[RUNTIME] Restored do_not_specialize (#374)

python/test/unit/runtime/test_cache.py

@@ -4,6 +4,7 @@ from triton.code_gen import JITFunction
 import triton.language as tl
 import os
 import shutil
+import pytest
 
 tmpdir = ".tmp"
 
@@ -25,6 +26,11 @@ def kernel(X, i, BLOCK: tl.constexpr):
     i = function_1(i)
     tl.store(X, i)
 
+@triton.jit(do_not_specialize=["i"])
+def kernel_nospec(X, i, BLOCK: tl.constexpr):
+    i = i + 1
+    i = function_1(i)
+    tl.store(X, i)
 
 def apply_src_change(target, old, new):
     delattr(kernel.fn, 'hash')
@@ -51,16 +57,34 @@ def test_nested1_change():
     updated = apply_src_change(function_1, 'i + 1', 'i + 2')
     assert baseline != updated
 
+def reset_tmp_dir():
+    os.environ["TRITON_CACHE_DIR"] = tmpdir
+    if os.path.exists(tmpdir):
+        shutil.rmtree(tmpdir)
+
 def test_reuse():
     counter = 0
     def inc_counter(key, binary):
         nonlocal counter
         counter += 1
-    os.environ["TRITON_CACHE_DIR"] = tmpdir
-    if os.path.exists(tmpdir):
-        shutil.rmtree(tmpdir)
     JITFunction.cache_hook = inc_counter
+    reset_tmp_dir()
     x = torch.empty(1, dtype=torch.int32, device='cuda')
     for i in range(10):
         kernel[(1,)](x, 43, BLOCK=1024)
     assert counter == 1
+
+@pytest.mark.parametrize('mode', ['enable', 'disable'])
+def test_specialize(mode):
+    counter = 0
+    def inc_counter(key, binary):
+        nonlocal counter
+        counter += 1
+    JITFunction.cache_hook = inc_counter
+    reset_tmp_dir()
+    x = torch.empty(1, dtype=torch.int32, device='cuda')
+    function = {'enable': kernel, 'disable': kernel_nospec}[mode]
+    target = {'enable': 5, 'disable': 1}[mode]
+    for i in [1, 2, 4, 8, 16, 32]:
+        function[(1,)](x, i, BLOCK=512)
+    assert counter == target