Fix GCC 7 case fall through warnings

GCC 7 warns about `case` statements which are not separated by a
`break` statement. This warning can be fixed by adding a comment.

5 files changed, 275 insertions, 275 deletions

diff --git a/src/libFLAC/bitreader.c b/src/libFLAC/bitreader.c
index 75543854..baafcf33 100644
--- a/src/libFLAC/bitreader.c
+++ b/src/libFLAC/bitreader.c
@@ -119,20 +119,20 @@ static inline void crc16_update_word_(FLAC__BitReader *br, brword word)
 	register uint32_t crc = br->read_crc16;
 #if FLAC__BYTES_PER_WORD == 4
 	switch(br->crc16_align) {
-		case  0: crc = FLAC__CRC16_UPDATE((uint32_t)(word >> 24), crc);
-		case  8: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 16) & 0xff), crc);
-		case 16: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 8) & 0xff), crc);
-		case 24: br->read_crc16 = FLAC__CRC16_UPDATE((uint32_t)(word & 0xff), crc);
+		case  0: crc = FLAC__CRC16_UPDATE((uint32_t)(word >> 24), crc); /* Falls through. */
+		case  8: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 16) & 0xff), crc); /* Falls through. */
+		case 16: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 8) & 0xff), crc); /* Falls through. */
+		case 24: br->read_crc16 = FLAC__CRC16_UPDATE((uint32_t)(word & 0xff), crc); /* Falls through. */
 	}
 #elif FLAC__BYTES_PER_WORD == 8
 	switch(br->crc16_align) {
-		case  0: crc = FLAC__CRC16_UPDATE((uint32_t)(word >> 56), crc);
-		case  8: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 48) & 0xff), crc);
-		case 16: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 40) & 0xff), crc);
-		case 24: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 32) & 0xff), crc);
-		case 32: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 24) & 0xff), crc);
-		case 40: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 16) & 0xff), crc);
-		case 48: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 8) & 0xff), crc);
+		case  0: crc = FLAC__CRC16_UPDATE((uint32_t)(word >> 56), crc); /* Falls through. */
+		case  8: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 48) & 0xff), crc); /* Falls through. */
+		case 16: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 40) & 0xff), crc); /* Falls through. */
+		case 24: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 32) & 0xff), crc); /* Falls through. */
+		case 32: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 24) & 0xff), crc); /* Falls through. */
+		case 40: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 16) & 0xff), crc); /* Falls through. */
+		case 48: crc = FLAC__CRC16_UPDATE((uint32_t)((word >> 8) & 0xff), crc); /* Falls through. */
 		case 56: br->read_crc16 = FLAC__CRC16_UPDATE((uint32_t)(word & 0xff), crc);
 	}
 #else
diff --git a/src/libFLAC/lpc.c b/src/libFLAC/lpc.c
index a624c936..0673895d 100644
--- a/src/libFLAC/lpc.c
+++ b/src/libFLAC/lpc.c
@@ -486,25 +486,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 * flac_r
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * data[i-32];
-				case 31: sum += qlp_coeff[30] * data[i-31];
-				case 30: sum += qlp_coeff[29] * data[i-30];
-				case 29: sum += qlp_coeff[28] * data[i-29];
-				case 28: sum += qlp_coeff[27] * data[i-28];
-				case 27: sum += qlp_coeff[26] * data[i-27];
-				case 26: sum += qlp_coeff[25] * data[i-26];
-				case 25: sum += qlp_coeff[24] * data[i-25];
-				case 24: sum += qlp_coeff[23] * data[i-24];
-				case 23: sum += qlp_coeff[22] * data[i-23];
-				case 22: sum += qlp_coeff[21] * data[i-22];
-				case 21: sum += qlp_coeff[20] * data[i-21];
-				case 20: sum += qlp_coeff[19] * data[i-20];
-				case 19: sum += qlp_coeff[18] * data[i-19];
-				case 18: sum += qlp_coeff[17] * data[i-18];
-				case 17: sum += qlp_coeff[16] * data[i-17];
-				case 16: sum += qlp_coeff[15] * data[i-16];
-				case 15: sum += qlp_coeff[14] * data[i-15];
-				case 14: sum += qlp_coeff[13] * data[i-14];
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * data[i-13];
 				         sum += qlp_coeff[11] * data[i-12];
 				         sum += qlp_coeff[10] * data[i-11];
@@ -740,25 +740,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 * f
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
-				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
-				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
-				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
-				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
-				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
-				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
-				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
-				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
-				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
-				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
-				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
-				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
-				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
-				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
-				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
-				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
-				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
-				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
 				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
 				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
@@ -1003,25 +1003,25 @@ void FLAC__lpc_restore_signal(const FLAC__int32 * flac_restrict residual, uint32
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * data[i-32];
-				case 31: sum += qlp_coeff[30] * data[i-31];
-				case 30: sum += qlp_coeff[29] * data[i-30];
-				case 29: sum += qlp_coeff[28] * data[i-29];
-				case 28: sum += qlp_coeff[27] * data[i-28];
-				case 27: sum += qlp_coeff[26] * data[i-27];
-				case 26: sum += qlp_coeff[25] * data[i-26];
-				case 25: sum += qlp_coeff[24] * data[i-25];
-				case 24: sum += qlp_coeff[23] * data[i-24];
-				case 23: sum += qlp_coeff[22] * data[i-23];
-				case 22: sum += qlp_coeff[21] * data[i-22];
-				case 21: sum += qlp_coeff[20] * data[i-21];
-				case 20: sum += qlp_coeff[19] * data[i-20];
-				case 19: sum += qlp_coeff[18] * data[i-19];
-				case 18: sum += qlp_coeff[17] * data[i-18];
-				case 17: sum += qlp_coeff[16] * data[i-17];
-				case 16: sum += qlp_coeff[15] * data[i-16];
-				case 15: sum += qlp_coeff[14] * data[i-15];
-				case 14: sum += qlp_coeff[13] * data[i-14];
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * data[i-13];
 				         sum += qlp_coeff[11] * data[i-12];
 				         sum += qlp_coeff[10] * data[i-11];
@@ -1257,25 +1257,25 @@ void FLAC__lpc_restore_signal_wide(const FLAC__int32 * flac_restrict residual, u
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
-				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
-				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
-				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
-				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
-				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
-				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
-				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
-				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
-				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
-				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
-				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
-				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
-				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
-				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
-				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
-				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
-				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
-				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
 				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
 				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
diff --git a/src/libFLAC/lpc_intrin_avx2.c b/src/libFLAC/lpc_intrin_avx2.c
index b68511e6..8a0a94b4 100644
--- a/src/libFLAC/lpc_intrin_avx2.c
+++ b/src/libFLAC/lpc_intrin_avx2.c
@@ -343,17 +343,17 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2(const FLAC_
 		for(; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 12: sum += qlp_coeff[11] * data[i-12];
-				case 11: sum += qlp_coeff[10] * data[i-11];
-				case 10: sum += qlp_coeff[ 9] * data[i-10];
-				case 9:  sum += qlp_coeff[ 8] * data[i- 9];
-				case 8:  sum += qlp_coeff[ 7] * data[i- 8];
-				case 7:  sum += qlp_coeff[ 6] * data[i- 7];
-				case 6:  sum += qlp_coeff[ 5] * data[i- 6];
-				case 5:  sum += qlp_coeff[ 4] * data[i- 5];
-				case 4:  sum += qlp_coeff[ 3] * data[i- 4];
-				case 3:  sum += qlp_coeff[ 2] * data[i- 3];
-				case 2:  sum += qlp_coeff[ 1] * data[i- 2];
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
 				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
 			}
 			residual[i] = data[i] - (sum >> lp_quantization);
@@ -363,25 +363,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2(const FLAC_
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * data[i-32];
-				case 31: sum += qlp_coeff[30] * data[i-31];
-				case 30: sum += qlp_coeff[29] * data[i-30];
-				case 29: sum += qlp_coeff[28] * data[i-29];
-				case 28: sum += qlp_coeff[27] * data[i-28];
-				case 27: sum += qlp_coeff[26] * data[i-27];
-				case 26: sum += qlp_coeff[25] * data[i-26];
-				case 25: sum += qlp_coeff[24] * data[i-25];
-				case 24: sum += qlp_coeff[23] * data[i-24];
-				case 23: sum += qlp_coeff[22] * data[i-23];
-				case 22: sum += qlp_coeff[21] * data[i-22];
-				case 21: sum += qlp_coeff[20] * data[i-21];
-				case 20: sum += qlp_coeff[19] * data[i-20];
-				case 19: sum += qlp_coeff[18] * data[i-19];
-				case 18: sum += qlp_coeff[17] * data[i-18];
-				case 17: sum += qlp_coeff[16] * data[i-17];
-				case 16: sum += qlp_coeff[15] * data[i-16];
-				case 15: sum += qlp_coeff[14] * data[i-15];
-				case 14: sum += qlp_coeff[13] * data[i-14];
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * data[i-13];
 				         sum += qlp_coeff[11] * data[i-12];
 				         sum += qlp_coeff[10] * data[i-11];
@@ -698,17 +698,17 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2(const FLAC__in
 		for(; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 12: sum += qlp_coeff[11] * data[i-12];
-				case 11: sum += qlp_coeff[10] * data[i-11];
-				case 10: sum += qlp_coeff[ 9] * data[i-10];
-				case 9:  sum += qlp_coeff[ 8] * data[i- 9];
-				case 8:  sum += qlp_coeff[ 7] * data[i- 8];
-				case 7:  sum += qlp_coeff[ 6] * data[i- 7];
-				case 6:  sum += qlp_coeff[ 5] * data[i- 6];
-				case 5:  sum += qlp_coeff[ 4] * data[i- 5];
-				case 4:  sum += qlp_coeff[ 3] * data[i- 4];
-				case 3:  sum += qlp_coeff[ 2] * data[i- 3];
-				case 2:  sum += qlp_coeff[ 1] * data[i- 2];
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
 				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
 			}
 			residual[i] = data[i] - (sum >> lp_quantization);
@@ -718,25 +718,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2(const FLAC__in
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * data[i-32];
-				case 31: sum += qlp_coeff[30] * data[i-31];
-				case 30: sum += qlp_coeff[29] * data[i-30];
-				case 29: sum += qlp_coeff[28] * data[i-29];
-				case 28: sum += qlp_coeff[27] * data[i-28];
-				case 27: sum += qlp_coeff[26] * data[i-27];
-				case 26: sum += qlp_coeff[25] * data[i-26];
-				case 25: sum += qlp_coeff[24] * data[i-25];
-				case 24: sum += qlp_coeff[23] * data[i-24];
-				case 23: sum += qlp_coeff[22] * data[i-23];
-				case 22: sum += qlp_coeff[21] * data[i-22];
-				case 21: sum += qlp_coeff[20] * data[i-21];
-				case 20: sum += qlp_coeff[19] * data[i-20];
-				case 19: sum += qlp_coeff[18] * data[i-19];
-				case 18: sum += qlp_coeff[17] * data[i-18];
-				case 17: sum += qlp_coeff[16] * data[i-17];
-				case 16: sum += qlp_coeff[15] * data[i-16];
-				case 15: sum += qlp_coeff[14] * data[i-15];
-				case 14: sum += qlp_coeff[13] * data[i-14];
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * data[i-13];
 				         sum += qlp_coeff[11] * data[i-12];
 				         sum += qlp_coeff[10] * data[i-11];
@@ -1057,17 +1057,17 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2(const FLA
 		for(; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 12: sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
-				case 11: sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
-				case 10: sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
-				case 9:  sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
-				case 8:  sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
-				case 7:  sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
-				case 6:  sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
-				case 5:  sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
-				case 4:  sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
-				case 3:  sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
-				case 2:  sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
+				case 12: sum += qlp_coeff[11] * (FLAC__int64)data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * (FLAC__int64)data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2]; /* Falls through. */
 				case 1:  sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
 			}
 			residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
@@ -1077,25 +1077,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2(const FLA
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
-				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
-				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
-				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
-				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
-				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
-				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
-				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
-				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
-				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
-				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
-				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
-				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
-				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
-				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
-				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
-				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
-				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
-				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
 				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
 				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
diff --git a/src/libFLAC/lpc_intrin_sse2.c b/src/libFLAC/lpc_intrin_sse2.c
index d750138c..b6ea3d85 100644
--- a/src/libFLAC/lpc_intrin_sse2.c
+++ b/src/libFLAC/lpc_intrin_sse2.c
@@ -346,17 +346,17 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC_
 		for(; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 12: sum += qlp_coeff[11] * data[i-12];
-				case 11: sum += qlp_coeff[10] * data[i-11];
-				case 10: sum += qlp_coeff[ 9] * data[i-10];
-				case 9:  sum += qlp_coeff[ 8] * data[i- 9];
-				case 8:  sum += qlp_coeff[ 7] * data[i- 8];
-				case 7:  sum += qlp_coeff[ 6] * data[i- 7];
-				case 6:  sum += qlp_coeff[ 5] * data[i- 6];
-				case 5:  sum += qlp_coeff[ 4] * data[i- 5];
-				case 4:  sum += qlp_coeff[ 3] * data[i- 4];
-				case 3:  sum += qlp_coeff[ 2] * data[i- 3];
-				case 2:  sum += qlp_coeff[ 1] * data[i- 2];
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
 				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
 			}
 			residual[i] = data[i] - (sum >> lp_quantization);
@@ -366,25 +366,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC_
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * data[i-32];
-				case 31: sum += qlp_coeff[30] * data[i-31];
-				case 30: sum += qlp_coeff[29] * data[i-30];
-				case 29: sum += qlp_coeff[28] * data[i-29];
-				case 28: sum += qlp_coeff[27] * data[i-28];
-				case 27: sum += qlp_coeff[26] * data[i-27];
-				case 26: sum += qlp_coeff[25] * data[i-26];
-				case 25: sum += qlp_coeff[24] * data[i-25];
-				case 24: sum += qlp_coeff[23] * data[i-24];
-				case 23: sum += qlp_coeff[22] * data[i-23];
-				case 22: sum += qlp_coeff[21] * data[i-22];
-				case 21: sum += qlp_coeff[20] * data[i-21];
-				case 20: sum += qlp_coeff[19] * data[i-20];
-				case 19: sum += qlp_coeff[18] * data[i-19];
-				case 18: sum += qlp_coeff[17] * data[i-18];
-				case 17: sum += qlp_coeff[16] * data[i-17];
-				case 16: sum += qlp_coeff[15] * data[i-16];
-				case 15: sum += qlp_coeff[14] * data[i-15];
-				case 14: sum += qlp_coeff[13] * data[i-14];
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * data[i-13];
 				         sum += qlp_coeff[11] * data[i-12];
 				         sum += qlp_coeff[10] * data[i-11];
@@ -893,25 +893,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2(const FLAC__in
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * data[i-32];
-				case 31: sum += qlp_coeff[30] * data[i-31];
-				case 30: sum += qlp_coeff[29] * data[i-30];
-				case 29: sum += qlp_coeff[28] * data[i-29];
-				case 28: sum += qlp_coeff[27] * data[i-28];
-				case 27: sum += qlp_coeff[26] * data[i-27];
-				case 26: sum += qlp_coeff[25] * data[i-26];
-				case 25: sum += qlp_coeff[24] * data[i-25];
-				case 24: sum += qlp_coeff[23] * data[i-24];
-				case 23: sum += qlp_coeff[22] * data[i-23];
-				case 22: sum += qlp_coeff[21] * data[i-22];
-				case 21: sum += qlp_coeff[20] * data[i-21];
-				case 20: sum += qlp_coeff[19] * data[i-20];
-				case 19: sum += qlp_coeff[18] * data[i-19];
-				case 18: sum += qlp_coeff[17] * data[i-18];
-				case 17: sum += qlp_coeff[16] * data[i-17];
-				case 16: sum += qlp_coeff[15] * data[i-16];
-				case 15: sum += qlp_coeff[14] * data[i-15];
-				case 14: sum += qlp_coeff[13] * data[i-14];
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * data[i-13];
 				         sum += qlp_coeff[11] * data[i-12];
 				         sum += qlp_coeff[10] * data[i-11];
diff --git a/src/libFLAC/lpc_intrin_sse41.c b/src/libFLAC/lpc_intrin_sse41.c
index d5929d54..afa0d162 100644
--- a/src/libFLAC/lpc_intrin_sse41.c
+++ b/src/libFLAC/lpc_intrin_sse41.c
@@ -550,25 +550,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FL
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32];
-				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31];
-				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30];
-				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29];
-				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28];
-				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27];
-				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26];
-				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25];
-				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24];
-				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23];
-				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22];
-				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21];
-				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20];
-				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19];
-				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18];
-				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17];
-				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16];
-				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15];
-				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14];
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
 				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
 				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
@@ -1430,17 +1430,17 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__i
 		for(; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 12: sum += qlp_coeff[11] * data[i-12];
-				case 11: sum += qlp_coeff[10] * data[i-11];
-				case 10: sum += qlp_coeff[ 9] * data[i-10];
-				case 9:  sum += qlp_coeff[ 8] * data[i- 9];
-				case 8:  sum += qlp_coeff[ 7] * data[i- 8];
-				case 7:  sum += qlp_coeff[ 6] * data[i- 7];
-				case 6:  sum += qlp_coeff[ 5] * data[i- 6];
-				case 5:  sum += qlp_coeff[ 4] * data[i- 5];
-				case 4:  sum += qlp_coeff[ 3] * data[i- 4];
-				case 3:  sum += qlp_coeff[ 2] * data[i- 3];
-				case 2:  sum += qlp_coeff[ 1] * data[i- 2];
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
 				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
 			}
 			residual[i] = data[i] - (sum >> lp_quantization);
@@ -1450,25 +1450,25 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__i
 		for(i = 0; i < (int)data_len; i++) {
 			sum = 0;
 			switch(order) {
-				case 32: sum += qlp_coeff[31] * data[i-32];
-				case 31: sum += qlp_coeff[30] * data[i-31];
-				case 30: sum += qlp_coeff[29] * data[i-30];
-				case 29: sum += qlp_coeff[28] * data[i-29];
-				case 28: sum += qlp_coeff[27] * data[i-28];
-				case 27: sum += qlp_coeff[26] * data[i-27];
-				case 26: sum += qlp_coeff[25] * data[i-26];
-				case 25: sum += qlp_coeff[24] * data[i-25];
-				case 24: sum += qlp_coeff[23] * data[i-24];
-				case 23: sum += qlp_coeff[22] * data[i-23];
-				case 22: sum += qlp_coeff[21] * data[i-22];
-				case 21: sum += qlp_coeff[20] * data[i-21];
-				case 20: sum += qlp_coeff[19] * data[i-20];
-				case 19: sum += qlp_coeff[18] * data[i-19];
-				case 18: sum += qlp_coeff[17] * data[i-18];
-				case 17: sum += qlp_coeff[16] * data[i-17];
-				case 16: sum += qlp_coeff[15] * data[i-16];
-				case 15: sum += qlp_coeff[14] * data[i-15];
-				case 14: sum += qlp_coeff[13] * data[i-14];
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
 				case 13: sum += qlp_coeff[12] * data[i-13];
 				         sum += qlp_coeff[11] * data[i-12];
 				         sum += qlp_coeff[10] * data[i-11];