claunia/flac
1
0
Fork 0
mirror of https://github.com/claunia/flac.git synced 2025-12-16 18:54:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

stream_encoder_intrin_sse[23].c : Optimize of int32 -> uint64 conversion.

Browse Source 
Optimizes int32 -> uint64 conversion by doing zero extension (int32 ->
uint32 -> uint64) instead of sign extension (int32 -> int64 -> uint64).

Patch-from: lvqcl <lvqcl.mail@gmail.com>
This commit is contained in:
Erik de Castro Lopo
2014-09-21 08:48:17 +10:00
parent 97bcc6f51a
commit 6abc480387
2 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/libFLAC/stream_encoder_intrin_ssse3.c
View File

@@ -89,7 +89,7 @@ void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residua
mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
abs_residual_partition_sums[partition] = _mm_cvtsi128_si32(mm_sum);
abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
}
}
else { /* have to pessimistically use 64 bits for accumulator */