NOTE: you may have to manually edit Makefile to optimize for your CPU (especially if you compile on ARM, please edit PARAMS_NEON).
Auto-detected optimization parameters: -msse -msse2 -msse3 -msse4.1 -msse4.2 -msse4 -mfpmath=sse

rm -f dumpvect*.vect
gcc -std=gnu99 -O3 -ffast-math -fdump-tree-vect-details -dumpbase dumpvect -msse -msse2 -msse3  -msse4.1 -msse4.2 -msse4 -mfpmath=sse fft_fftw.c libcsdr_wrapper.c  -g -lm -lrt -lfftw3f -DUSE_FFTW -DLIBCSDR_GPL -DUSE_IMA_ADPCM -Wno-unused-result -trigraphs -fpic -shared -Wl,-soname,libcsdr.so.0.15 -o libcsdr.so.0.15
./parsevect dumpvect*.vect


Auto-vectorization built into gcc can increase the execution speed of algorithms with automatic 
generation of SIMD instructions if the CPU is capable.
We parse the output of the vectorizer to analyze which loops could be optimized (thus speeded up) this way. 
Warning! The result may be different on different CPU architectures...

Colors: 
  - can't be vectorized
  - successfully vectorized
  - not intended to be vectorized (not important)

libcsdr.c:123:5: note: LOOP VECTORIZED  normalize_fir_f: normalize pass 2 
libcsdr.c:121:5: note: LOOP VECTORIZED  normalize_fir_f: normalize pass 1 
libcsdr.c:136:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed  firdes_lowpass_f: calculate taps 
libcsdr.c:156:5: note: not vectorized: multiple nested loops.  firdes_bandpass_c 
libcsdr.c:162:14: note: not vectorized: number of iterations cannot be computed.  firdes_bandpass_c 
libcsdr.c:161:14: note: not vectorized: number of iterations cannot be computed.  firdes_bandpass_c 
libcsdr.c:193:5: note: not vectorized: multiple nested loops.  shift_math_cc 
libcsdr.c:204:14: note: not vectorized: number of iterations cannot be computed.  shift_math_cc: normalize phase 
libcsdr.c:203:14: note: not vectorized: number of iterations cannot be computed.  shift_math_cc: normalize phase 
libcsdr.c:217:5: note: LOOP VECTORIZED   
libcsdr.c:237:5: note: not vectorized: multiple nested loops.  shift_math_cc 
libcsdr.c:262:14: note: not vectorized: number of iterations cannot be computed.  shift_math_cc: normalize phase 
libcsdr.c:261:14: note: not vectorized: number of iterations cannot be computed.  shift_math_cc: normalize phase 
libcsdr.c:276:5: note: not vectorized: multiple nested loops.   
libcsdr.c:280:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:279:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:303:10: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:302:10: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:294:5: note: LOOP VECTORIZED  shift_unroll_cc 
libcsdr.c:311:5: note: not vectorized: unsupported data-type complex float   
libcsdr.c:432:10: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:431:10: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:417:5: note: not vectorized: unsupported use in stmt.  shift_addfast_cc 
libcsdr.c:541:9: note: not vectorized: multiple nested loops.  fir_decimate_cc: i loop 
libcsdr.c:543:9: note: LOOP VECTORIZED  fir_decimate_cc: q loop 
libcsdr.c:541:9: note: LOOP VECTORIZED  fir_decimate_cc: i loop 
libcsdr.c:590:9: note: not vectorized: multiple nested loops.   
libcsdr.c:590:9: note: not vectorized: multiple nested loops.   
libcsdr.c:597:13: note: not vectorized: number of iterations cannot be computed.  fir_interpolate_cc: i loop 
libcsdr.c:596:13: note: not vectorized: number of iterations cannot be computed.  fir_interpolate_cc: i loop 
libcsdr.c:618:15: note: not vectorized: control flow in loop.   
libcsdr.c:624:9: note: LOOP VECTORIZED  rational_resampler_ff (inner loop) 
libcsdr.c:678:5: note: LOOP VECTORIZED  fir_one_pass_ff 
libcsdr.c:699:5: note: not vectorized: multiple nested loops.  fractional_decimator_ff 
libcsdr.c:678:5: note: LOOP VECTORIZED  fir_one_pass_ff 
libcsdr.c:678:5: note: LOOP VECTORIZED  fir_one_pass_ff 
libcsdr.c:678:5: note: LOOP VECTORIZED  fir_one_pass_ff 
libcsdr.c:727:5: note: not vectorized: control flow in loop.   
libcsdr.c:730:9: note: not vectorized: control flow in loop.   
libcsdr.c:763:5: note: not vectorized: multiple nested loops.  fractional_decimator_ff 
libcsdr.c:784:9: note: LOOP VECTORIZED   
libcsdr.c:774:9: note: not vectorized: control flow in loop.   
libcsdr.c:777:13: note: not vectorized: control flow in loop.   
libcsdr.c:769:13: note: not vectorized: control flow in loop.   
libcsdr.c:678:5: note: LOOP VECTORIZED  fir_one_pass_ff 
libcsdr.c:771:13: note: LOOP VECTORIZED   
libcsdr.c:843:5: note: LOOP VECTORIZED  apply_fir_fft_cc: add overlap 
libcsdr.c:837:5: note: LOOP VECTORIZED  apply_fir_fft_cc: normalize by fft_size 
libcsdr.c:825:5: note: LOOP VECTORIZED  apply_fir_fft_cc: multiplication 
libcsdr.c:869:5: note: LOOP VECTORIZED  amdemod: sqrt 
libcsdr.c:864:5: note: LOOP VECTORIZED  amdemod: i*i+q*q 
libcsdr.c:888:5: note: LOOP VECTORIZED  amdemod_estimator 
libcsdr.c:911:5: note: not vectorized, possible dependence between data-refs *_13 and *_16  dcblock_f 
libcsdr.c:935:5: note: LOOP VECTORIZED  fastdcblock_ff: remove DC component 
libcsdr.c:927:5: note: LOOP VECTORIZED  fastdcblock_ff: calculate block average 
libcsdr.c:975:5: note: LOOP VECTORIZED  fastagc_ff: apply gain 
libcsdr.c:959:5: note: LOOP VECTORIZED  fastagc_ff: peak search 
libcsdr.c:1009:5: note: not vectorized: unsupported use in stmt.  fmdemod_atan_novect 
libcsdr.c:1009:5: note: not vectorized: no grouped stores in basic block.  fmdemod_atan_novect 
libcsdr.c:1027:5: note: LOOP VECTORIZED  fmdemod_quadri_novect_cf 
libcsdr.c:1065:5: note: LOOP VECTORIZED  fmdemod_quadri_cf: output division 
libcsdr.c:1061:5: note: LOOP VECTORIZED  fmdemod_quadri_cf: output denomiator 
libcsdr.c:1057:5: note: LOOP VECTORIZED  fmdemod_quadri_cf: output numerator 
libcsdr.c:1052:5: note: LOOP VECTORIZED  fmdemod_quadri_cf: di 
libcsdr.c:1046:5: note: LOOP VECTORIZED  fmdemod_quadri_cf: dq 
libcsdr.c:1094:5: note: not vectorized, possible dependence between data-refs *_15 and *_18  deemphasis_wfm_ff 
libcsdr.c:1124:9: note: LOOP VECTORIZED  deemphasis_nfm_ff: inner loop 
libcsdr.c:1132:5: note: LOOP VECTORIZED  limit_ff 
libcsdr.c:1141:5: note: LOOP VECTORIZED  gain_ff 
libcsdr.c:1147:5: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1157:5: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1177:5: note: LOOP VECTORIZED   
libcsdr.c:1176:5: note: LOOP VECTORIZED   
libcsdr.c:1183:5: note: not vectorized: multiple nested loops.   
libcsdr.c:1187:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1186:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1196:5: note: LOOP VECTORIZED   
libcsdr.c:1225:9: note: not vectorized: control flow in loop.  log2n 
libcsdr.c:1240:9: note: not vectorized: control flow in loop.  next_pow2 
libcsdr.c:1248:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed  apply_window_c 
libcsdr.c:1261:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed  precalculate_window 
libcsdr.c:1271:5: note: LOOP VECTORIZED  apply_precalculated_window_c 
libcsdr.c:1280:2: note: LOOP VECTORIZED  apply_precalculated_window_f 
libcsdr.c:1289:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed  apply_window_f 
libcsdr.c:1302:5: note: LOOP VECTORIZED  logpower_cf: pass 3 
libcsdr.c:1300:5: note: not vectorized: relevant stmt not supported: _20 = __builtin_log10f (_19);  logpower_cf: pass 2 
libcsdr.c:1298:5: note: LOOP VECTORIZED  logpower_cf: pass 1 
libcsdr.c:1307:5: note: LOOP VECTORIZED  logpower_cf: pass 1 
libcsdr.c:1313:5: note: LOOP VECTORIZED  logpower_cf: pass 3 
libcsdr.c:1311:5: note: not vectorized: relevant stmt not supported: _6 = __builtin_log10f (_4);  logpower_cf: pass 2 
libcsdr.c:1319:5: note: LOOP VECTORIZED   
libcsdr.c:1544:9: note: not vectorized: control flow in loop.   
libcsdr.c:1560:22: note: not vectorized: multiple nested loops.   
libcsdr.c:1564:17: note: not vectorized: not suitable for scatter store *_29 = 0;   
libcsdr.c:1564:17: note: not vectorized: not suitable for scatter store *_14 = iftmp.10_41;   
libcsdr.c:1559:13: note: not vectorized: control flow in loop.   
libcsdr.c:1618:9: note: not vectorized: control flow in loop.   
libcsdr.c:1674:13: note: not vectorized: multiple nested loops.   
libcsdr.c:1710:9: note: LOOP VECTORIZED   
libcsdr.c:1690:9: note: not vectorized: control flow in loop.   
libcsdr.c:1697:13: note: LOOP VECTORIZED   
libcsdr.c:1676:35: note: not vectorized: control flow in loop.   
libcsdr.c:1734:5: note: not vectorized: control flow in loop.   
libcsdr.c:1737:13: note: not vectorized: control flow in loop.   
libcsdr.c:1769:5: note: LOOP VECTORIZED   
libcsdr.c:1776:5: note: not vectorized: unsupported data-type complex float   
libcsdr.c:1787:5: note: not vectorized: multiple nested loops.   
libcsdr.c:1788:9: note: not vectorized: control flow in loop.   
libcsdr.c:1789:13: note: LOOP VECTORIZED   
libcsdr.c:1796:5: note: not vectorized: control flow in loop.   
libcsdr.c:1798:9: note: LOOP VECTORIZED   
libcsdr.c:1812:5: note: LOOP VECTORIZED   
libcsdr.c:1821:5: note: not vectorized: unsupported use in stmt.   
libcsdr.c:1831:9: note: not vectorized: unsupported use in stmt.   
libcsdr.c:1837:9: note: not vectorized: unsupported use in stmt.   
libcsdr.c:1837:9: note: not vectorized: no grouped stores in basic block.   
libcsdr.c:1878:9: note: not vectorized: multiple nested loops.   
libcsdr.c:1905:18: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1904:18: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1890:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1889:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1880:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1879:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:1948:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1948:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1942:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1942:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1935:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1935:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1933:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1931:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:1924:5: note: not vectorized: not suitable for gather load _6 = MEM[(int * {ref-all})addr.2029_164];   
libcsdr.c:1924:5: note: not vectorized: no grouped stores in basic block.   
libcsdr.c:1993:9: note: not vectorized: control flow in loop.   
libcsdr.c:2110:5: note: not vectorized: multiple nested loops.   
libcsdr.c:2140:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:2139:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:2125:22: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:2205:5: note: not vectorized: complicated access pattern.   
libcsdr.c:2253:9: note: LOOP VECTORIZED  firdes_add_peak_c: normalize pass 2 
libcsdr.c:2249:9: note: not vectorized: unsupported use in stmt.  firdes_add_peak_c: normalize pass 1 
libcsdr.c:2240:9: note: LOOP VECTORIZED   
libcsdr.c:2227:5: note: not vectorized: multiple nested loops.  firdes_add_peak_c: calculate taps 
libcsdr.c:2235:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:2234:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:2264:5: note: not vectorized: control flow in loop.   
libcsdr.c:2267:9: note: not vectorized: complicated access pattern.   
libcsdr.c:2279:5: note: not vectorized: control flow in loop.   
libcsdr.c:2282:9: note: LOOP VECTORIZED   
libcsdr.c:2314:5: note: LOOP VECTORIZED   
libcsdr.c:2297:5: note: not vectorized: unsupported use in stmt.   
libcsdr.c:2297:5: note: not vectorized: no grouped stores in basic block.   
libcsdr.c:2297:5: note: not vectorized: control flow in loop.   
libcsdr.c:2322:5: note: not vectorized: multiple nested loops.   
libcsdr.c:2328:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:2327:14: note: not vectorized: number of iterations cannot be computed.   
libcsdr.c:2338:5: note: not vectorized: control flow in loop.   
libcsdr.c:2342:9: note: LOOP VECTORIZED   
libcsdr.c:2365:5: note: LOOP VECTORIZED  convert_u8_f 
libcsdr.c:2370:5: note: LOOP VECTORIZED  convert_s8_f 
libcsdr.c:2375:5: note: LOOP VECTORIZED  convert_s16_f 
libcsdr.c:2380:5: note: LOOP VECTORIZED  convert_f_u8 
libcsdr.c:2387:5: note: LOOP VECTORIZED  convert_f_s8 
libcsdr.c:2397:5: note: LOOP VECTORIZED  convert_f_s16 
libcsdr.c:2406:19: note: not vectorized: relevant stmt not supported: _12 = BIT_FIELD_REF <_6, 8, 8>;   
libcsdr.c:2414:10: note: not vectorized: relevant stmt not supported: _24 = BIT_FIELD_REF <_21, 8, 16>;   
libcsdr.c:2427:19: note: LOOP VECTORIZED   
libcsdr.c:2432:10: note: LOOP VECTORIZED   
libcsdr.c:2448:5: note: LOOP VECTORIZED   
libcsdr.c:2459:5: note: not vectorized: unsupported data-type complex double   
libcsdr.c:2477:5: note: LOOP VECTORIZED   
libcsdr.c:2487:5: note: not vectorized: unsupported data-type complex double   
libcsdr.c:2487:5: note: not vectorized: no grouped stores in basic block.   
libcsdr.c:2501:5: note: not vectorized: loop contains function calls or data references that cannot be analyzed   
libcsdr.c:2520:5: note: LOOP VECTORIZED   
libcsdr.c:2525:5: note: LOOP VECTORIZED   
libcsdr.c:2536:5: note: LOOP VECTORIZED  trivial_vectorize: should pass :-) 
libcsdr_gpl.c:50:7: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: normalize starting_phase 
libcsdr_gpl.c:49:7: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: normalize starting_phase 
libcsdr_gpl.c:37:2: note: not vectorized: unsupported use in stmt.  shift_addition_cc: work 
libcsdr_gpl.c:77:7: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: normalize starting_phase 
libcsdr_gpl.c:76:7: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: normalize starting_phase 
libcsdr_gpl.c:64:2: note: not vectorized: unsupported use in stmt.  shift_addition_cc: work 
libcsdr_gpl.c:104:2: note: not vectorized: control flow in loop.  shift_addition_cc: work 
libcsdr_gpl.c:111:8: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: normalize phase 
libcsdr_gpl.c:158:7: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: normalize starting_phase 
libcsdr_gpl.c:157:7: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: normalize starting_phase 
libcsdr_gpl.c:142:2: note: not vectorized: number of iterations cannot be computed.  shift_addition_cc: work 
libcsdr_gpl.c:198:2: note: not vectorized: unsupported use in stmt.  agc_ff 
libcsdr_gpl.c:198:2: note: not vectorized: no grouped stores in basic block.  agc_ff 
ima_adpcm.c:157:2: note: not vectorized: not suitable for gather load step_63 = _stepSizeTable[state$index_24];   
ima_adpcm.c:157:2: note: not vectorized: no grouped stores in basic block.   
ima_adpcm.c:168:2: note: not vectorized: not suitable for gather load step_59 = _stepSizeTable[state$index_18];   
fastddc.c:50:8: note: not vectorized: number of iterations cannot be computed.   
fastddc.c:42:20: note: not vectorized: control flow in loop.   
fastddc.c:95:2: note: LOOP VECTORIZED   
fastddc.c:154:2: note: LOOP VECTORIZED  fastddc_inv_cc: normalize by size 
fastddc.c:144:2: note: LOOP VECTORIZED   
fastddc.c:126:2: note: not vectorized: not suitable for gather load _21 = *_20;   
fastddc.c:116:2: note: LOOP VECTORIZED   
gcc -std=gnu99 -O3 -ffast-math -fdump-tree-vect-details -dumpbase dumpvect -msse -msse2 -msse3  -msse4.1 -msse4.2 -msse4 -mfpmath=sse csdr.c -g -lm -lrt -lfftw3f -DUSE_FFTW -DLIBCSDR_GPL -DUSE_IMA_ADPCM -L. -lcsdr -Wno-unused-result -trigraphs -o csdr
In file included from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:27,
                 from csdr.c:34:
/usr/include/features.h:184:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
 # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
   ^~~~~~~
g++ -O3 -ffast-math -fdump-tree-vect-details -dumpbase dumpvect -msse -msse2 -msse3  -msse4.1 -msse4.2 -msse4 -mfpmath=sse nmux.cpp tsmpool.cpp -g -lm -lrt -lfftw3f -DUSE_FFTW -DLIBCSDR_GPL -DUSE_IMA_ADPCM -L. -lcsdr -lpthread -Wno-unused-result -trigraphs -o nmux
tsmpool.cpp: In member function ‘int tsmpool::remove_thread(tsmthread_t*)’:
tsmpool.cpp:56:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^