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#version 450
#include "types.comp"
#include "generic_unary_head.comp"
#include "dequant_funcs.comp"
#if defined(DATA_A_IQ4_NL)
// 16 invocations needed for init_iq4nl_shmem
layout(local_size_x = 16, local_size_y = 1, local_size_z = 1) in;
#else
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
#endif
void main() {
#if defined(DATA_A_IQ2_XXS) || defined(DATA_A_IQ2_XS) || defined(DATA_A_IQ2_S) || defined(DATA_A_IQ3_XXS) || defined(DATA_A_IQ3_S) || defined(DATA_A_IQ4_NL)
init_iq_shmem(gl_WorkGroupSize);
if (gl_LocalInvocationIndex.x != 0) {
return;
}
#endif
const uint idx = gl_WorkGroupID.z * 262144 + gl_WorkGroupID.y * 512 + gl_WorkGroupID.x * QUANT_K;
if (idx >= p.ne) {
return;
}
uint dst_idx = get_doffset() + dst_idx(idx);
uint src_idx = src0_idx_quant(idx, QUANT_K);
const uint a_offset = 0;
const uint ib = src_idx;
const vec2 dm = get_dm(ib, a_offset);
[[unroll]] for (int j = 0; j < QUANT_K; j += 4) {
vec4 v = dequantize4(ib, j / QUANT_R, a_offset);
v = v * dm.x + vec4(dm.y);
#if QUANT_R == 2
data_d[dst_idx + j/2 + 0] = v[0];
data_d[dst_idx + j/2 + QUANT_K/2 + 0] = v[1];
data_d[dst_idx + j/2 + 1] = v[2];
data_d[dst_idx + j/2 + QUANT_K/2 + 1] = v[3];
#else
data_d[dst_idx + j + 0] = v[0];
data_d[dst_idx + j + 1] = v[1];
data_d[dst_idx + j + 2] = v[2];
data_d[dst_idx + j + 3] = v[3];
#endif
}
}
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