clang/test/CIR/Lowering/omp-target-map.cir

// RUN: cir-opt %s --cir-to-llvm | FileCheck %s

// Verify that OpenMP operations have their CIR types properly converted to
// LLVM types during CIR-to-LLVM lowering. Without the OpenMP-to-LLVM
// conversion patterns, this would fail with unrealized_conversion_cast errors.

!s32i = !cir.int<s, 32>

module {
  // CHECK-LABEL: llvm.func @target_map_from
  cir.func @target_map_from(%arg0 : !s32i) {
    %0 = cir.alloca "x" align(4) init : !cir.ptr<!s32i>
    cir.store %arg0, %0 : !s32i, !cir.ptr<!s32i>

    // CHECK: %[[ALLOCA:.*]] = llvm.alloca {{.*}} x i32
    // CHECK: %[[MAP:.*]] = omp.map.info var_ptr(%[[ALLOCA]] : !llvm.ptr, i32) map_clauses(from) capture(ByRef) -> !llvm.ptr {name = "x"}
    %1 = omp.map.info var_ptr(%0 : !cir.ptr<!s32i>, !s32i) map_clauses(from) capture(ByRef) -> !cir.ptr<!s32i> {name = "x"}

    // CHECK: omp.target kernel_type(generic) map_entries(%[[MAP]] -> %[[ARG:.*]] : !llvm.ptr)
    omp.target kernel_type(generic) map_entries(%1 -> %arg1 : !cir.ptr<!s32i>) {
      // CHECK: %[[C10:.*]] = llvm.mlir.constant(10 : i32) : i32
      // CHECK: llvm.store %[[C10]], %[[ARG]]
      %c10 = cir.const #cir.int<10> : !s32i
      cir.store %c10, %arg1 : !s32i, !cir.ptr<!s32i>
      // CHECK: omp.terminator
      omp.terminator
    }
    cir.return
  }
}