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take fix from upstream stb to work around llvm bug (thanks Guillaume)

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Adam D. Ruppe 2021-10-04 19:50:55 -04:00
parent 0c2bcea779
commit 398f1a061e
1 changed files with 37 additions and 35 deletions
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72
vorbis.d
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@ -2067,45 +2067,47 @@ enum iter_54(string z) = q{{
${__temp_prefix__}z[-7] = ${__temp_prefix__}k11+${__temp_prefix__}k22; // z1-z5-z2+z6
}}.cmacroFixVars!"z"(z);
private void imdct_step3_inner_s_loop_ld654 (int n, float* e, int i_off, float* A, int base_n) {
int a_off = base_n>>3;
float A2 = A[0+a_off];
float* z = e+i_off;
float* base = z-16*n;
float k00, k11;
while (z > base) {
k00 = z[-0]-z[-8];
k11 = z[-1]-z[-9];
z[-0] = z[-0]+z[-8];
z[-1] = z[-1]+z[-9];
z[-8] = k00;
z[-9] = k11;
static void imdct_step3_inner_s_loop_ld654(int n, float *e, int i_off, float *A, int base_n)
{
int a_off = base_n >> 3;
float A2 = A[0+a_off];
float *z = e + i_off;
float *base = z - 16 * n;
k00 = z[ -2]-z[-10];
k11 = z[ -3]-z[-11];
z[ -2] = z[ -2]+z[-10];
z[ -3] = z[ -3]+z[-11];
z[-10] = (k00+k11)*A2;
z[-11] = (k11-k00)*A2;
while (z > base) {
float k00,k11;
float l00,l11;
k00 = z[-12]-z[ -4]; // reverse to avoid a unary negation
k11 = z[ -5]-z[-13];
z[ -4] = z[ -4]+z[-12];
z[ -5] = z[ -5]+z[-13];
z[-12] = k11;
z[-13] = k00;
k00 = z[-0] - z[ -8];
k11 = z[-1] - z[ -9];
l00 = z[-2] - z[-10];
l11 = z[-3] - z[-11];
z[ -0] = z[-0] + z[ -8];
z[ -1] = z[-1] + z[ -9];
z[ -2] = z[-2] + z[-10];
z[ -3] = z[-3] + z[-11];
z[ -8] = k00;
z[ -9] = k11;
z[-10] = (l00+l11) * A2;
z[-11] = (l11-l00) * A2;
k00 = z[-14]-z[ -6]; // reverse to avoid a unary negation
k11 = z[ -7]-z[-15];
z[ -6] = z[ -6]+z[-14];
z[ -7] = z[ -7]+z[-15];
z[-14] = (k00+k11)*A2;
z[-15] = (k00-k11)*A2;
k00 = z[ -4] - z[-12];
k11 = z[ -5] - z[-13];
l00 = z[ -6] - z[-14];
l11 = z[ -7] - z[-15];
z[ -4] = z[ -4] + z[-12];
z[ -5] = z[ -5] + z[-13];
z[ -6] = z[ -6] + z[-14];
z[ -7] = z[ -7] + z[-15];
z[-12] = k11;
z[-13] = -k00;
z[-14] = (l11-l00) * A2;
z[-15] = (l00+l11) * -A2;
mixin(iter_54!"z");
mixin(iter_54!"z-8");
z -= 16;
}
mixin(iter_54!"z");
mixin(iter_54!"z-8");
z -= 16;
}
}
private void inverse_mdct (float* buffer, int n, VorbisDecoder f, int blocktype) {