Add contig requirement to aot binding for llm custom ops

Differential Revision: [D93870393](https://our.internmc.facebook.com/intern/diff/D93870393/)

[ghstack-poisoned]

Author: kimishpatel

extension/llm/custom_ops/op_sdpa_aot.cpp

@@ -183,11 +183,11 @@ Tensor& sdpa_with_kv_cache_out_no_context(
 }
 
 at::Tensor sdpa_with_kv_cache_aten(
-    const at::Tensor& q_projected,
-    const at::Tensor& k_projected,
-    const at::Tensor& v_projected,
-    at::Tensor& key_cache,
-    at::Tensor& value_cache,
+    const at::Tensor& q_proj,
+    const at::Tensor& k_proj,
+    const at::Tensor& v_proj,
+    at::Tensor& k_cache,
+    at::Tensor& v_cache,
     const int64_t start_pos,
     const int64_t seq_len,
     // @lint-ignore CLANGTIDY facebook-hte-ConstantArgumentPassByValue
@@ -197,6 +197,11 @@ at::Tensor sdpa_with_kv_cache_aten(
     const bool is_causal,
     // @lint-ignore CLANGTIDY facebook-hte-ParameterMightThrowOnCopy
     const std::optional<double> scale) {
+  auto q_projected = q_proj.contiguous();
+  auto k_projected = k_proj.contiguous();
+  auto v_projected = v_proj.contiguous();
+  auto key_cache = k_cache.contiguous();
+  auto value_cache = v_cache.contiguous();
   auto output = at::empty_like(q_projected);
   WRAP_TO_ATEN(sdpa_with_kv_cache_out_no_context, 11)
   (q_projected,
@@ -256,11 +261,14 @@ at::Tensor custom_sdpa_aten(
     // @lint-ignore CLANGTIDY facebook-hte-ParameterMightThrowOnCopy
     const std::optional<double> scale,
     const bool is_seq_dim_2) {
-  auto output = at::empty(q.sizes());
+  auto q_projected = q.contiguous();
+  auto k_projected = k.contiguous();
+  auto v_projected = v.contiguous();
+  auto output = at::empty_like(q_projected);
   WRAP_TO_ATEN(custom_sdpa_out_no_context, 9)
-  (q,
-   k,
-   v,
+  (q_projected,
+   k_projected,
+   v_projected,
    start_pos,
    attn_mask,
    dropout_p,
@@ -331,7 +339,10 @@ at::Tensor custom_quantized_sdpa_aten(
     const std::optional<at::Tensor>& v_zero_points,
     const std::optional<at::Tensor>& v_scales,
     const bool is_seq_at_dim_2) {
-  auto output = at::empty(q.sizes());
+  auto q_projected = q.contiguous();
+  auto k_projected = k.contiguous();
+  auto v_projected = v.contiguous();
+  auto output = at::empty(q_projected.sizes());
   WRAP_TO_ATEN(custom_quantized_sdpa_out_no_context, 15)
   (q,
    k,