================
@@ -6182,9 +6182,12 @@ TEST_F(OpenMPIRBuilderTest, TargetRegion) {
 
   TargetRegionEntryInfo EntryInfo("func", 42, 4711, 17);
   OpenMPIRBuilder::LocationDescription OmpLoc({Builder.saveIP(), DL});
-  OpenMPIRBuilder::InsertPointOrErrorTy AfterIP = OMPBuilder.createTarget(
-      OmpLoc, /*IsOffloadEntry=*/true, Builder.saveIP(), Builder.saveIP(),
-      EntryInfo, -1, 0, Inputs, GenMapInfoCB, BodyGenCB, SimpleArgAccessorCB);
+  OpenMPIRBuilder::TargetKernelDefaultAttrs DefaultAttrs = {
+      /*MaxTeams=*/{-1}, /*MinTeams=*/0, /*MaxThreads=*/{0}, /*MinThreads=*/0};
----------------
skatrak wrote:

Defaults in the new struct represent basically what you would expect: max 
values representing "unset" (since these can be either unset (<0), 
runtime-evaluated (0) or constant (>0)) and min values set to 1. I believe that 
set of defaults makes sense, and it matches what clang set the corresponding 
attributes initially too.

As for not overriding the defaults in these tests, `MaxThreads < 0` causes the 
OMPIRBuilder to query the default grid size based on the target triple, whereas 
0 won't. Querying that triggers an assert if the triple is not one of the 
supported offloading targets, so at least that one attribute can't be left 
unchanged unless we change the target triple of the OMPIRBuilder too. But, more 
generally, I think there is nothing in this PR that causes a need to update 
these tests, so I just set all of the values to what they already were before 
the struct was introduced rather than adapting them to its defaults.

I hope that makes sense to you, but let me know if you don't agree.

https://github.com/llvm/llvm-project/pull/116050
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