[PATCH] D21852: [Driver][OpenMP] Update actions builder to create bundling action when necessary.

[Json Lee via Phabricator via cfe-commits]

lijiansong added inline comments.
Herald added a subscriber: guansong.


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Comment at: lib/Driver/Driver.cpp:2113-2124
+    // the resulting list. Otherwise, just append the device actions.
+    if (CanUseBundler && !OffloadAL.empty()) {
+      // Add the host action to the list in order to create the bundling action.
+      OffloadAL.push_back(HostAction);
+
+      // We expect that the host action was just appended to the action list
+      // before this method was called.
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hello, 
if I want to compile device-only device code, e.g. clang foo.mlu a.cpp -o bar,
I want to get the following action graph:
for foo.mlu:
input -> preprocess->compile->backend->assemble ,
Then i will get foo.o,
for a.cpp:
input -> preprocess->compile->backend->assemble
then I will get a.o
i want to link foo.o with a.o to get bar, a.cpp is the main, while foo.mlu has the device computation logic.

How can I manage it with offload?


https://reviews.llvm.org/D21852