[Mlir-commits] [mlir] [MLIR][SCFToOpenMP] Add num-threads option (PR #74854)

[Oleksandr Alex Zinenko]

================
@@ -1,9 +1,9 @@
-// RUN: mlir-opt -convert-scf-to-openmp %s | FileCheck %s
+// RUN: mlir-opt -convert-scf-to-openmp='num-threads=4' %s | FileCheck %s
 
 // CHECK-LABEL: @parallel
 func.func @parallel(%arg0: index, %arg1: index, %arg2: index,
           %arg3: index, %arg4: index, %arg5: index) {
-  // CHECK: omp.parallel {
+  // CHECK: omp.parallel num_threads(%[[NTH:.*]] : i32) {
----------------
ftynse wrote:

You can capture a substring and use it:

```mlir
// CHECK: %[[FOUR:.+]] = llvm.mlir.constant(4 : i32) : i32
// CHECK: omp.parallel num_threads(%[[FOUR]]
```

https://github.com/llvm/llvm-project/pull/74854