llama : fix input allocation logic

Author: ggerganov

Diff for: llama.cpp

@@ -4970,10 +4970,10 @@ static struct ggml_cgraph * llama_build_graph(
         // allocate input tensors and set input data
         //
 
-        if (batch.token && !alloc_inp_tokens && strcmp(name, "inp_tokens") == 0) {
+        if (!alloc_inp_tokens && strcmp(name, "inp_tokens") == 0) {
             ggml_allocr_alloc(lctx.alloc, cur);
 
-            if (!ggml_allocr_is_measure(lctx.alloc)) {
+            if (!ggml_allocr_is_measure(lctx.alloc) && batch.token) {
                 const int64_t n_tokens = cur->ne[0];
 
                 memcpy(cur->data, batch.token, n_tokens*ggml_element_size(cur));
@@ -4982,10 +4982,10 @@ static struct ggml_cgraph * llama_build_graph(
             alloc_inp_tokens = true;
         }
 
-        if (batch.embd && !alloc_inp_embd && strcmp(name, "inp_embd") == 0) {
+        if (!alloc_inp_embd && strcmp(name, "inp_embd") == 0) {
             ggml_allocr_alloc(lctx.alloc, cur);
 
-            if (!ggml_allocr_is_measure(lctx.alloc)) {
+            if (!ggml_allocr_is_measure(lctx.alloc) && batch.embd) {
                 const int64_t n_embd   = cur->ne[0];
                 const int64_t n_tokens = cur->ne[1];
 
@@ -4995,10 +4995,10 @@ static struct ggml_cgraph * llama_build_graph(
             alloc_inp_embd = true;
         }
 
-        if (batch.pos && !alloc_inp_pos && strcmp(name, "inp_pos") == 0) {
+        if (!alloc_inp_pos && strcmp(name, "inp_pos") == 0) {
             ggml_allocr_alloc(lctx.alloc, cur);
 
-            if (!ggml_allocr_is_measure(lctx.alloc)) {
+            if (!ggml_allocr_is_measure(lctx.alloc) && batch.pos) {
                 const int64_t n_tokens = cur->ne[0];
 
                 int32_t * data = (int32_t *) cur->data;