ggml : fix quant dot product with odd number of blocks (#8549)

* ggml : fix iq4_nl dot product with odd number of blocks

* ggml : fix odd blocks for ARM_NEON (#8556)

* ggml : fix iq4_nl dot product with odd number of blocks

* ggml : fix q4_1

* ggml : fix q5_0

* ggml : fix q5_1

* ggml : fix iq4_nl metal

ggml-ci

* ggml : fix q4_0

* ggml : fix q8_0

ggml-ci

* ggml : remove special Q4_0 code for first 2 blocks

* ggml : fix sumf redefinition

---------

Co-authored-by: slaren <slarengh@gmail.com>

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

Author: slaren

ggml/src/ggml-metal.m

@@ -1786,10 +1786,6 @@ static enum ggml_status ggml_metal_graph_compute(
                                     }
                             };
 
-                            if (ggml_is_quantized(src0t)) {
-                                GGML_ASSERT(ne00 >= nth0*nth1);
-                            }
-
                             [encoder setComputePipelineState:pipeline];
                             [encoder setBuffer:id_src0 offset:offs_src0 atIndex:0];
                             [encoder setBuffer:id_src1 offset:offs_src1 atIndex:1];

ggml/src/ggml-metal.metal

@@ -4757,7 +4757,7 @@ void kernel_mul_mv_iq4_nl_f32_impl(
         device const float4 * y4 = (device const float4 *)yb;
         yl[0] = y4[0]; yl[1] = y4[4]; yl[2] = y4[1]; yl[3] = y4[5];
 
-        for (int row = 0; row < 2; ++row) {
+        for (int row = 0; row < 2 && first_row + row < ne01; ++row) {
 
             device const block_iq4_nl & xb = x[row*nb + ib];
             device const uint16_t * q4 = (device const uint16_t *)(xb.qs + 8*it);
@@ -4789,7 +4789,7 @@ void kernel_mul_mv_iq4_nl_f32_impl(
         yb += 16 * QK4_NL;
     }
 
-    for (int row = 0; row < 2; ++row) {
+    for (int row = 0; row < 2 && first_row + row < ne01; ++row) {
         all_sum = simd_sum(sumf[row]);
         if (tiisg == 0) {
             dst[r1*ne0 + im*ne0*ne1 + first_row + row] = all_sum;