[Mlir-commits] [mlir] [MLIR][NVVM] Add optional llc verification for NVVM dialect tests (PR #219980)

[Mehdi Amini]

================
@@ -316,6 +316,27 @@ def find_real_python_interpreter():
 else:
     tools.extend(["mlir-opt"])
 
+
+def enable_llc(llc_executable):
+    config.available_features.add("llc")
+    tools.extend(
+        [
+            ToolSubst(
+                "%llc-verify",
+                f"{llc_executable} -verify-machineinstrs -o {os.devnull}",
+            ),
+        ]
+    )
+
+
+llc_executable = (
+    lit_config.params.get("llc")
+    or os.environ.get("LLVM_LLC_EXECUTABLE", None)
----------------
joker-eph wrote:

I don't find a previous reference to this env var in the repo, I would expect a LLVM-wide convention here, not something specific to these nvvm tests.

https://github.com/llvm/llvm-project/pull/219980