[Mlir-commits] [mlir] [mlir][GPU] Extend gpu.barrier with scope and named-barrier support (PR #195692)

[Fabian Mora]

================
@@ -670,6 +670,12 @@ class BarrierElimination final : public OpRewritePattern<BarrierOp> {
     LDBG() << "checking the necessity of: " << barrier << " "
            << barrier.getLoc();
 
+    // Named barriers have precise arrival-count semantics; never eliminate.
+    if (barrier.getNamedBarrier()) {
+      LDBG() << "barrier is a named barrier, retain it\n";
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fabianmcg wrote:

```suggestion
      LDBG() << "barrier is a named barrier, retain it";
```

LDBG appends new lines automatically.

https://github.com/llvm/llvm-project/pull/195692