diff options
| author | Koen Vos <koenvos@users.noreply.github.com> | 2016-02-19 10:38:31 +0300 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-07-17 22:05:55 +0300 |
| commit | 8abd50ea1a5976a4058f7ba294f55b9dc9940968 (patch) | |
| tree | 345738559889c69764c344c8f1721a415c27d814 /silk/float/pitch_analysis_core_FLP.c | |
| parent | 6adea4b93ce15b5c6eab1be29da6e01806ee8853 (diff) | |
undo some loop unrolling
Diffstat (limited to 'silk/float/pitch_analysis_core_FLP.c')
| -rw-r--r-- | silk/float/pitch_analysis_core_FLP.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/silk/float/pitch_analysis_core_FLP.c b/silk/float/pitch_analysis_core_FLP.c index fc47c6ef..b3716937 100644 --- a/silk/float/pitch_analysis_core_FLP.c +++ b/silk/float/pitch_analysis_core_FLP.c @@ -158,16 +158,9 @@ opus_int silk_pitch_analysis_core_FLP( /* O Voicing estimate: 0 voiced, silk_short2float_array( frame_4kHz, frame_4_FIX, frame_length_4kHz ); /* Low-pass filter */ - silk_assert( (frame_length_4kHz & 3) == 0 ); - for( i = frame_length_4kHz - 1; i > 4; i -= 4 ) { - frame_4kHz[ i - 0 ] = silk_ADD_SAT16( frame_4kHz[ i - 0 ], frame_4kHz[ i - 1 ] ); - frame_4kHz[ i - 1 ] = silk_ADD_SAT16( frame_4kHz[ i - 1 ], frame_4kHz[ i - 2 ] ); - frame_4kHz[ i - 2 ] = silk_ADD_SAT16( frame_4kHz[ i - 2 ], frame_4kHz[ i - 3 ] ); - frame_4kHz[ i - 3 ] = silk_ADD_SAT16( frame_4kHz[ i - 3 ], frame_4kHz[ i - 4 ] ); + for( i = frame_length_4kHz - 1; i > 0; i-- ) { + frame_4kHz[ i ] = silk_ADD_SAT16( frame_4kHz[ i ], frame_4kHz[ i - 1 ] ); } - frame_4kHz[ i - 0 ] = silk_ADD_SAT16( frame_4kHz[ i - 0 ], frame_4kHz[ i - 1 ] ); - frame_4kHz[ i - 1 ] = silk_ADD_SAT16( frame_4kHz[ i - 1 ], frame_4kHz[ i - 2 ] ); - frame_4kHz[ i - 2 ] = silk_ADD_SAT16( frame_4kHz[ i - 2 ], frame_4kHz[ i - 3 ] ); /****************************************************************************** * FIRST STAGE, operating in 4 khz |