[flang] [llvm] [mlir] [flang][OMPIRBuilder][MLIR][llvm] Backend support for atomic control options (PR #151579)

[Sergio Afonso via llvm-commits]

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@@ -0,0 +1,36 @@
+// RUN: mlir-translate -mlir-to-llvmir %s | FileCheck %s
+
+// CHECK: atomicrmw add ptr %loadgep_, i32 1 monotonic, align 4, !amdgpu.ignore.denormal.mode !{{.*}}, !amdgpu.no.fine.grained.memory !{{.*}}, !amdgpu.no.remote.memory !{{.*}}
+
+module attributes {dlti.dl_spec = #dlti.dl_spec<!llvm.ptr = dense<64> : vector<4xi64>, !llvm.ptr<1> = dense<64> : vector<4xi64>, !llvm.ptr<2> = dense<32> : vector<4xi64>, !llvm.ptr<3> = dense<32> : vector<4xi64>, !llvm.ptr<4> = dense<64> : vector<4xi64>, !llvm.ptr<5> = dense<32> : vector<4xi64>, !llvm.ptr<6> = dense<32> : vector<4xi64>, !llvm.ptr<7> = dense<[160, 256, 256, 32]> : vector<4xi64>, !llvm.ptr<8> = dense<[128, 128, 128, 48]> : vector<4xi64>, !llvm.ptr<9> = dense<[192, 256, 256, 32]> : vector<4xi64>, i64 = dense<64> : vector<2xi64>, i1 = dense<8> : vector<2xi64>, i8 = dense<8> : vector<2xi64>, i16 = dense<16> : vector<2xi64>, i32 = dense<32> : vector<2xi64>, f16 = dense<16> : vector<2xi64>, f64 = dense<64> : vector<2xi64>, f128 = dense<128> : vector<2xi64>, "dlti.endianness" = "little", "dlti.legal_int_widths" = array<i32: 32, 64>, "dlti.stack_alignment" = 32 : i64, "dlti.alloca_memory_space" = 5 : ui64, "dlti.global_memory_space" = 1 : ui64>, fir.atomic_ignore_denormal_mode, fir.defaultkind = "a1c4d8i4l4r4", fir.kindmap = "", fir.target_cpu = "generic-hsa", llvm.data_layout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-p7:160:256:256:32-p8:128:128:128:48-p9:192:256:256:32-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5-G1-ni:7:8:9", llvm.target_triple = "amdgcn-amd-amdhsa", omp.flags = #omp.flags<openmp_device_version = 31>, omp.is_gpu = true, omp.is_target_device = true, omp.requires = #omp<clause_requires none>, omp.target_triples = [], omp.version = #omp.version<version = 31>} {
+  llvm.func @_QQmain() attributes {fir.bindc_name = "TEST", omp.declare_target = #omp.declaretarget<device_type = (host), capture_clause = (to)>, target_cpu = "generic-hsa"} {
+    %0 = llvm.mlir.constant(1 : i64) : i64
+    %1 = llvm.alloca %0 x i32 {bindc_name = "threads"} : (i64) -> !llvm.ptr<5>
+    %2 = llvm.addrspacecast %1 : !llvm.ptr<5> to !llvm.ptr
+    %3 = llvm.mlir.constant(1 : i64) : i64
+    %4 = llvm.alloca %3 x i32 {bindc_name = "a"} : (i64) -> !llvm.ptr<5>
+    %5 = llvm.addrspacecast %4 : !llvm.ptr<5> to !llvm.ptr
+    %6 = llvm.mlir.constant(0 : i32) : i32
+    %7 = llvm.mlir.constant(128 : i32) : i32
+    %8 = llvm.mlir.constant(1 : i64) : i64
+    %9 = llvm.mlir.constant(1 : i64) : i64
+    llvm.store %7, %2 : i32, !llvm.ptr
+    llvm.store %6, %5 : i32, !llvm.ptr
+    %10 = omp.map.info var_ptr(%2 : !llvm.ptr, i32) map_clauses(implicit, exit_release_or_enter_alloc) capture(ByCopy) -> !llvm.ptr {name = "threads"}
+    %11 = omp.map.info var_ptr(%5 : !llvm.ptr, i32) map_clauses(implicit, exit_release_or_enter_alloc) capture(ByCopy) -> !llvm.ptr {name = "a"}
+    omp.target map_entries(%10 -> %arg0, %11 -> %arg1 : !llvm.ptr, !llvm.ptr) {
+      %12 = llvm.mlir.constant(1 : i32) : i32
+      %13 = llvm.load %arg0 : !llvm.ptr -> i32
+      omp.parallel num_threads(%13 : i32) {
+        omp.atomic.update %arg1 : !llvm.ptr {
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skatrak wrote:

Could you also add a check including an `omp.atomic.capture` as well?

https://github.com/llvm/llvm-project/pull/151579