FrozenGene commented on a change in pull request #4657: [CodeGen] Generate blob 
use LLVM directly
URL: https://github.com/apache/incubator-tvm/pull/4657#discussion_r365071448
 
 

 ##########
 File path: python/tvm/contrib/cc.py
 ##########
 @@ -51,9 +51,32 @@ def create_shared(output,
     else:
         raise ValueError("Unsupported platform")
 
+def get_target_triple():
+    """ Get the target triple using compiler.
+
+    Returns
+    -------
+        out: str (Linux / Mac) or None (Win32)
+    """
+    if sys.platform == "darwin" or sys.platform.startswith("linux"):
+        cmd = ["g++", "-dumpmachine"]
+        proc = subprocess.Popen(
+            cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+        (out, _) = proc.communicate()
+        if proc.returncode != 0:
+            msg = "dumpmachine error:\n"
+            msg += py_str(out)
+            raise RuntimeError(msg)
+        return py_str(out)
+    elif sys.platform == "win32":
+        return None
+    else:
+        raise ValueError("Unsupported platform")
+
 
 # assign so as default output format
 create_shared.output_format = "so" if sys.platform != "win32" else "dll"
+create_shared.get_target_triple = get_target_triple()
 
 Review comment:
   Understand your meaning. Thanks. Will create new pr after I finish lunch. 

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