[PATCH] D150860: [OpenMP] Change clang emitTargetDataCalls to use OMPIRBuilder

[Akash Banerjee via Phabricator via llvm-commits]

TIFitis added inline comments.


================
Comment at: clang/lib/CodeGen/CGOpenMPRuntime.cpp:10399
+    DeviceID = CGF.Builder.getInt64(OMP_DEVICEID_UNDEF);
+  }
 
----------------
jdoerfert wrote:
> Move this behind the if generation and guard the emit scalar with a conditional, all is only needed if both Device is present and IfCond is not known true.
I have moved the device generation after the if generation.
But I am not sure what should be the guard here for emitting the scalar.

My idea was to generate something like:


```
%new_dev = alloca ...
if.then
    %x = load %device
    store %x %new_dev
    ...
    begin_mapper(..., %new_dev, ...)
...
if.then
    ...
    end_mapper(..., %new_dev, ...)
```


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D150860/new/

https://reviews.llvm.org/D150860