hevc_add_res.c
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@ -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);
}
}
}