inv_txfm.c: remove dead functions

Change-Id: I953cb2834cf95abaceec259276784e8771b662cb
diff --git a/aom_dsp/inv_txfm.c b/aom_dsp/inv_txfm.c
index 546b1c1..83ee8c6 100644
--- a/aom_dsp/inv_txfm.c
+++ b/aom_dsp/inv_txfm.c
@@ -156,60 +156,6 @@
   }
 }
 
-void aom_idct8_c(const tran_low_t *input, tran_low_t *output) {
-  tran_low_t step1[8], step2[8];
-  tran_high_t temp1, temp2;
-  // stage 1
-  step1[0] = input[0];
-  step1[2] = input[4];
-  step1[1] = input[2];
-  step1[3] = input[6];
-  temp1 = input[1] * cospi_28_64 - input[7] * cospi_4_64;
-  temp2 = input[1] * cospi_4_64 + input[7] * cospi_28_64;
-  step1[4] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[7] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = input[5] * cospi_12_64 - input[3] * cospi_20_64;
-  temp2 = input[5] * cospi_20_64 + input[3] * cospi_12_64;
-  step1[5] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[6] = WRAPLOW(dct_const_round_shift(temp2));
-
-  // stage 2
-  temp1 = (step1[0] + step1[2]) * cospi_16_64;
-  temp2 = (step1[0] - step1[2]) * cospi_16_64;
-  step2[0] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[1] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = step1[1] * cospi_24_64 - step1[3] * cospi_8_64;
-  temp2 = step1[1] * cospi_8_64 + step1[3] * cospi_24_64;
-  step2[2] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[3] = WRAPLOW(dct_const_round_shift(temp2));
-  step2[4] = WRAPLOW(step1[4] + step1[5]);
-  step2[5] = WRAPLOW(step1[4] - step1[5]);
-  step2[6] = WRAPLOW(-step1[6] + step1[7]);
-  step2[7] = WRAPLOW(step1[6] + step1[7]);
-
-  // stage 3
-  step1[0] = WRAPLOW(step2[0] + step2[3]);
-  step1[1] = WRAPLOW(step2[1] + step2[2]);
-  step1[2] = WRAPLOW(step2[1] - step2[2]);
-  step1[3] = WRAPLOW(step2[0] - step2[3]);
-  step1[4] = step2[4];
-  temp1 = (step2[6] - step2[5]) * cospi_16_64;
-  temp2 = (step2[5] + step2[6]) * cospi_16_64;
-  step1[5] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[6] = WRAPLOW(dct_const_round_shift(temp2));
-  step1[7] = step2[7];
-
-  // stage 4
-  output[0] = WRAPLOW(step1[0] + step1[7]);
-  output[1] = WRAPLOW(step1[1] + step1[6]);
-  output[2] = WRAPLOW(step1[2] + step1[5]);
-  output[3] = WRAPLOW(step1[3] + step1[4]);
-  output[4] = WRAPLOW(step1[3] - step1[4]);
-  output[5] = WRAPLOW(step1[2] - step1[5]);
-  output[6] = WRAPLOW(step1[1] - step1[6]);
-  output[7] = WRAPLOW(step1[0] - step1[7]);
-}
-
 void aom_iadst4_c(const tran_low_t *input, tran_low_t *output) {
   tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
 
@@ -247,785 +193,6 @@
   output[3] = WRAPLOW(dct_const_round_shift(s0 + s1 - s3));
 }
 
-void aom_iadst8_c(const tran_low_t *input, tran_low_t *output) {
-  int s0, s1, s2, s3, s4, s5, s6, s7;
-
-  tran_high_t x0 = input[7];
-  tran_high_t x1 = input[0];
-  tran_high_t x2 = input[5];
-  tran_high_t x3 = input[2];
-  tran_high_t x4 = input[3];
-  tran_high_t x5 = input[4];
-  tran_high_t x6 = input[1];
-  tran_high_t x7 = input[6];
-
-  if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) {
-    output[0] = output[1] = output[2] = output[3] = output[4] = output[5] =
-        output[6] = output[7] = 0;
-    return;
-  }
-
-  // stage 1
-  s0 = (int)(cospi_2_64 * x0 + cospi_30_64 * x1);
-  s1 = (int)(cospi_30_64 * x0 - cospi_2_64 * x1);
-  s2 = (int)(cospi_10_64 * x2 + cospi_22_64 * x3);
-  s3 = (int)(cospi_22_64 * x2 - cospi_10_64 * x3);
-  s4 = (int)(cospi_18_64 * x4 + cospi_14_64 * x5);
-  s5 = (int)(cospi_14_64 * x4 - cospi_18_64 * x5);
-  s6 = (int)(cospi_26_64 * x6 + cospi_6_64 * x7);
-  s7 = (int)(cospi_6_64 * x6 - cospi_26_64 * x7);
-
-  x0 = WRAPLOW(dct_const_round_shift(s0 + s4));
-  x1 = WRAPLOW(dct_const_round_shift(s1 + s5));
-  x2 = WRAPLOW(dct_const_round_shift(s2 + s6));
-  x3 = WRAPLOW(dct_const_round_shift(s3 + s7));
-  x4 = WRAPLOW(dct_const_round_shift(s0 - s4));
-  x5 = WRAPLOW(dct_const_round_shift(s1 - s5));
-  x6 = WRAPLOW(dct_const_round_shift(s2 - s6));
-  x7 = WRAPLOW(dct_const_round_shift(s3 - s7));
-
-  // stage 2
-  s0 = (int)x0;
-  s1 = (int)x1;
-  s2 = (int)x2;
-  s3 = (int)x3;
-  s4 = (int)(cospi_8_64 * x4 + cospi_24_64 * x5);
-  s5 = (int)(cospi_24_64 * x4 - cospi_8_64 * x5);
-  s6 = (int)(-cospi_24_64 * x6 + cospi_8_64 * x7);
-  s7 = (int)(cospi_8_64 * x6 + cospi_24_64 * x7);
-
-  x0 = WRAPLOW(s0 + s2);
-  x1 = WRAPLOW(s1 + s3);
-  x2 = WRAPLOW(s0 - s2);
-  x3 = WRAPLOW(s1 - s3);
-  x4 = WRAPLOW(dct_const_round_shift(s4 + s6));
-  x5 = WRAPLOW(dct_const_round_shift(s5 + s7));
-  x6 = WRAPLOW(dct_const_round_shift(s4 - s6));
-  x7 = WRAPLOW(dct_const_round_shift(s5 - s7));
-
-  // stage 3
-  s2 = (int)(cospi_16_64 * (x2 + x3));
-  s3 = (int)(cospi_16_64 * (x2 - x3));
-  s6 = (int)(cospi_16_64 * (x6 + x7));
-  s7 = (int)(cospi_16_64 * (x6 - x7));
-
-  x2 = WRAPLOW(dct_const_round_shift(s2));
-  x3 = WRAPLOW(dct_const_round_shift(s3));
-  x6 = WRAPLOW(dct_const_round_shift(s6));
-  x7 = WRAPLOW(dct_const_round_shift(s7));
-
-  output[0] = WRAPLOW(x0);
-  output[1] = WRAPLOW(-x4);
-  output[2] = WRAPLOW(x6);
-  output[3] = WRAPLOW(-x2);
-  output[4] = WRAPLOW(x3);
-  output[5] = WRAPLOW(-x7);
-  output[6] = WRAPLOW(x5);
-  output[7] = WRAPLOW(-x1);
-}
-
-void aom_idct16_c(const tran_low_t *input, tran_low_t *output) {
-  tran_low_t step1[16], step2[16];
-  tran_high_t temp1, temp2;
-
-  // stage 1
-  step1[0] = input[0 / 2];
-  step1[1] = input[16 / 2];
-  step1[2] = input[8 / 2];
-  step1[3] = input[24 / 2];
-  step1[4] = input[4 / 2];
-  step1[5] = input[20 / 2];
-  step1[6] = input[12 / 2];
-  step1[7] = input[28 / 2];
-  step1[8] = input[2 / 2];
-  step1[9] = input[18 / 2];
-  step1[10] = input[10 / 2];
-  step1[11] = input[26 / 2];
-  step1[12] = input[6 / 2];
-  step1[13] = input[22 / 2];
-  step1[14] = input[14 / 2];
-  step1[15] = input[30 / 2];
-
-  // stage 2
-  step2[0] = step1[0];
-  step2[1] = step1[1];
-  step2[2] = step1[2];
-  step2[3] = step1[3];
-  step2[4] = step1[4];
-  step2[5] = step1[5];
-  step2[6] = step1[6];
-  step2[7] = step1[7];
-
-  temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
-  temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
-  step2[8] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[15] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
-  temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
-  step2[9] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[14] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
-  temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
-  step2[10] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[13] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
-  temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
-  step2[11] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[12] = WRAPLOW(dct_const_round_shift(temp2));
-
-  // stage 3
-  step1[0] = step2[0];
-  step1[1] = step2[1];
-  step1[2] = step2[2];
-  step1[3] = step2[3];
-
-  temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
-  temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
-  step1[4] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[7] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
-  temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
-  step1[5] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[6] = WRAPLOW(dct_const_round_shift(temp2));
-
-  step1[8] = WRAPLOW(step2[8] + step2[9]);
-  step1[9] = WRAPLOW(step2[8] - step2[9]);
-  step1[10] = WRAPLOW(-step2[10] + step2[11]);
-  step1[11] = WRAPLOW(step2[10] + step2[11]);
-  step1[12] = WRAPLOW(step2[12] + step2[13]);
-  step1[13] = WRAPLOW(step2[12] - step2[13]);
-  step1[14] = WRAPLOW(-step2[14] + step2[15]);
-  step1[15] = WRAPLOW(step2[14] + step2[15]);
-
-  // stage 4
-  temp1 = (step1[0] + step1[1]) * cospi_16_64;
-  temp2 = (step1[0] - step1[1]) * cospi_16_64;
-  step2[0] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[1] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
-  temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
-  step2[2] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[3] = WRAPLOW(dct_const_round_shift(temp2));
-  step2[4] = WRAPLOW(step1[4] + step1[5]);
-  step2[5] = WRAPLOW(step1[4] - step1[5]);
-  step2[6] = WRAPLOW(-step1[6] + step1[7]);
-  step2[7] = WRAPLOW(step1[6] + step1[7]);
-
-  step2[8] = step1[8];
-  step2[15] = step1[15];
-  temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
-  temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
-  step2[9] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[14] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
-  temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
-  step2[10] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[13] = WRAPLOW(dct_const_round_shift(temp2));
-  step2[11] = step1[11];
-  step2[12] = step1[12];
-
-  // stage 5
-  step1[0] = WRAPLOW(step2[0] + step2[3]);
-  step1[1] = WRAPLOW(step2[1] + step2[2]);
-  step1[2] = WRAPLOW(step2[1] - step2[2]);
-  step1[3] = WRAPLOW(step2[0] - step2[3]);
-  step1[4] = step2[4];
-  temp1 = (step2[6] - step2[5]) * cospi_16_64;
-  temp2 = (step2[5] + step2[6]) * cospi_16_64;
-  step1[5] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[6] = WRAPLOW(dct_const_round_shift(temp2));
-  step1[7] = step2[7];
-
-  step1[8] = WRAPLOW(step2[8] + step2[11]);
-  step1[9] = WRAPLOW(step2[9] + step2[10]);
-  step1[10] = WRAPLOW(step2[9] - step2[10]);
-  step1[11] = WRAPLOW(step2[8] - step2[11]);
-  step1[12] = WRAPLOW(-step2[12] + step2[15]);
-  step1[13] = WRAPLOW(-step2[13] + step2[14]);
-  step1[14] = WRAPLOW(step2[13] + step2[14]);
-  step1[15] = WRAPLOW(step2[12] + step2[15]);
-
-  // stage 6
-  step2[0] = WRAPLOW(step1[0] + step1[7]);
-  step2[1] = WRAPLOW(step1[1] + step1[6]);
-  step2[2] = WRAPLOW(step1[2] + step1[5]);
-  step2[3] = WRAPLOW(step1[3] + step1[4]);
-  step2[4] = WRAPLOW(step1[3] - step1[4]);
-  step2[5] = WRAPLOW(step1[2] - step1[5]);
-  step2[6] = WRAPLOW(step1[1] - step1[6]);
-  step2[7] = WRAPLOW(step1[0] - step1[7]);
-  step2[8] = step1[8];
-  step2[9] = step1[9];
-  temp1 = (-step1[10] + step1[13]) * cospi_16_64;
-  temp2 = (step1[10] + step1[13]) * cospi_16_64;
-  step2[10] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[13] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = (-step1[11] + step1[12]) * cospi_16_64;
-  temp2 = (step1[11] + step1[12]) * cospi_16_64;
-  step2[11] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[12] = WRAPLOW(dct_const_round_shift(temp2));
-  step2[14] = step1[14];
-  step2[15] = step1[15];
-
-  // stage 7
-  output[0] = WRAPLOW(step2[0] + step2[15]);
-  output[1] = WRAPLOW(step2[1] + step2[14]);
-  output[2] = WRAPLOW(step2[2] + step2[13]);
-  output[3] = WRAPLOW(step2[3] + step2[12]);
-  output[4] = WRAPLOW(step2[4] + step2[11]);
-  output[5] = WRAPLOW(step2[5] + step2[10]);
-  output[6] = WRAPLOW(step2[6] + step2[9]);
-  output[7] = WRAPLOW(step2[7] + step2[8]);
-  output[8] = WRAPLOW(step2[7] - step2[8]);
-  output[9] = WRAPLOW(step2[6] - step2[9]);
-  output[10] = WRAPLOW(step2[5] - step2[10]);
-  output[11] = WRAPLOW(step2[4] - step2[11]);
-  output[12] = WRAPLOW(step2[3] - step2[12]);
-  output[13] = WRAPLOW(step2[2] - step2[13]);
-  output[14] = WRAPLOW(step2[1] - step2[14]);
-  output[15] = WRAPLOW(step2[0] - step2[15]);
-}
-
-void aom_iadst16_c(const tran_low_t *input, tran_low_t *output) {
-  tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8;
-  tran_high_t s9, s10, s11, s12, s13, s14, s15;
-
-  tran_high_t x0 = input[15];
-  tran_high_t x1 = input[0];
-  tran_high_t x2 = input[13];
-  tran_high_t x3 = input[2];
-  tran_high_t x4 = input[11];
-  tran_high_t x5 = input[4];
-  tran_high_t x6 = input[9];
-  tran_high_t x7 = input[6];
-  tran_high_t x8 = input[7];
-  tran_high_t x9 = input[8];
-  tran_high_t x10 = input[5];
-  tran_high_t x11 = input[10];
-  tran_high_t x12 = input[3];
-  tran_high_t x13 = input[12];
-  tran_high_t x14 = input[1];
-  tran_high_t x15 = input[14];
-
-  if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8 | x9 | x10 | x11 | x12 |
-        x13 | x14 | x15)) {
-    output[0] = output[1] = output[2] = output[3] = output[4] = output[5] =
-        output[6] = output[7] = output[8] = output[9] = output[10] =
-            output[11] = output[12] = output[13] = output[14] = output[15] = 0;
-    return;
-  }
-
-  // stage 1
-  s0 = x0 * cospi_1_64 + x1 * cospi_31_64;
-  s1 = x0 * cospi_31_64 - x1 * cospi_1_64;
-  s2 = x2 * cospi_5_64 + x3 * cospi_27_64;
-  s3 = x2 * cospi_27_64 - x3 * cospi_5_64;
-  s4 = x4 * cospi_9_64 + x5 * cospi_23_64;
-  s5 = x4 * cospi_23_64 - x5 * cospi_9_64;
-  s6 = x6 * cospi_13_64 + x7 * cospi_19_64;
-  s7 = x6 * cospi_19_64 - x7 * cospi_13_64;
-  s8 = x8 * cospi_17_64 + x9 * cospi_15_64;
-  s9 = x8 * cospi_15_64 - x9 * cospi_17_64;
-  s10 = x10 * cospi_21_64 + x11 * cospi_11_64;
-  s11 = x10 * cospi_11_64 - x11 * cospi_21_64;
-  s12 = x12 * cospi_25_64 + x13 * cospi_7_64;
-  s13 = x12 * cospi_7_64 - x13 * cospi_25_64;
-  s14 = x14 * cospi_29_64 + x15 * cospi_3_64;
-  s15 = x14 * cospi_3_64 - x15 * cospi_29_64;
-
-  x0 = WRAPLOW(dct_const_round_shift(s0 + s8));
-  x1 = WRAPLOW(dct_const_round_shift(s1 + s9));
-  x2 = WRAPLOW(dct_const_round_shift(s2 + s10));
-  x3 = WRAPLOW(dct_const_round_shift(s3 + s11));
-  x4 = WRAPLOW(dct_const_round_shift(s4 + s12));
-  x5 = WRAPLOW(dct_const_round_shift(s5 + s13));
-  x6 = WRAPLOW(dct_const_round_shift(s6 + s14));
-  x7 = WRAPLOW(dct_const_round_shift(s7 + s15));
-  x8 = WRAPLOW(dct_const_round_shift(s0 - s8));
-  x9 = WRAPLOW(dct_const_round_shift(s1 - s9));
-  x10 = WRAPLOW(dct_const_round_shift(s2 - s10));
-  x11 = WRAPLOW(dct_const_round_shift(s3 - s11));
-  x12 = WRAPLOW(dct_const_round_shift(s4 - s12));
-  x13 = WRAPLOW(dct_const_round_shift(s5 - s13));
-  x14 = WRAPLOW(dct_const_round_shift(s6 - s14));
-  x15 = WRAPLOW(dct_const_round_shift(s7 - s15));
-
-  // stage 2
-  s0 = x0;
-  s1 = x1;
-  s2 = x2;
-  s3 = x3;
-  s4 = x4;
-  s5 = x5;
-  s6 = x6;
-  s7 = x7;
-  s8 = x8 * cospi_4_64 + x9 * cospi_28_64;
-  s9 = x8 * cospi_28_64 - x9 * cospi_4_64;
-  s10 = x10 * cospi_20_64 + x11 * cospi_12_64;
-  s11 = x10 * cospi_12_64 - x11 * cospi_20_64;
-  s12 = -x12 * cospi_28_64 + x13 * cospi_4_64;
-  s13 = x12 * cospi_4_64 + x13 * cospi_28_64;
-  s14 = -x14 * cospi_12_64 + x15 * cospi_20_64;
-  s15 = x14 * cospi_20_64 + x15 * cospi_12_64;
-
-  x0 = WRAPLOW(s0 + s4);
-  x1 = WRAPLOW(s1 + s5);
-  x2 = WRAPLOW(s2 + s6);
-  x3 = WRAPLOW(s3 + s7);
-  x4 = WRAPLOW(s0 - s4);
-  x5 = WRAPLOW(s1 - s5);
-  x6 = WRAPLOW(s2 - s6);
-  x7 = WRAPLOW(s3 - s7);
-  x8 = WRAPLOW(dct_const_round_shift(s8 + s12));
-  x9 = WRAPLOW(dct_const_round_shift(s9 + s13));
-  x10 = WRAPLOW(dct_const_round_shift(s10 + s14));
-  x11 = WRAPLOW(dct_const_round_shift(s11 + s15));
-  x12 = WRAPLOW(dct_const_round_shift(s8 - s12));
-  x13 = WRAPLOW(dct_const_round_shift(s9 - s13));
-  x14 = WRAPLOW(dct_const_round_shift(s10 - s14));
-  x15 = WRAPLOW(dct_const_round_shift(s11 - s15));
-
-  // stage 3
-  s0 = x0;
-  s1 = x1;
-  s2 = x2;
-  s3 = x3;
-  s4 = x4 * cospi_8_64 + x5 * cospi_24_64;
-  s5 = x4 * cospi_24_64 - x5 * cospi_8_64;
-  s6 = -x6 * cospi_24_64 + x7 * cospi_8_64;
-  s7 = x6 * cospi_8_64 + x7 * cospi_24_64;
-  s8 = x8;
-  s9 = x9;
-  s10 = x10;
-  s11 = x11;
-  s12 = x12 * cospi_8_64 + x13 * cospi_24_64;
-  s13 = x12 * cospi_24_64 - x13 * cospi_8_64;
-  s14 = -x14 * cospi_24_64 + x15 * cospi_8_64;
-  s15 = x14 * cospi_8_64 + x15 * cospi_24_64;
-
-  x0 = WRAPLOW(s0 + s2);
-  x1 = WRAPLOW(s1 + s3);
-  x2 = WRAPLOW(s0 - s2);
-  x3 = WRAPLOW(s1 - s3);
-  x4 = WRAPLOW(dct_const_round_shift(s4 + s6));
-  x5 = WRAPLOW(dct_const_round_shift(s5 + s7));
-  x6 = WRAPLOW(dct_const_round_shift(s4 - s6));
-  x7 = WRAPLOW(dct_const_round_shift(s5 - s7));
-  x8 = WRAPLOW(s8 + s10);
-  x9 = WRAPLOW(s9 + s11);
-  x10 = WRAPLOW(s8 - s10);
-  x11 = WRAPLOW(s9 - s11);
-  x12 = WRAPLOW(dct_const_round_shift(s12 + s14));
-  x13 = WRAPLOW(dct_const_round_shift(s13 + s15));
-  x14 = WRAPLOW(dct_const_round_shift(s12 - s14));
-  x15 = WRAPLOW(dct_const_round_shift(s13 - s15));
-
-  // stage 4
-  s2 = (-cospi_16_64) * (x2 + x3);
-  s3 = cospi_16_64 * (x2 - x3);
-  s6 = cospi_16_64 * (x6 + x7);
-  s7 = cospi_16_64 * (-x6 + x7);
-  s10 = cospi_16_64 * (x10 + x11);
-  s11 = cospi_16_64 * (-x10 + x11);
-  s14 = (-cospi_16_64) * (x14 + x15);
-  s15 = cospi_16_64 * (x14 - x15);
-
-  x2 = WRAPLOW(dct_const_round_shift(s2));
-  x3 = WRAPLOW(dct_const_round_shift(s3));
-  x6 = WRAPLOW(dct_const_round_shift(s6));
-  x7 = WRAPLOW(dct_const_round_shift(s7));
-  x10 = WRAPLOW(dct_const_round_shift(s10));
-  x11 = WRAPLOW(dct_const_round_shift(s11));
-  x14 = WRAPLOW(dct_const_round_shift(s14));
-  x15 = WRAPLOW(dct_const_round_shift(s15));
-
-  output[0] = WRAPLOW(x0);
-  output[1] = WRAPLOW(-x8);
-  output[2] = WRAPLOW(x12);
-  output[3] = WRAPLOW(-x4);
-  output[4] = WRAPLOW(x6);
-  output[5] = WRAPLOW(x14);
-  output[6] = WRAPLOW(x10);
-  output[7] = WRAPLOW(x2);
-  output[8] = WRAPLOW(x3);
-  output[9] = WRAPLOW(x11);
-  output[10] = WRAPLOW(x15);
-  output[11] = WRAPLOW(x7);
-  output[12] = WRAPLOW(x5);
-  output[13] = WRAPLOW(-x13);
-  output[14] = WRAPLOW(x9);
-  output[15] = WRAPLOW(-x1);
-}
-
-void aom_idct32_c(const tran_low_t *input, tran_low_t *output) {
-  tran_low_t step1[32], step2[32];
-  tran_high_t temp1, temp2;
-
-  // stage 1
-  step1[0] = input[0];
-  step1[1] = input[16];
-  step1[2] = input[8];
-  step1[3] = input[24];
-  step1[4] = input[4];
-  step1[5] = input[20];
-  step1[6] = input[12];
-  step1[7] = input[28];
-  step1[8] = input[2];
-  step1[9] = input[18];
-  step1[10] = input[10];
-  step1[11] = input[26];
-  step1[12] = input[6];
-  step1[13] = input[22];
-  step1[14] = input[14];
-  step1[15] = input[30];
-
-  temp1 = input[1] * cospi_31_64 - input[31] * cospi_1_64;
-  temp2 = input[1] * cospi_1_64 + input[31] * cospi_31_64;
-  step1[16] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[31] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = input[17] * cospi_15_64 - input[15] * cospi_17_64;
-  temp2 = input[17] * cospi_17_64 + input[15] * cospi_15_64;
-  step1[17] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[30] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = input[9] * cospi_23_64 - input[23] * cospi_9_64;
-  temp2 = input[9] * cospi_9_64 + input[23] * cospi_23_64;
-  step1[18] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[29] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = input[25] * cospi_7_64 - input[7] * cospi_25_64;
-  temp2 = input[25] * cospi_25_64 + input[7] * cospi_7_64;
-  step1[19] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[28] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = input[5] * cospi_27_64 - input[27] * cospi_5_64;
-  temp2 = input[5] * cospi_5_64 + input[27] * cospi_27_64;
-  step1[20] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[27] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = input[21] * cospi_11_64 - input[11] * cospi_21_64;
-  temp2 = input[21] * cospi_21_64 + input[11] * cospi_11_64;
-  step1[21] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[26] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = input[13] * cospi_19_64 - input[19] * cospi_13_64;
-  temp2 = input[13] * cospi_13_64 + input[19] * cospi_19_64;
-  step1[22] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[25] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = input[29] * cospi_3_64 - input[3] * cospi_29_64;
-  temp2 = input[29] * cospi_29_64 + input[3] * cospi_3_64;
-  step1[23] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[24] = WRAPLOW(dct_const_round_shift(temp2));
-
-  // stage 2
-  step2[0] = step1[0];
-  step2[1] = step1[1];
-  step2[2] = step1[2];
-  step2[3] = step1[3];
-  step2[4] = step1[4];
-  step2[5] = step1[5];
-  step2[6] = step1[6];
-  step2[7] = step1[7];
-
-  temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
-  temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
-  step2[8] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[15] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
-  temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
-  step2[9] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[14] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
-  temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
-  step2[10] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[13] = WRAPLOW(dct_const_round_shift(temp2));
-
-  temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
-  temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
-  step2[11] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[12] = WRAPLOW(dct_const_round_shift(temp2));
-
-  step2[16] = WRAPLOW(step1[16] + step1[17]);
-  step2[17] = WRAPLOW(step1[16] - step1[17]);
-  step2[18] = WRAPLOW(-step1[18] + step1[19]);
-  step2[19] = WRAPLOW(step1[18] + step1[19]);
-  step2[20] = WRAPLOW(step1[20] + step1[21]);
-  step2[21] = WRAPLOW(step1[20] - step1[21]);
-  step2[22] = WRAPLOW(-step1[22] + step1[23]);
-  step2[23] = WRAPLOW(step1[22] + step1[23]);
-  step2[24] = WRAPLOW(step1[24] + step1[25]);
-  step2[25] = WRAPLOW(step1[24] - step1[25]);
-  step2[26] = WRAPLOW(-step1[26] + step1[27]);
-  step2[27] = WRAPLOW(step1[26] + step1[27]);
-  step2[28] = WRAPLOW(step1[28] + step1[29]);
-  step2[29] = WRAPLOW(step1[28] - step1[29]);
-  step2[30] = WRAPLOW(-step1[30] + step1[31]);
-  step2[31] = WRAPLOW(step1[30] + step1[31]);
-
-  // stage 3
-  step1[0] = step2[0];
-  step1[1] = step2[1];
-  step1[2] = step2[2];
-  step1[3] = step2[3];
-
-  temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
-  temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
-  step1[4] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[7] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
-  temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
-  step1[5] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[6] = WRAPLOW(dct_const_round_shift(temp2));
-
-  step1[8] = WRAPLOW(step2[8] + step2[9]);
-  step1[9] = WRAPLOW(step2[8] - step2[9]);
-  step1[10] = WRAPLOW(-step2[10] + step2[11]);
-  step1[11] = WRAPLOW(step2[10] + step2[11]);
-  step1[12] = WRAPLOW(step2[12] + step2[13]);
-  step1[13] = WRAPLOW(step2[12] - step2[13]);
-  step1[14] = WRAPLOW(-step2[14] + step2[15]);
-  step1[15] = WRAPLOW(step2[14] + step2[15]);
-
-  step1[16] = step2[16];
-  step1[31] = step2[31];
-  temp1 = -step2[17] * cospi_4_64 + step2[30] * cospi_28_64;
-  temp2 = step2[17] * cospi_28_64 + step2[30] * cospi_4_64;
-  step1[17] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[30] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = -step2[18] * cospi_28_64 - step2[29] * cospi_4_64;
-  temp2 = -step2[18] * cospi_4_64 + step2[29] * cospi_28_64;
-  step1[18] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[29] = WRAPLOW(dct_const_round_shift(temp2));
-  step1[19] = step2[19];
-  step1[20] = step2[20];
-  temp1 = -step2[21] * cospi_20_64 + step2[26] * cospi_12_64;
-  temp2 = step2[21] * cospi_12_64 + step2[26] * cospi_20_64;
-  step1[21] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[26] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = -step2[22] * cospi_12_64 - step2[25] * cospi_20_64;
-  temp2 = -step2[22] * cospi_20_64 + step2[25] * cospi_12_64;
-  step1[22] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[25] = WRAPLOW(dct_const_round_shift(temp2));
-  step1[23] = step2[23];
-  step1[24] = step2[24];
-  step1[27] = step2[27];
-  step1[28] = step2[28];
-
-  // stage 4
-  temp1 = (step1[0] + step1[1]) * cospi_16_64;
-  temp2 = (step1[0] - step1[1]) * cospi_16_64;
-  step2[0] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[1] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
-  temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
-  step2[2] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[3] = WRAPLOW(dct_const_round_shift(temp2));
-  step2[4] = WRAPLOW(step1[4] + step1[5]);
-  step2[5] = WRAPLOW(step1[4] - step1[5]);
-  step2[6] = WRAPLOW(-step1[6] + step1[7]);
-  step2[7] = WRAPLOW(step1[6] + step1[7]);
-
-  step2[8] = step1[8];
-  step2[15] = step1[15];
-  temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
-  temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
-  step2[9] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[14] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
-  temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
-  step2[10] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[13] = WRAPLOW(dct_const_round_shift(temp2));
-  step2[11] = step1[11];
-  step2[12] = step1[12];
-
-  step2[16] = WRAPLOW(step1[16] + step1[19]);
-  step2[17] = WRAPLOW(step1[17] + step1[18]);
-  step2[18] = WRAPLOW(step1[17] - step1[18]);
-  step2[19] = WRAPLOW(step1[16] - step1[19]);
-  step2[20] = WRAPLOW(-step1[20] + step1[23]);
-  step2[21] = WRAPLOW(-step1[21] + step1[22]);
-  step2[22] = WRAPLOW(step1[21] + step1[22]);
-  step2[23] = WRAPLOW(step1[20] + step1[23]);
-
-  step2[24] = WRAPLOW(step1[24] + step1[27]);
-  step2[25] = WRAPLOW(step1[25] + step1[26]);
-  step2[26] = WRAPLOW(step1[25] - step1[26]);
-  step2[27] = WRAPLOW(step1[24] - step1[27]);
-  step2[28] = WRAPLOW(-step1[28] + step1[31]);
-  step2[29] = WRAPLOW(-step1[29] + step1[30]);
-  step2[30] = WRAPLOW(step1[29] + step1[30]);
-  step2[31] = WRAPLOW(step1[28] + step1[31]);
-
-  // stage 5
-  step1[0] = WRAPLOW(step2[0] + step2[3]);
-  step1[1] = WRAPLOW(step2[1] + step2[2]);
-  step1[2] = WRAPLOW(step2[1] - step2[2]);
-  step1[3] = WRAPLOW(step2[0] - step2[3]);
-  step1[4] = step2[4];
-  temp1 = (step2[6] - step2[5]) * cospi_16_64;
-  temp2 = (step2[5] + step2[6]) * cospi_16_64;
-  step1[5] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[6] = WRAPLOW(dct_const_round_shift(temp2));
-  step1[7] = step2[7];
-
-  step1[8] = WRAPLOW(step2[8] + step2[11]);
-  step1[9] = WRAPLOW(step2[9] + step2[10]);
-  step1[10] = WRAPLOW(step2[9] - step2[10]);
-  step1[11] = WRAPLOW(step2[8] - step2[11]);
-  step1[12] = WRAPLOW(-step2[12] + step2[15]);
-  step1[13] = WRAPLOW(-step2[13] + step2[14]);
-  step1[14] = WRAPLOW(step2[13] + step2[14]);
-  step1[15] = WRAPLOW(step2[12] + step2[15]);
-
-  step1[16] = step2[16];
-  step1[17] = step2[17];
-  temp1 = -step2[18] * cospi_8_64 + step2[29] * cospi_24_64;
-  temp2 = step2[18] * cospi_24_64 + step2[29] * cospi_8_64;
-  step1[18] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[29] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = -step2[19] * cospi_8_64 + step2[28] * cospi_24_64;
-  temp2 = step2[19] * cospi_24_64 + step2[28] * cospi_8_64;
-  step1[19] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[28] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = -step2[20] * cospi_24_64 - step2[27] * cospi_8_64;
-  temp2 = -step2[20] * cospi_8_64 + step2[27] * cospi_24_64;
-  step1[20] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[27] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = -step2[21] * cospi_24_64 - step2[26] * cospi_8_64;
-  temp2 = -step2[21] * cospi_8_64 + step2[26] * cospi_24_64;
-  step1[21] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[26] = WRAPLOW(dct_const_round_shift(temp2));
-  step1[22] = step2[22];
-  step1[23] = step2[23];
-  step1[24] = step2[24];
-  step1[25] = step2[25];
-  step1[30] = step2[30];
-  step1[31] = step2[31];
-
-  // stage 6
-  step2[0] = WRAPLOW(step1[0] + step1[7]);
-  step2[1] = WRAPLOW(step1[1] + step1[6]);
-  step2[2] = WRAPLOW(step1[2] + step1[5]);
-  step2[3] = WRAPLOW(step1[3] + step1[4]);
-  step2[4] = WRAPLOW(step1[3] - step1[4]);
-  step2[5] = WRAPLOW(step1[2] - step1[5]);
-  step2[6] = WRAPLOW(step1[1] - step1[6]);
-  step2[7] = WRAPLOW(step1[0] - step1[7]);
-  step2[8] = step1[8];
-  step2[9] = step1[9];
-  temp1 = (-step1[10] + step1[13]) * cospi_16_64;
-  temp2 = (step1[10] + step1[13]) * cospi_16_64;
-  step2[10] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[13] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = (-step1[11] + step1[12]) * cospi_16_64;
-  temp2 = (step1[11] + step1[12]) * cospi_16_64;
-  step2[11] = WRAPLOW(dct_const_round_shift(temp1));
-  step2[12] = WRAPLOW(dct_const_round_shift(temp2));
-  step2[14] = step1[14];
-  step2[15] = step1[15];
-
-  step2[16] = WRAPLOW(step1[16] + step1[23]);
-  step2[17] = WRAPLOW(step1[17] + step1[22]);
-  step2[18] = WRAPLOW(step1[18] + step1[21]);
-  step2[19] = WRAPLOW(step1[19] + step1[20]);
-  step2[20] = WRAPLOW(step1[19] - step1[20]);
-  step2[21] = WRAPLOW(step1[18] - step1[21]);
-  step2[22] = WRAPLOW(step1[17] - step1[22]);
-  step2[23] = WRAPLOW(step1[16] - step1[23]);
-
-  step2[24] = WRAPLOW(-step1[24] + step1[31]);
-  step2[25] = WRAPLOW(-step1[25] + step1[30]);
-  step2[26] = WRAPLOW(-step1[26] + step1[29]);
-  step2[27] = WRAPLOW(-step1[27] + step1[28]);
-  step2[28] = WRAPLOW(step1[27] + step1[28]);
-  step2[29] = WRAPLOW(step1[26] + step1[29]);
-  step2[30] = WRAPLOW(step1[25] + step1[30]);
-  step2[31] = WRAPLOW(step1[24] + step1[31]);
-
-  // stage 7
-  step1[0] = WRAPLOW(step2[0] + step2[15]);
-  step1[1] = WRAPLOW(step2[1] + step2[14]);
-  step1[2] = WRAPLOW(step2[2] + step2[13]);
-  step1[3] = WRAPLOW(step2[3] + step2[12]);
-  step1[4] = WRAPLOW(step2[4] + step2[11]);
-  step1[5] = WRAPLOW(step2[5] + step2[10]);
-  step1[6] = WRAPLOW(step2[6] + step2[9]);
-  step1[7] = WRAPLOW(step2[7] + step2[8]);
-  step1[8] = WRAPLOW(step2[7] - step2[8]);
-  step1[9] = WRAPLOW(step2[6] - step2[9]);
-  step1[10] = WRAPLOW(step2[5] - step2[10]);
-  step1[11] = WRAPLOW(step2[4] - step2[11]);
-  step1[12] = WRAPLOW(step2[3] - step2[12]);
-  step1[13] = WRAPLOW(step2[2] - step2[13]);
-  step1[14] = WRAPLOW(step2[1] - step2[14]);
-  step1[15] = WRAPLOW(step2[0] - step2[15]);
-
-  step1[16] = step2[16];
-  step1[17] = step2[17];
-  step1[18] = step2[18];
-  step1[19] = step2[19];
-  temp1 = (-step2[20] + step2[27]) * cospi_16_64;
-  temp2 = (step2[20] + step2[27]) * cospi_16_64;
-  step1[20] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[27] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = (-step2[21] + step2[26]) * cospi_16_64;
-  temp2 = (step2[21] + step2[26]) * cospi_16_64;
-  step1[21] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[26] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = (-step2[22] + step2[25]) * cospi_16_64;
-  temp2 = (step2[22] + step2[25]) * cospi_16_64;
-  step1[22] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[25] = WRAPLOW(dct_const_round_shift(temp2));
-  temp1 = (-step2[23] + step2[24]) * cospi_16_64;
-  temp2 = (step2[23] + step2[24]) * cospi_16_64;
-  step1[23] = WRAPLOW(dct_const_round_shift(temp1));
-  step1[24] = WRAPLOW(dct_const_round_shift(temp2));
-  step1[28] = step2[28];
-  step1[29] = step2[29];
-  step1[30] = step2[30];
-  step1[31] = step2[31];
-
-  // final stage
-  output[0] = WRAPLOW(step1[0] + step1[31]);
-  output[1] = WRAPLOW(step1[1] + step1[30]);
-  output[2] = WRAPLOW(step1[2] + step1[29]);
-  output[3] = WRAPLOW(step1[3] + step1[28]);
-  output[4] = WRAPLOW(step1[4] + step1[27]);
-  output[5] = WRAPLOW(step1[5] + step1[26]);
-  output[6] = WRAPLOW(step1[6] + step1[25]);
-  output[7] = WRAPLOW(step1[7] + step1[24]);
-  output[8] = WRAPLOW(step1[8] + step1[23]);
-  output[9] = WRAPLOW(step1[9] + step1[22]);
-  output[10] = WRAPLOW(step1[10] + step1[21]);
-  output[11] = WRAPLOW(step1[11] + step1[20]);
-  output[12] = WRAPLOW(step1[12] + step1[19]);
-  output[13] = WRAPLOW(step1[13] + step1[18]);
-  output[14] = WRAPLOW(step1[14] + step1[17]);
-  output[15] = WRAPLOW(step1[15] + step1[16]);
-  output[16] = WRAPLOW(step1[15] - step1[16]);
-  output[17] = WRAPLOW(step1[14] - step1[17]);
-  output[18] = WRAPLOW(step1[13] - step1[18]);
-  output[19] = WRAPLOW(step1[12] - step1[19]);
-  output[20] = WRAPLOW(step1[11] - step1[20]);
-  output[21] = WRAPLOW(step1[10] - step1[21]);
-  output[22] = WRAPLOW(step1[9] - step1[22]);
-  output[23] = WRAPLOW(step1[8] - step1[23]);
-  output[24] = WRAPLOW(step1[7] - step1[24]);
-  output[25] = WRAPLOW(step1[6] - step1[25]);
-  output[26] = WRAPLOW(step1[5] - step1[26]);
-  output[27] = WRAPLOW(step1[4] - step1[27]);
-  output[28] = WRAPLOW(step1[3] - step1[28]);
-  output[29] = WRAPLOW(step1[2] - step1[29]);
-  output[30] = WRAPLOW(step1[1] - step1[30]);
-  output[31] = WRAPLOW(step1[0] - step1[31]);
-}
 void aom_highbd_iwht4x4_16_add_c(const tran_low_t *input, uint8_t *dest8,
                                  int stride, int bd) {
   /* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds,
diff --git a/aom_dsp/inv_txfm.h b/aom_dsp/inv_txfm.h
index 14cc989..733c590 100644
--- a/aom_dsp/inv_txfm.h
+++ b/aom_dsp/inv_txfm.h
@@ -46,21 +46,10 @@
 #define HIGHBD_WRAPLOW(x, bd) ((int32_t)check_range((x), bd))
 
 void aom_idct4_c(const tran_low_t *input, tran_low_t *output);
-void aom_idct8_c(const tran_low_t *input, tran_low_t *output);
-void aom_idct16_c(const tran_low_t *input, tran_low_t *output);
-void aom_idct32_c(const tran_low_t *input, tran_low_t *output);
 void aom_iadst4_c(const tran_low_t *input, tran_low_t *output);
-void aom_iadst8_c(const tran_low_t *input, tran_low_t *output);
-void aom_iadst16_c(const tran_low_t *input, tran_low_t *output);
 
 void aom_highbd_idct4_c(const tran_low_t *input, tran_low_t *output, int bd);
-void aom_highbd_idct8_c(const tran_low_t *input, tran_low_t *output, int bd);
-void aom_highbd_idct16_c(const tran_low_t *input, tran_low_t *output, int bd);
-void aom_highbd_idct32_c(const tran_low_t *input, tran_low_t *output, int bd);
-
 void aom_highbd_iadst4_c(const tran_low_t *input, tran_low_t *output, int bd);
-void aom_highbd_iadst8_c(const tran_low_t *input, tran_low_t *output, int bd);
-void aom_highbd_iadst16_c(const tran_low_t *input, tran_low_t *output, int bd);
 
 static INLINE uint16_t highbd_clip_pixel_add(uint16_t dest, tran_high_t trans,
                                              int bd) {
diff --git a/test/av1_inv_txfm_test.cc b/test/av1_inv_txfm_test.cc
index 5b5c38f..5f68df7 100644
--- a/test/av1_inv_txfm_test.cc
+++ b/test/av1_inv_txfm_test.cc
@@ -76,9 +76,6 @@
 TEST_P(AV1InvTxfm, RunInvAccuracyCheck) { RunInvAccuracyCheck(); }
 
 INSTANTIATE_TEST_CASE_P(C, AV1InvTxfm,
-                        ::testing::Values(IdctParam(&aom_idct4_c, 4, 1),
-                                          IdctParam(&aom_idct8_c, 8, 2),
-                                          IdctParam(&aom_idct16_c, 16, 4),
-                                          IdctParam(&aom_idct32_c, 32, 6)));
+                        ::testing::Values(IdctParam(&aom_idct4_c, 4, 1)));
 
 }  // namespace