[Mlir-commits] [mlir] [OpenMP][mlir] Add Groupprivate op in omp dialect. (PR #162704)

[Kareem Ergawy]

================
@@ -0,0 +1,41 @@
+// RUN: mlir-translate -mlir-to-llvmir %s | FileCheck %s
+
+module attributes {omp.is_target_device = true, llvm.target_triple = "amdgcn-amd-amdhsa",
+                    dlti.dl_spec = #dlti.dl_spec<#dlti.dl_entry<"dlti.alloca_memory_space", 5 : ui32>>} {
+  llvm.func @_QQmain() attributes {fir.bindc_name = "main"} {
+
+    %ga = llvm.mlir.addressof @global_a : !llvm.ptr
+    %map_a = omp.map.info var_ptr(%ga : !llvm.ptr, i32) map_clauses(tofrom) capture(ByCopy) -> !llvm.ptr {name = "i"}
+    omp.target map_entries(%map_a -> %arg1 : !llvm.ptr) {
+      %loaded = llvm.load %arg1 : !llvm.ptr -> i32
+
+      %any_addr = llvm.mlir.addressof @global_any : !llvm.ptr
+      %any_gp = omp.groupprivate %any_addr : !llvm.ptr, device_type(any) -> !llvm.ptr
+      llvm.store %loaded, %any_gp : i32, !llvm.ptr
+
+      %host_addr = llvm.mlir.addressof @global_host : !llvm.ptr
+      %host_gp = omp.groupprivate %host_addr : !llvm.ptr, device_type(host) -> !llvm.ptr
+      llvm.store %loaded, %host_gp : i32, !llvm.ptr
+
+      %nohost_addr = llvm.mlir.addressof @global_nohost : !llvm.ptr
+      %nohost_gp = omp.groupprivate %nohost_addr : !llvm.ptr, device_type(nohost) -> !llvm.ptr
+      llvm.store %loaded, %nohost_gp : i32, !llvm.ptr
+
+      omp.terminator
+    }
+    llvm.return
+  }
+  llvm.mlir.global internal @global_a() : i32
+  llvm.mlir.global internal @global_any() : i32
+  llvm.mlir.global internal @global_host() : i32
+  llvm.mlir.global internal @global_nohost() : i32
+}
+
+// CHECK: define {{.*}} amdgpu_kernel void @__omp_offloading_{{.*}}_{{.*}}__QQmain_{{.*}}(ptr %{{.*}}, ptr %{{.*}}) #{{[0-9]+}} {
+// CHECK-LABEL:  omp.target:
+// CHECK-NEXT :    %[[LOAD:.*]] = load i32, ptr %3, align 4
----------------
ergawy wrote:

nit: just to avoid any failure if the input IR changes/is updated.
```suggestion
// CHECK-NEXT :    %[[LOAD:.*]] = load i32, ptr %{{.*}}, align 4
```

https://github.com/llvm/llvm-project/pull/162704