Here's a new version of a patch that fixes a problem with MSVC2105 update2, but it doesn't disable any optimization, so the resulting encoding performance should be almost unaffected by this workaround.
MSVC compiles
abs_residual_partition_sums[partition] =
(FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
into this:
movq QWORD PTR [rsi], xmm2
while it should be
movd eax, xmm2
mov QWORD PTR [rsi], rax
With this patch, MSVC emits
movq QWORD PTR [rsi], xmm2
mov DWORD PTR [rsi+4], r9d
so the price of this workaround is 1 extra write instruction per partition.
msvc_bug_v2.patch
Description: Binary data
_______________________________________________ flac-dev mailing list flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
