Fixed triton kernel update to support latest triton versions (#2588)

* Update triton kernel using _unsafe_update_src

* support old triton versions

* refactored changes to update triton kernel only once

* Update triton_ops.py

---------

Co-authored-by: Jong Wook Kim <[email protected]>
Co-authored-by: Jong Wook Kim <[email protected]>

Author: ExtReMLapin

whisper/triton_ops.py

@@ -60,7 +60,7 @@ def kernel(
         tl.store(y_ptr + offsets, MIDDLE_ROW_HERE, mask=mask)  # noqa: F821
 
     kernel = triton.JITFunction(kernel.fn)
-    kernel.src = kernel.src.replace(
+    new_kernel = kernel.src.replace(
         "    LOAD_ALL_ROWS_HERE",
         "\n".join(
             [
@@ -69,7 +69,8 @@ def kernel(
             ]
         ),
     )
-    kernel.src = kernel.src.replace(
+
+    new_kernel = new_kernel.replace(
         "    BUBBLESORT_HERE",
         "\n\n".join(
             [
@@ -90,7 +91,14 @@ def kernel(
             ]
         ),
     )
-    kernel.src = kernel.src.replace("MIDDLE_ROW_HERE", f"row{filter_width // 2}")
+
+    new_kernel = new_kernel.replace("MIDDLE_ROW_HERE", f"row{filter_width // 2}")
+
+    if hasattr(kernel, "_unsafe_update_src") is True:
+        kernel._unsafe_update_src(new_kernel)
+        kernel.hash = None
+    else:
+        kernel.src = new_kernel
 
     return kernel