[llvm-branch-commits] [llvm] [mlir] [OMPIRBuilder] Support runtime number of teams and threads, and SPMD mode (PR #116051)

[Johannes Doerfert via llvm-branch-commits]

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@@ -6378,6 +6439,204 @@ TEST_F(OpenMPIRBuilderTest, TargetRegionDevice) {
   auto *ExitBlock = EntryBlockBranch->getSuccessor(1);
   EXPECT_EQ(ExitBlock->getName(), "worker.exit");
   EXPECT_TRUE(isa<ReturnInst>(ExitBlock->getFirstNonPHI()));
+
+  // Check global exec_mode.
+  GlobalVariable *Used = M->getGlobalVariable("llvm.compiler.used");
+  EXPECT_NE(Used, nullptr);
+  Constant *UsedInit = Used->getInitializer();
+  EXPECT_NE(UsedInit, nullptr);
+  EXPECT_TRUE(isa<ConstantArray>(UsedInit));
+  auto *UsedInitData = cast<ConstantArray>(UsedInit);
+  EXPECT_EQ(1U, UsedInitData->getNumOperands());
+  Constant *ExecMode = UsedInitData->getOperand(0);
+  EXPECT_TRUE(isa<GlobalVariable>(ExecMode));
+  Constant *ExecModeValue = cast<GlobalVariable>(ExecMode)->getInitializer();
+  EXPECT_NE(ExecModeValue, nullptr);
+  EXPECT_TRUE(isa<ConstantInt>(ExecModeValue));
+  EXPECT_EQ(OMP_TGT_EXEC_MODE_GENERIC,
+            cast<ConstantInt>(ExecModeValue)->getZExtValue());
+}
+
+TEST_F(OpenMPIRBuilderTest, TargetRegionSPMD) {
+  using InsertPointTy = OpenMPIRBuilder::InsertPointTy;
+  OpenMPIRBuilder OMPBuilder(*M);
+  OMPBuilder.initialize();
+  OpenMPIRBuilderConfig Config(/*IsTargetDevice=*/false, /*IsGPU=*/false,
+                               /*OpenMPOffloadMandatory=*/false,
+                               /*HasRequiresReverseOffload=*/false,
+                               /*HasRequiresUnifiedAddress=*/false,
+                               /*HasRequiresUnifiedSharedMemory=*/false,
+                               /*HasRequiresDynamicAllocators=*/false);
+  OMPBuilder.setConfig(Config);
+  F->setName("func");
+  IRBuilder<> Builder(BB);
+
+  auto BodyGenCB = [&](InsertPointTy,
+                       InsertPointTy CodeGenIP) -> InsertPointTy {
+    Builder.restoreIP(CodeGenIP);
+    return Builder.saveIP();
+  };
+
+  auto SimpleArgAccessorCB =
+      [&](llvm::Argument &, llvm::Value *, llvm::Value *&,
+          llvm::OpenMPIRBuilder::InsertPointTy,
+          llvm::OpenMPIRBuilder::InsertPointTy CodeGenIP) {
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jdoerfert wrote:

all the places in llvm/, no `llvm::`, it's not MLIR.

https://github.com/llvm/llvm-project/pull/116051